科研情况简介

【主要学术特点】

长期以来以提升土建工程质量安全和管理效率为主要目标,集成BIM、物联网、人工智能等技术,结合我国重大工程建设,面向住宅建筑、大型公建、道路桥梁、轨道交通等目标对象,开展了土木工程信息技术有关科学问题和工程方法的研究。

基础科学研究方面,注重土木工程传统学科与现代信息技术的交叉融合,依托国家自然科学基金项目、国家863项目等纵向科研课题,针对当前建筑信息共享和应用中存在的问题,对信息获取、管理、集成、共享和应用进行了基础性研究,提出了包括多尺度建筑信息模型、IFC图像信息模型和施工安全信息模型在内的一系列信息模型并定义其表述方式。在此基础上,研究了多种模型之间的转换和信息共享机制,以及在役结构的安全检测、分析和评估手段,提出了“基于BIM的施工过程结构安全分析和综合管理方法”以及“针对既有建筑物的运维期信息化管理和数字防灾方法”,截止2017年6月,获得发明专利 1 项,发表学术论文50余篇(其中SCI收录9篇,EI收录14篇),累计被引450余次(含SCI他引81次)。

研发自主产权平台方面,通过研究轻量化模型技术、多层次高效三维图形渲染技术,开发了具有自主知识产权的图形平台;通过研究开放平台架构和二次开发支撑技术,开发了插件式开放平台。在此基础上,研发了一系列应用软件系统,获软件著作权十余项(其中评价为国内首创1项、国际领先1项),并形成了一个“大数据云平台+客户/网页/移动三端系统”的体系架构,服务于包括城市轨道交通、高铁、高速公路、隧道、桥梁、大型综合体等多个领域的数十项工程。

促进行业技术进步方面,着力将上述研究成果,结合国家和省市的重大工程及企业的现实需求,以“系统应用”为核心,参与到国家体育场“鸟巢”、青岛海湾大桥、广州西塔、昆明新机场航站楼、上海国际金融中心、深圳机场T3航站楼、深圳嘉里中心II期、北京英特宜家、广州地铁等多个投资几十亿、上百亿的大型建设项目中,重点解决施工过程时变结构安全分析和综合管理,以及运维过程的信息化应用中存在困难的问题。相关成果被纳入国家标准、地方规程和住建部颁发的政策文件。此外,作为中国图学学会BIM专业委员会的秘书长,近3年来一直深度参与BIM技术的科研教育和推广应用工作,作为编委编著《中国建筑施工行业信息化发展报告:BIM应用与发展》、《全国BIM技能等级考评大纲》,作为大会秘书长组织了第一、第二届全国BIM学术会议。

获得华夏建设科学技术奖一等奖等奖励多次,并通过知识产权成果转化,实现产值逾一千万元。



【主要学术创新点】

研究了多种模型之间的转换和信息共享机制,提出了基于BIM的施工过程结构安全分析和综合管理方法,研制了相应的软件系统

通过深入研究BIM的信息表达、数据标准、转换算法、共享机制等,突破了建筑模型、结构模型、结构分析模型之间,以及设计模型、施工模型和运维模型之间的转换和信息共享机制技术,在此基础上,提出了基于BIM的施工过程时变结构安全分析方法,探索了BIM技术在大型工程施工中的落地应用模式与方法,研发了相应的施工过程安全分析系统和施工管理系统4套,实现了施工过程时变结构和支撑体系的动态力学分析及施工全过程进度、资源、成本、质量、安全等的综合信息化管理。



研究了在役结构的安全检测、分析和评估手段,提出针对既有建筑物的运维期信息化管理和数字防灾方法,研制相应的软件系统

对在役结构及其附属设备设施的检测、分析和评估手段进行了研究。在此基础上,面向运维期的建筑、结构和机电设备等组成部分,结合BIM、人工智能、云计算、物联网和GIS等技术,研究运维信息模型的定义和描述,突破跨阶段信息传递技术、模型轻量化技术、跨平台信息共享和系统研发技术、智能运维管理技术等,研发了在役桥梁的检测管理系统和建筑物机电设备智能管理系统等3套软件系统,实现了对既有建筑物在运维期的综合信息化和智能化管理。



研究了建筑全生命期信息管理技术,研制了基于云计算和开放架构的自主知识产权信息平台

面向建筑全生命期的信息集成、管理与应用需求,提出了子信息模型(sub-BIM)的概念,以及跨阶段、递进式、多尺度信息建模方法。在此基础上,基于混合云架构,通过组合自主研发的图形平台和开放平台架构,研制了基于云计算和开放架构的自主知识产权信息平台,满足BIM系统对数据开放、功能开放、人机交互开放的二次开发需求,为推进BIM技术推广和应用提供工具手段。



科研项目

【在研项目】
序号 名称 评论
1 基于GIS/BIM的轻量化平台框架与接口技术 评论
项目来源: 国家重点研发计划子课题
本人角色: 负责人
摘 要: 面向集体统建与村民自建等不同应用需求,研究基于BIM和GIS的乡村住宅多尺度信息模型,突破BIM模型轻量化与高效传输技术,建立轻量化平台数据集成接口规范,研发基于Web的模型可视化与平台框架,实现乡村住宅设计、建造信息的集成与统一对外服务。
2 信息驱动下既有建筑物/群多尺度性能模拟与分析技术研究 评论
项目来源: 国家自然科学基金面上
本人角色: 负责人
摘 要: 以既有建筑运维期信息作为支撑,以BIM和AI等信息技术为驱动,通过对既有建筑性能分析体系的深入研究,面向不同尺度的性能分析需求,提出一个多尺度建筑物运维信息模型,并基于混合云架构实现海量信息的集成高效管理。在此基础上,研究外环境尺度和内环境尺度的信息融合机制,通过技术集成、系统集成和应用集成的方式,研发一个面向既有建筑物/群的多尺度性能模拟与分析系统,以实现多尺度建筑运维期性能分析与预测。
3 基于能耗监测系统的建筑及其机电系统标准化大数据提取技术研究 评论
项目来源: 国家重点研发计划子课题
本人角色: 负责人
摘 要: 针对当前建筑能耗监测系统数据种类多样,内容繁杂的特点,根据子课题1数据提取准则,建立从已有能耗监测系统提取动态标准化大数据的方法,实现云端数据提取软件模块。包括:1)基于子任务1中建筑能耗数据模型,考虑现有分项计量工程的能耗数据传输的不足和缺陷,研究建立面向动态监测的建筑能耗数据模型。2)分析当前能耗监测系统的数据模型,研究采用数据接口和系统集成等方式实现动态能耗监测数据与上述建筑能耗数据模型的集成,以及基于数据挖掘的标准化大数据提取。3)研究基于数据挖掘的建筑及机电标准化大数据提取技术,实现云端数据提取软件模块。
4 移动端三维图形管理模块及模型轻量化 评论
项目来源: 横向项目
本人角色: 负责人
摘 要: 研发“移动端三维图形管理模块及模型轻量化”,实现:1、模型压缩与网络传输优化;2、模型的三角网格简化;3、模型加载及显示优化;4、开发iOS及Android端的三维图形显示模块。
5 基于BIM的动态信息采集与分析技术 评论
项目来源: 横向项目
本人角色: 负责人
摘 要: 建筑的全生命期往往需要牵涉多方互相配合,而当前在建筑行业的实践中,建筑工程的不同参与方互相传递的BIM信息大多是不随时间变化发生的静态信息。在实际的建筑工程项目中的施工和运维阶段往往会产生大量的动态数据,如基于物联网监测设备获取的现场温度、湿度等环境参数,结构应力、应变和位移等结构物参数,以及不断产生的进度变更和维护维修记录等。这些数据不但在数据结构、存储方式、数据结构等方面与静态信息有较大的差别,其中更包含有大量有价值的信息和知识,具有很高的数据挖掘层面的潜力和应用价值。本研究将基于BIM模型及其数据标准,研究基于物联网技术的动态信息大数据的采集技术与方法。在此基础上,针对施工期盾构机作业,运维期建筑能耗监控以及路面损伤识别的具体业务场景,基于物联网监测信息与BIM模型的数据集成技术,以及数据挖掘、大数据分析、图像识别和机器学习等人工智能技术,研究BIM动态信息的大数据标准化提取和智能分析技术,并在上述的实际应用案例中,走通数据获取、分析和处理的完整流程,为施工和运维管理等提供优化决策的支持。
6 广州市市政交通工程BIM技术应用发展战略研究 评论
项目来源: 横向项目
本人角色: 负责人
摘 要: 对广州市市政交通工程 BIM 技术应用发展提供战略研究咨询服务,编制广州市市政交通工程 BIM 技术应用发展战略研究报告。
7 车陂路--新滘东路隧道工程(黄埔大道至新港东路)基于BIM技术的隧道工程精细化设计与施工研究 评论
项目来源: 横向项目
本人角色: 负责人
摘 要: 车陂路-新滘东路隧道工程(黄埔大道至新港东路)南起新港东路、止点至现状黄埔大道交叉口,全长约 2.07 km,道路等级为城市主干路,设计速度 60km/h。隧道工程主线全长 1547m,其中沉管段总长 492m,跨江隧道主线采用双向六车道。利用 BIM 先进技术和历年来项目管理经验,搭建工程项目全设计、施工、运维等全流程的 BIM 应用管理平台,实现隧道管线综合以及沉管管节精细化设计、施工及运维。
8 建筑机电设备知识图谱的构建和应用研究 评论
项目来源: 横向项目
本人角色: 负责人
摘 要: MEP专业(电气、暖通、给排水)设计是建筑设计的重要内容,但由于建筑业数据结构复杂,知识库建设落后,从业人员难以精确获取该领域的所需知识。广联达在建筑信息领域积攒了大量以MEP设计、管理、建设为核心的原始数据。以这些多源异构数据为核心,可构建基于知识图谱的智能搜索引擎。该课题包括三部分内容,第一部分为基于知识图谱的数据结构化处理,需突破MEP领域语料库的收集、自动词性标注、实体识别和关系抽取等技术,由MEP原始数据构造领域知识图谱。第二部分为智能搜索引擎的构建,即基于MEP领域知识图谱,融合自然语言处理及深度学习技术,自动判断用户所需的“知识点”,进而给出用户想要的答案。第三部分是课题总结,研究将本课题构造的知识图谱用于智能问答,MEP构件检索,关联推荐、智慧工地等多项业务的可能。
【结题项目】
序号 名称 评论
1 基于 BIM 的大型公共建筑运维期安全管理技术研究 评论
项目来源: 国家自然科学基金面上
本人角色: 负责人
摘 要: 针对当前大型公共建筑运维期安全管理中存在的海量信息的管理和集成应用方 面等问题,本课题拟结合大型公共建筑的安全管理体系,通过引入 BIM 技术,并结合物联网 技术、云计算技术等国际上新兴前沿技术,基于国际建筑业 IFC 标准,构建一个基于 BIM 和 GIS 的多尺度运维管理模型。在此基础上,以集成创新为主要手段,研究基于云计算技术的 运维信息管理以及基于物联网的安全性能动态监测、评估与预警技术,开发基于 BIM 的大型 公共建筑运维期安全管理平台(BIM-SMP),为大型公共建筑运维期安全信息模型的创建和应 用提供一套完整的理论、方法、技术和平台支持,实现运维期安全的宏观管理和微观管理相 结合、信息管理和信息应用相结合、动态监测和实时评价相结合以及灾后模拟和逃生指引相 结合,可及时发现建筑安全隐患和制定灾后应急方案,进而提高建筑结构及其附属机电设备 的安全性能,减少建筑灾害损失。
成果介绍: 基于BIM的大型公共建筑运维期安全管理技术研究(科普)
2 基于BIM和物联网的再生水厂辅助运维管理 评论
项目来源: 北京市科技计划子课题
本人角色: 负责人
摘 要: 针对槐房水厂建筑物及构筑物繁多、工艺管线复杂等特点,研究设计、施工过程BIM信息的特征,引入建筑业国际标准IFC(Industry Foundation Classes),通过建立机电设备信息模型(MEP-BIM),解决设计、施工阶段BIM机电信息向运维阶段集成交付的问题,实现信息的综合管理和应用;同时,在BIM集成交付模型的基础上,综合应用计算机辅助工程技术(CAE)、虚拟现实技术、人工智能技术、工程数据库、移动网络技术、物联网技术以及计算机软件集成技术,根据北京槐房再生水厂项目的特点和具体需求,应用物联网的核心技术,通过技术集成、系统集成和应用集成等方式,开发“基于BIM的再生水厂辅助运维管理系统”,提供运维阶段的综合信息管理,实现快速获取、管理和处理相关信息,支持运维过程的综合信息、维护维修、运维知识库、机电设备信息管理与应急决策等,从而提高北京槐房再生水厂运维阶段的工作效率和信息化管理水平。
3 面向设计和施工期的建筑物时变结构安全性能的4D模拟和分析 评论
项目来源: 国家自然科学青年基金项目
本人角色: 负责人
摘 要: 当前施工安全分析和管理的手段主要包括工程安全管理和结构安全分析两方面。然而,目前的相关研究主要从其各自的角度来展开,没有联系起来进行综合分析。事实上,导致施工中任何一类安全事故的因素都不是孤立的。为实现集成化的施工期时变结构安全性能的分析和管理,引入信息技术是一条必需和可行的途径。本研究拟引入数据库、人工智能等新兴的计算机信息技术,结合传统结构工程领域中的时变结构分析方法,建立一个面向设计阶段和施工阶段的统一的信息模型,用于存储和管理海量的建筑信息,以及实现多种有限元计算软件中结构分析模型的统一。再应用四维CAD技术来模拟和描述施工全过程,并采用不同的有限元软件进行动态的结构计算,实现施工全过程中结构安全性能的动态模拟和分析,可为设计阶段考虑施工受力变化提供参考,也为施工现场提供新的安全分析手段,从而达到提高设计阶段和施工阶段效率和质量、降低生命周期成本、减少施工过程安全事故发生的目的。
4 基于全生命期绿色住宅产品化数字运营管理技术研究 评论
项目来源: 国家863项目子课题
本人角色: 负责人
摘 要: 通过实现设计、施工阶段与运行维护阶段的信息共享,研究基于全生命期的产品化绿色住宅运维管理技术、绿色性能与安全性能动态监控及评价技术,开发基于全生命期的产品化绿色住宅运维管理系统,为实现绿色住宅运维期的节能减排、防灾减灾和信息化管理提供技术支撑。
5 面向结构设计与施工阶段的统一信息模型的研究与应用 评论
项目来源: 中国博士后科学基金面上资助
本人角色: 负责人
摘 要: 当前施工安全分析和管理的手段主要包括工程安全管理和结构安全分析两方面。然而,目前的相关研究主要从其各自的角度来展开,没有联系起来进行综合分析。事实上,导致施工中任何一类安全事故的因素都不是孤立的。为实现集成化的施工期时变结构安全性能的分析和管理,引入信息技术是一条必需和可行的途径。本研究拟引入数据库、人工智能等新兴的计算机信息技术,结合传统结构工程领域中的时变结构分析方法,建立一个面向设计阶段和施工阶段的统一的信息模型,用于存储和管理海量的建筑信息,以及实现多种有限元计算软件中结构分析模型的统一。再应用四维CAD技术来模拟和描述施工全过程,并采用不同的有限元软件进行动态的结构计算,实现施工全过程中结构安全性能的动态模拟和分析,可为设计阶段考虑施工受力变化提供参考,也为施工现场提供新的安全分析手段,从而达到提高设计阶段和施工阶段效率和质量、降低生命周期成本、减少施工过程安全事故发生的目的。
6 基于BIM和4D技术的施工现场时变结构与可动设施间的动态碰撞检测 评论
项目来源: 中国博士后科学基金特别资助
本人角色: 负责人
摘 要: 本研究通过引进4D技术和BIM,将进度信息与场地实体的空间信息进行严密的整合,组成场地设施的4D时空信息模型,而不再局限于只是一种场地设施随时间变化的三维表现。并基于此4D时空信息模型,结合改进的物理碰撞检测算法,将系统的场地碰撞冲突分析功能扩展至每一个时间点,针对每个时间点对时变结构与可动设施之间进行动态的物理碰撞检测。本研究成果能为加强施工过程中的场地管理,避免由于时变结构与可动场地设施之间发生碰撞而导致安全事故,也为改善施工现场只能依靠管理者进行主观决策的落后局面,提供新的方法和手段,具有理论意义和应用前景。
7 多重灾害作用下大型复杂混合结构工作机理研究 评论
项目来源: 清华大学自主科研
本人角色: 参与
8 重大工程地质灾害快速监测与评估 评论
项目来源: 国家863项目子课题
本人角色: 参与
9 基于BIM的机电设备设施管理系统 评论
项目来源: 横向项目
本人角色: 负责人
摘 要: 本研究通过引入国际标准IFC(Industrial Foundation Classes),基于从设计和施工阶段所建立的面向机电设备的BIM(MEP-BIM),设计机电设备全信息数据库,用于信息的综合存储与管理。在此基础上,开发基于BIM的机电设备智能管理系统(BIM-FIM 2012),其目的一方面是为了实现MEP安装过程和运营阶段的信息共享,以及安装完成后将实体建筑和虚拟的MEP-BIM一起集成交付;另一方面是为了加强运营期MEP的综合信息化管理,为延长设备使用寿命、保障所有设备系统的安全运行提供高效的手段和技术支持。
10 天津富力广东大厦项目投标的BIM技术服务 评论
项目来源: 横向项目
本人角色: 负责人
摘 要: 基于BIM技术和清华大学自主知识产权的“建筑工程4D项目管理系统”,为施工投标方在天津富力广东大厦项目的土建施工投标阶段提供BIM技术服务。主要内容和要求为利用BIM技术和4D系统协助,将甲方建立的BIM模型导入到4D系统中,并在该系统中实现4D施工过程模拟(能够展示相关参数和数据)、资源使用分析、成本费用分析,并形成一套动画。
11 深圳机场T3航站楼玻璃幕墙快速建模 评论
项目来源: 横向项目
本人角色: 负责人
摘 要: 深圳机场T3航站楼的幕墙造型采用了自由曲面上参数化造型的设计,建筑设计方使用空间三维坐标点的方式给出了航站楼外表皮的单层单线模型。在进行施工图深化设计时,需根据该模型以及施工图设计过程中所需的各种指导生产/安装的信息,对原数据进行相应的预处理,从而建立符合施工图要求的多层构造的三维模型,并实现图纸输出。本研究在建筑设计方提供的数据基础上,开发了集预处理、自动建模、后处理等功能于一体的深圳机场T3航站楼幕墙CAD系统(T3-CW-CAD),旨在提高幕墙施工图设计工作的效率。应用结果表明该系统的研发对于指导建筑构件的生产和幕墙系统的施工起到了关键的作用。
12 基于BIM技术的建筑工程安全信息模型及分析软件研究 评论
项目来源: 国家“十一五”科技支撑计划子课题项目
本人角色: 参与
摘 要: 针对建筑工程全生命周期,着眼于建筑施工过程安全分析,基于BIM技术,研究并建立适合我国的建筑工程安全信息模型,研制基于BIM的建筑工程4D施工管理与安全分析系统。包括建立基于BIM技术的建筑安全信息模型、研究施工期建筑结构的安全分析和预测方法、研究建筑施工过程的冲突检测和安全分析方法、建立建筑施工期安全控制管理和决策支持模型、研制基于BIM技术的建筑安全分析与控制系统、将该软件的原型系统试用于实际工程等研究内容。课题于2011年4月15日在北京通过专家组验收和鉴定,评价为“国际领先水平”。
13 建筑设计与施工一体化信息共享技术研究 评论
项目来源: 国家“十一五”科技支撑计划子课题项目
本人角色: 参与
摘 要: 通过深层次的理论研究和高新技术的综合应用,确立BIM的理论、方法和建模技术,引入建筑业国际标准IFC,建立建筑工程设计与施工一体化信息模型和数据交换标准,开发设计与施工信息共享管理平台及相关的支撑软件,从而为实现设计与施工的信息交换、共享和集成化管理,提供研究理论、方法和技术方面的支持,并为开发新一代建筑设计和建筑施工管理系统提供标准、工具和平台,以便进一步解决项目建设各阶段的信息共享,实现建筑全生命期管理奠定基础。
14 《深圳市历史遗留建筑物安全性检测与鉴定规程》 评论
项目来源: 深圳市建设局
本人角色: 参编
摘 要: 由深圳市住房和建设局委托,清华大学深圳研究生院土建工程安全研究中心和中国建筑科学研究院国家建筑工程质量监督检验中心为主编单位,陈肇元院士担任主编,遇平静教授、陈勤博士和胡振中博士参编,会同有关单位共同完成了《深圳市历史遗留建筑物安全性检查评估和检测鉴定规程》。审查会议于2011年11月28日在深圳市迎宾馆召开,认为《规程》针对临时使用建筑的安全评估提出的基于建筑结构状况全面检查的评价方法、对于确认产权建筑物的检测鉴定提出的基于建筑状况分类的抽样检测方法和鉴定要求及安全性鉴定与抗震性鉴定相结合的综合评估方法,具有创新性。;《规程》对深圳市历史遗留建筑的安全性检测鉴定做了系统和详细的规定,对指导和规范该类建筑物的安全性检测鉴定将起到重要作用,具有显著的社会经济效益,其研究内容和方法在国内国家标准及地方标准中属首创,达到了国内领先水平。
15 4D-BIM系统的研发与应用(国家体育场、广州地铁、上海国际金融中心、昆明新机场、中建地产、北京英特宜家、深圳天安高尔夫珑园、青岛海湾大桥、广州西塔、海军总医院9931工程) 评论
项目来源: 横向项目
本人角色: 参与
16 基于BIM的济南黄河公铁两用桥工程施工安全监测与4D动态管理系统 评论
项目来源: 横向项目
本人角色: 参与
摘 要: 在清华大学已有的 BIM(Building Information Modeling)技术研究成果和“基于BIM的工程项目4D施工动态管理系统”软件的基础上,定制开发“基于BIM的济南黄河公铁两用桥工程施工安全监测与4D动态管理系统”,并将该系统应用于济南黄河公铁两用桥工程的实际施工管理过程中。
17 基于BIM的建筑工厂化(设计、加工、仓储)管理系统 评论
项目来源: 横向项目
本人角色: 负责人
摘 要: 本研究通过应用BIM技术,通过开发具有自主知识产权的建筑工厂化(设计、加工、仓储)管理系统,为项目多参与方提供协同工作平台,辅助BIM深化设计、预制构件信息管理、预制构件编码、预制构件加工、现场装配组合。
18 轨道交通BIM管理平台研究与开发 评论
项目来源: 横向项目
本人角色: 负责人
摘 要: 针对广州市轨道交通的建设需求,在清华大学已有的BIM(Building Information Modeling)技术研究成果和“基于BIM的工程项目4D施工动态管理系统”软件的基础上,研发“轨道交通BIM管理平台”(以下简称BIM平台),并为合作方在广州市轨道交通项目提供BIM平台的搭建、接入、使用、培训、定制开发与软件维护等技术服务。
19 基于Web的BIM服务平台研究与开发 评论
项目来源: 自主选题
本人角色: 负责人
摘 要: 本研究为自选课题研究项目,自主研发一个基于WebGL的网页端BIM平台,实现1)BIM模型的浏览与交互;2)面向结构分析的BIM模型转化;3)BIM知识智能搜索引擎。为BIM的进一步跨平台普及推广应用奠定良好的基础。
20 新一代桥梁管理系统软件开发 评论
项目来源: 横向项目
本人角色: 负责人
摘 要: 针对当前的桥梁管理系统普遍存在着管理体系不完整、分析和评估模型落后且不准确、数据库功能不够强大、人机交互体验性不强等问题,基于WebGIS和先进的退化模型、费用模型,开发“新一代桥梁管理系统软件”,实现桥梁在运维过程中的综合信息管理、检查管理、劣化分析、维护管理、报表输出以及决策支持的管理内容。
21 建筑信息模型(BIM)联合研究中心一期项目 评论
项目来源: 横向项目
本人角色: 负责人
摘 要: 在清华大学(土水学院)-广联达软件股份有限公司BIM联合研究中心的支持下,进行以下三个课题的研究:面向BIM的知识引擎的研究与开发(基础研究专项)、基于BIM的时变结构安全性能模拟和分析系统(系统研发专项)、基于BIM的机电设备运维管理系统(系统研发专项)。
22 基于云计算的建筑全生命期BIM集成与应用关键技术研究 评论
项目来源: 国家自然科学基金面上项目
本人角色: 参与
摘 要: 本课题针对当前建筑信息模型(BIM)技术应用于建筑业信息化存在的问题和迫切需求,通过引入国际上新兴的云计算技术,基于国际建筑工业IFC标准,构建一个面向建筑全生命期各阶段和不同应用的BIM结构体系,提出面向建设项目多参与方分阶段递进式的BIM建模方法,研究BIM数据分布存储及管理、BIM数据集成及融合、BIM数据提取与交换以及基于过程的BIM服务及应用等关键技术,开发基于云计算的BIM集成与应用服务平台(BIM Integration and Server Platform,BIMISP)。为建筑全生命期BIM创建和应用提供一套完整的理论、方法、技术和平台支持,实现BIM信息在建设项目规划、设计、施工和运行维护全过程的全局共享、无损传递和充分利用,进而提高工作效率和质量、降低资源消耗,支持在建筑全生命期实施可持续发展战略。

实际工程概览

The Beijing Intel IKEA.jpg

北京英特宜家

The Kunming new airport.jpg

昆明新机场

The National Stadium -- Bird's Nest.jpg

国家体育场“鸟巢”

The Guangzhou West Tower.jpg

广州西塔

The Shenzhen Kerry Centre Phase II.jpg

深圳嘉里中心

The Shanghai International Financial Center.jpg

上海国际金融中心

The Navy General Hospital 9931 project.png

海军总医院9931工程

The Qingdao Bay Bridge.jpg

青岛海湾大桥

The terminal 3 of Shenzhen Airport.jpg

深圳机场T3航站楼

学术成果

【专利】
序号 时间 名称 评论
1 2012 基于IFC标准的建筑信息模型数据集成与交换引擎装置和方法 评论
类 型: 中华人民共和国发明专利
专利号: 201110023930
摘 要:
本发明属于建筑业信息技术领域,为建筑信息模型(Building Information Model,BIM)的创建和应用,提供一种基于IFC标准的建筑信息模型数据集成与交换引擎装置和方法。以基于IFC标准和关系型数据库建立的BIM数据库为基础,实现IFC格式BIM解析,非IFC格式建筑信息转化,BIM子模型的提取和集成,BIM数据存储、交换以及访问控制,该引擎装置包括IFC实体库、IFC文件解析器、IFC几何模型转化器、Project-IFC转化器、BIM子模型集成器、BIM子模型提取器、数据访问控制器、BIM数据存储器、BIM数据提取器以及IFC文件生成器等组件。本发明支持多种格式的BIM数据转化,可实现面向建筑生命期各阶段或不同应用的BIM数据集成与交换。采用数据批量处理技术,有效提高了BIM数据集成与交换的效率。
【软件著作权】
序号 时间 名称 评论
1 2018 基于BIM的大型公共建筑运维期安全管理平台(BIM-SMP) 评论
著作权号: 2018SR729088
摘要:
本软件名称为基于BIM的大型公共建筑运维期安全管理平台(BIM-based Safety Management Platform for large public buildings,简称BIM-SMP),为大型公共建筑运维期安全信息模型的创建和应用提供一套完整的软件平台支持。
BIM-SMP是一款面向大型公共建筑的运维期的BIM应用软件。主要功能软件均以插件的形式挂接到主平台上,可以根据自己的需求自主开发插件。本系统主要包含以下功能模块:
1)	主应用平台:包括基本的用户界面、登录注销、视图、导航等界面,同时包含自主开发的BIM环境。
2)	项目属性与管理:管理项目、子项目及BIM关联的各类属性信息。
3)	建筑设备安全管理:实现建筑设备及自动控制系统的信息获取与集成、实时监控结果的动态显示、运行状态分析与预警等。
4)	结构安全管理:引入物联网技术,通过智能传感器布设,获取住宅结构安全性能信息,通过数据扩展方式与原有的BIM模型实现异构信息的整合,实现结构安全性能动态监测与评价。
5)	人员安全管理:基于人工智能的大型公共建筑人员动态疏散的研究成果,提供了人员安全模型建立、动态疏散策略功能、人员安全可视化等实用功能。
2 2017 基于BIM的建筑设备运维管理系统V1.0 评论
著作权号: 2017SR046923
3 2016 基于全生命期产品化绿色住宅运维管理系统(LC-FGB-FM) 评论
著作权号: 2016SR269712
摘要:
1.基于IFC等接口集成设计施工信息,建立统一的运维数据库,实现基于BIM的产品化绿色住宅运维数据管理与共享,运维管理的可视化和网络化;2.基于多层次的运维数据管理技术,实现基于BIM的产品化绿色住宅物业管理,包括机电信息管理、维护维修管理、成本管理、运维知识库和应急管理等;3.提供多种数据接口,实现BIM与BAS、传感器等监测信息的集成,实现建筑设备及自动控制系统的信息获取与集成、实时监控结果的动态显示、运行状态分析与预警等;4.通过集成IES-VE分析数据与实时能耗监控数据,实现对建筑各系统能耗的监控与统计,对住宅建筑能耗状态进行评估,实现基于BIM的产品化绿色住宅能耗等绿色性能指标的监控和评价;5.通过物联网技术和智能传感器,实现结构全性能动态监测与评价。
4 2016 基于BIM的时变结构安全性能模拟和分析系统(BIM-SSAS) 评论
著作权号: 2016SR179822
摘要:
实现4D模型与施工安全质量数据的集成、4D可视化模拟、施工安全监测、施工安全分析、安全风险识别与质量管控
5 2016 基于BIM的建设工程文件归档管理系统(BIM-CDM) 评论
著作权号: 2016SR123940
摘要:
1)系统将BIM模型属性和各类附件分别用相应格式的文档统一存储,并提供了分类、搜索、查询、统计的功能。为运维人员查询设备信息,修改设备状态,追溯设备历史、查看文档附件信息等需求,提供了方便快捷的查询、编辑和分析工具,做到了海量文档信息的高效利用和管理。 2)运维知识库功能提供了包括操作规程、培训资料等知识文档,运维人员可根据自己的需要,在遇到运维难题时快速查找和学习。 3)针对移动端对文档信息查询的需要,专门开发了相应的APP。利用二维编码技术以及多维可视化BIM平台可以在移动端做到文档信息的动态显示与查询分析。运维人员可以通过PDA,在户外维护现场快速扫描和查询设备的详细信息、查看维护日志,解决当前问题。
6 2016 基于BIM的机电设备设施管理系统V2.0(BIM-FIM) 评论
著作权号: 2016SR057011
摘要:
提供了IFC数据接口引擎、Excel工程信息录入接口引擎,支持设计、施工和运维阶段以及与其他应用系统之间的信息共享;
基于BIM技术和网络环境的多维可视化平台,实现了运维管理的网络化以及跨平台的BIM运维数据共享;
在系统v1.0版本的基础上重构,进一步增强和完善了电脑端和移动端的运维管理功能,包括图纸、附件、操作规程、培训资料和模拟操作等运维知识管理功能,维护计划编制、维护日志、维修管理、应急事件处理等日常维护工作的信息管理功能以及信息检索、统计和报表功能;
通过构件编码生成二维码标签,并在移动终端实现二维码的扫描、解码和信息提取,实现快速地构件识别、定位和应急处理;
基于自主开发的OpenGL图形平台,解决了大型工程3D模型显示效率的瓶颈问题;
提供了BIM系统与智能传感器、机电设备监测系统的集成接口,实现BIM模型上监测信息显示、历史监测信息查询、监测信息管理和机电信息查询等功能;
通过BIM与图像识别技术的集成,实现BIM智能停车管理系统,包括车牌识别、基于BIM模型的车位状态显示、最优出入停车场路径规划等功能。
7 2013 基于BIM的结构分析模型转换系统(Unitive-BIM) 评论
著作权号: 2013SR138762
摘要:
Unitive-BIM系统应用BIM技术,通过研究不同有限元分析软件信息模型的异同,实现各分析模型与BIM模型之间的双向数据接口,开发出结构分析模型转换系统,实现不同模型之间的信息转换,保证了不同结构分析软件间信息的一致,摆脱之前繁琐的、重复性的建模工作,大大提高了结构分析过程的效率。
8 2013 基于BIM的建筑工厂化(设计、加工、仓储)管理系统(BIM-FC) 评论
著作权号: 2013SR121642
摘要:
基于BIM的建筑工厂化(设计、加工、仓储)管理系统(BIM-FC)采用BIM技术,通过将各业务流程中产生的信息集成到BIM模型中,为项目多参与方提供协同工作平台,辅助BIM深化设计、预制构件信息管理、预制构件编码、预制构件加工以及现场装配组合管理等功能。本软件将深化设计、预制加工、材料管理、物流运输、现场施工等各个环节有效链接,多参与方协同工作,提高项目管理工作效率,并且提出了业务管理流程以及预制组合拼装中合理运用BIM的技术手段和方法,使现场装配组合更加合理有序,具有良好通用性。
9 2012 基于BIM的机电设备设施管理系统(BIM-FIM) 评论
著作权号: 2012R11L173033
摘要:
基于BIM的机电设备设施管理系统(BIM-FIM)引入建筑业国际标准IFC,通过建立机电设备信息模型(MEP-BIM),实现机电设备安装过程和运维阶段的信息共享,并支持在安装完成后将设备实体和虚拟的MEP-BIM一起集成交付给业主。同时作为机电设备信息化运维管理平台,为运维人员提供高效的运维手段,以保障所有机电设备及其各子系统的安全运行。系统可用于各种建筑工程的机电设备运维期管理。
10 2011 基于BIM的建筑工程4D施工安全与冲突分析系统(4DBIM-COSCAS) 评论
著作权号: 2011SR031069
摘要:
基于建筑信息模型的建筑工程4D施工安全与冲突分析系统(BIM-based 4D Construction Safety and Conflict Analysis System,简称4DBIM-COSCAS)结合我国建筑施工安全分析与管理的实际需求,通过建立基于IFC标准的4D施工安全信息模型,实现建筑设计、结构分析和施工管理的信息共享与集成管理,提供了施工过程安全检查评分、施工过程时变结构和支撑体系的动态安全分析、施工进度/资源/成本费用的冲突分析与管理以及场地设施动态碰撞检测等功能,在4D动态施工管理和过程模拟中实现了施工安全与冲突分析。系统可用于各种建筑工程的施工安全分析和管理,尤其适用于大型、复杂工程。
11 2006 基于IFC标准的建筑工程4D施工管理系统(4D-GCPSU) 评论
【国际期刊论文】
序号 时间 名称 评论
1 2020
W. Li, Z. Hu, Z. Pei, S. Li, P.W. Chan. A discussion on influences of turbulent diffusivity and surface drag parameterizations using a linear model of the tropical cyclone boundary layer wind field[J]. Atmospheric Research, 2020. https://doi.org/10.1016/j.atmosres.2020.104847
评论
检索情况: SCI检索号:
关 键 词: Theoretical model, Surface drag coefficient, Turbulent diffusivity, Typhoon
摘 要:
In order to investigate and predict dynamics and developments of the tropical cyclone boundary layer (TCBL), theoretical and engineering models depicting the TCBL wind field are of great academic and practical interest. In the present study, a linear height-resolving model, where the vertically varying turbulent diffusivity (K) and speed dependent surface drag coefficient (Cd) parameterizations are incorporated, is proposed based on the original model proposed by Kepert (2001). The proposed model is validated through comparisons with the estimates made based on the observational data gathered by dropsondes. As the more realistic and sophisticated parameterizations are integrated, the proposed model produces predictions in better agreements with observations in the lower part of the TCBL. It is noted that the value of the proposed model is not only the improvements over the original model by Kepert (2001), but also the room for more sophisticated K and Cd parameterizations. With the help of the proposed model, it is feasible to discern the fundamental relationships between K and Cd parameterizations and the TCBL wind field in a parametric study. As the first step, a few K and Cd parameterizations are implemented in the proposed model, and their influences on the prediction of the TCBL wind field are systematically discussed. It is concluded that, whereas the prediction of the TCBL wind field is sensitive to the parameterization of K, Cd has limited effects on the prediction. Moreover, assuming K and Cd as constants could lead to erroneous estimates of the wind profile and strength of surface winds in the TCBL.
下载链接: https://doi.org/10.1016/j.atmosres.2020.104847
2 2019
Qiao Wen, Jian-Ping Zhang, Zhen-Zhong Hu, Xue-Song Xiang, Tao Shi. A Data-Driven Approach to Improve the Operation and Maintenance Management of Large Public Buildings[J]. IEEE Access, 2019, 7: 176127-176140.
评论
检索情况: SCI检索号:000509399500077
关 键 词: Operation and maintenance, data mining, datacube, airport terminal
摘 要:
With the development of modern information technologies and more frequent utilization of information systems to operation and maintenance (O&M) management, a great amount of O&M data are collected nowadays. However, because of the large volume and poor quality, as well as a lack of effective data analysis techniques, these data are rarely analyzed and translated into useful knowledge for O&M decisions. This study presents a data model, which is named as datacube with multi-dimensional and unrestrained characteristics, for these data to better support data mining algorithms. The model organizes all the different data in both relational database and in the memories and is able to support analysis-requirements-oriented data extractions. Based on this datacube, an O&M data mining approach is proposed with procedures of data preparation, data clustering and data mining. The proposed datacube-based data mining approach was applied to the Kunming Chang Shui international airport terminal. More than 7 years on-site repairing data were used for data mining and the outcomes verified the model and the approach to be feasible and valuable for improving O&M management.
下载链接: ../Files/Resource/IEEE_Access_2019_Hu.pdf
3 2019
Zhen-Zhong Hu, Shuang Yuan, Claudio Benghi, Jian-Ping Zhang, Xiao-Yang Zhang, Ding Li, Mohamad Kassem. Geometric optimization of building information models in MEP projects:Algorithms and techniques for improving storage, transmission and display[J]. Automation in Construction. 2019, https://doi.org/10.1016/j.autcon.2019.102941
评论
检索情况: SCI检索号:000494887600027
关 键 词: BIM; MEP; Geometric model; Storage; Transmission; Display
摘 要:
Mechanical, Electrical and Plumbing (MEP) models are generally characterized by information redundancy and a high density of irregularly shaped components. Consequently, they require large storage spaces and are not conducive for interchange purposes. Geometric optimization of MEP models can play a significant role in facilitating model exchange and handover by increasing storage, transmission and display efficiency. To date, the body of knowledge on such geometric optimization, unfortunately, is still very narrow.
This paper presents and tests a solution for the optimization of storage, transmission, and display of MEP models. Storage optimization was achieved through a mapping-based model description method and a novel Quadric-Error-Metric (QEM) mesh simplification algorithm, reducing required storage while maintaining the contour of components. For transmission optimization, a normal vector compression algorithm and a fixed-dictionary specific compression algorithm were proposed to achieve efficient compression of data thus, fulfilling the need for cross-platform interchange. Display optimization was obtained through a normal vector regeneration algorithm for clustering triangle meshes to improve 3D display effects.
The evaluation of the solution, performed for each individual component separately as well as for an entire solution, proved successful. Volume of storage data was reduced by 40% to 50% through mesh simplification. Data transmission volume was reduced by more than 80% for components with complicated geometry without affecting the topology of the components. Finally, the display process was capable of decreasing the number of triangles and delivering very good quality of displayed models.
下载链接: https://www.sciencedirect.com/science/article/pii/S0926580518309890?via%3Dihub
4 2019
Yu-Wei Zhou, Zhen-Zhong Hu, Jia-Rui Lin, Jian-Ping Zhang. A Review on 3D Spatial Data Analytics for Building Information Models[J]. Archives of Computational Methods in Engineering. 2019, https://doi.org/10.1007/s11831-019-09356-6
评论
检索情况: SCI检索号:
关 键 词: Spatial database, Spatial analysis, Building information model, Interoperability Model checking, Data retrieval, Spatio-semantic analysis
摘 要:
Except for various properties, accurate and intuitive 3D representations of building elements and spaces are embedded in Building Information Models (BIMs). Thus, better understanding of spatial features of building elements and spaces is possible, which brings new opportunity in code compliance checking, indoor navigation, visualization, etc. With large amount of fine-grained 3D spatial data collected quickly and continuously, there is an urgent need for new methods to overcome problems like improper spatial expression, insufficient mining and utilization of information that exist in traditional methods. This research reviews state-of-the-art of related research and provides a summary of achievements and challenges in this area. Then, a framework consists of management, analysis, and application of 3D spatial data of BIM and a detailed discussion of each part are proposed, which would give the readers an overview of relevant methods, technologies, and tools. Moreover, potential research directions and open issues for future work are also discussed. The paper enables researchers to get a comprehensive understanding of 3D spatial data analytics of BIM as well as suggestions for future work, and thus makes a solid contribution in this area.
下载链接: https://link.springer.com/article/10.1007/s11831-019-09356-6
5 2019 评论
检索情况: SCI检索号:000484072600008
关 键 词: evacuation; path planning; neural network; building information modeling; artificial intelligence
摘 要:
Evacuation path planning is of significant importance to safely and efficiently evacuate occupants inside public buildings. Current computer simulation methods carry out evacuation analysis and then provide emergency education and management with a vivid virtual environment. However, efficient evacuation path planning approaches for evacuation guidance still meet the challenges of generating the analysis models, and lacking of real-time analysis methods under dynamic circumstances. In this study, a dynamic path planning approach based on neural networks is proposed for evacuation planning in large public buildings. First, an automatic process to develop the evacuation analysis model with simplified but sufficient information is presented. Then a path generation algorithm is proposed, together with an evaluation process, to generate a number of training sets for policy neural networks. When the primary policy neural network is preliminarily trained, it falls into a self-learning iteration process. Finally, the approach embeds a dynamic algorithm to simulate the mutual influences among all occupants in the building. The neural network was trained according to a real large public building and then the approach managed to provide rapid and feasible evacuation guidance for both occupants to escape in multiple scenarios and managers to design the evacuation strategy. Test results showed that the proposed approach runs 8-10 times faster than existing software and traditional search algorithms.
下载链接: https://www.sciencedirect.com/science/article/pii/S0925231219310306?via%3Dihub
6 2019 评论
检索情况: SCI检索号:000472641200032
关 键 词: BIM; MEP; logic chain
摘 要:
In mechanical, electrical, and plumbing (MEP) systems, logic chains refer to the upstream and downstream connections between MEP components. Generating the logic chains of MEP systems can improve the efficiency of facility management (FM) activities, such as locating components and retrieving relevant maintenance information for prompt failure detection or for emergency responses. However, due to the amount of equipment and components in commercial MEP systems, manually creating such logic chains is tedious and fallible work. This paper proposes an approach to generate the logic chains of MEP systems using building information models (BIMs) semi-automatically. The approach consists of three steps: (1) the parametric and nonparametric spatial topological analysis within MEP models to generate a connection table, (2) the transformation of MEP systems and custom information requirements to generate the pre-defined and user-defined identification rules, and (3) the logic chain completion of MEP model based on the graph data structure. The approach was applied to a real-world project, which substantiated that the approach was able to generate logic chains of 15 MEP systems with an average accuracy of over 80%.
下载链接: ../Files/Resource/ApplSci_2019_Hu.pdf
7 2019
Jia-Rui Lin, Jian-Ping Zhang, Xiao-Yang Zhang, Zhen-Zhong Hu. Automating closed-loop structural safety management for bridge construction through multisource data integration[J]. Advances in Engineering Software. 2019, 128: 152-168.
评论
检索情况: SCI检索号:000465951900012
关 键 词: Structural safety; Closed-loop management; Information modeling; Data integration; Time-dependent structure
摘 要:
Structural safety during construction is vital to engineering success of large scale bridges. However, difficulties in time-dependent structural modeling and data fragmentation of different engineering and management systems remain unresolved, hindering the plan, do, check, and adjust (PDCA) loop for structural safety management during bridge construction. In this paper, an integrated framework for closed-loop management of structural safety based on multisource data integration is presented. The proposed framework consists of a bridge safety information model (BrSIM), algorithms for data integration and semi-automatic time-dependent structural model generation, and methods for structural safety warning and assessment. The proposed BrSIM and algorithms integrate data related to 3D products, schedule, structural simulation and monitoring from various engineering systems, which covers the main data for structural safety management during construction. Meanwhile, automatic calculation and generation of static loads and constraints of a structural model based on 3D product information and monitoring data are also considered. Demonstration in the construction of a longspan bridge shows that with the proposed framework, it is possible to visualize the construction process, generate time-dependent structural models and simulate, monitor and assess the structural safety dynamically. Thus, the structural safety management loop is automated and fully closed. Furthermore, by tracking and simulating the changes of structural performance over time, and comparing the difference between simulation results and monitoring data, earlier detection and better evaluation of potential structural risks are achieved. Moreover, efficiency of information modeling and sharing is improved and effective management and decision-making are achieved with the proposed approach.
下载链接: https://authors.elsevier.com/a/1YNW~3Rf7aq621
8 2018
Yi Zhou, Zhen-Zhong Hu, Wei-Zhong Zhang. Development and Application of an Industry Foundation Classes-Based Metro Protection Information Model[J]. Mathematical Problems in Engineering, vol. 2018, Article ID 1820631, 20 pages, 2018. https://doi.org/10.1155/2018/1820631.
评论
检索情况: SCI检索号:000444139200001
摘 要:
Metro protection is the task of evaluating, detecting, and controlling the potential threats presented by external projects to metro structures. To solve the problems encountered in metro protection work, including the isolation of models, difficulties in information extraction, and lack of data processing methods, this study introduced a building information model/modeling (BIM) technology and proposed a metro protection information model (the MPIM) based on the Industry Foundation Classes (IFC) international data standard and its expansion mechanism. According to the information exchange requirements for metro
protection, the MPIM defines new customized IFC entities, property sets, and enumeration types to express the models in the metro protection domain. Then the conversion methods of the MPIM and other model formats and the information extraction and application technologies are studied. A metro protection system was developed to implement the MPIM-based model integration and provide assist in preliminary evaluation of external projects via information-rich the MPIM. A trial of the system from Guangzhou Metro’s Modiesha Station to Xingangdong Station indicated that the utilization of the MPIM in metro protection workflow could improve working efficiency and save time obviously; management staff claimed that the application of the system saved more than 40% of the time for project evaluation.
下载链接: ../Files/Resource/MPE_2018_Hu.pdf
9 2018
A.U.Weerasuriya, Z.Z.Hu, X.L.Zhang, K.T.Tse, S.Li, P.W.Chan. New inflow boundary conditions for modeling twisted wind profiles in CFD simulation for evaluating the pedestrian-level wind field near an isolated building[J]. Building and Environment. 2018, 132: 303-318.
评论
检索情况: SCI检索号:000428484400028
关 键 词: CFDIsolated buildingPedestrian level wind environmentTwisted wind profilesWind tunnel test
摘 要:
The hilly topography of Hong Kong influences oncoming winds and gradually changes their wind directions along the profiles' height. The vertical variation in wind directions, or the twist effect, significantly influences the Pedestrian Level Wind (PLW) field in urban areas of Hong Kong, thus it is a topic demanding systematic investigations. In this study, a new set of inflow boundary conditions are proposed to model twisted wind flows in Computational Fluid Dynamic (CFD) simulations. The new inflow boundary condition derived based on the horizontal homogeneous assumption, specifies a vertical profile of lateral wind speeds at the inlet boundary to sustain the twist effect in the empty computational domain. The proposed boundary conditions are used to simulate the PLW fields near three isolated buildings with different Height-to-Width ratio using two CFD codes; OpenFOAM, and FLUENT. The results reveal that OpenFOAM is more reliable in simulating PLW fields in twisted wind flows using the new set of boundary conditions. The three-dimensional flow field provided by the OpenFOAM simulation shows sparse streamlines downstream the buildings, indicating lack of organized eddies in the building far wake, which negatively affects the dispersion of air pollutants in twisted winds.
下载链接: https://www.sciencedirect.com/science/article/pii/S0360132318300659
10 2018
Zhen-Zhong Hu, Pei-Long Tian, Sun-Wei Li, Jian-Ping Zhang. BIM-based integrated delivery technologies for intelligent MEP management in the operation and maintenance phase[J]. Advances in Engineering Software. 2018, 115: 1-16.
评论
检索情况: SCI检索号:000416677500001
关 键 词: MEP, BIM, As-built, Operation and maintenance, Facility management
摘 要:
Incomplete building information in delivery and the lack of compatible tools for Operation and Maintenance (O & M) have hindered the development of the intelligent management of Mechanical, Electrical and Plumbing (MEP) systems. In fact, the information related to the O & M management of the MEP system conventionally comes from the completion documents in the forms of hard copies or unstructured digital files, making it hard to search for useful information in the “sea” of documents and drawings. Therefore, digitalization of information is an urgent task to facilitate the intelligent management of the MEP system. As a project deliverable, the as-built information model shall not only contain geometrical information and necessary construction-related data, but also built-in information useful for the intelligent O & M management. In the present study, based on the Building Information Modeling/Model (BIM) technology, a set of solutions including the automatic establishment of the logic chain for MEP systems, an equipment grouping and labeling scheme and an algorithm to transform BIM information to GIS map model, is proposed to digitalize and integrate the MEP-related information into the as-built model. Subsequently, a cross-platform O & M management system is developed using the MEP-related information in the as-built model to run routine O & M tasks and to effectively response to MEP-related emergencies. The developed system is applied to aid the O & M management of MEP engineering in a real project, showing that the developed system facilitates the intelligent O & M management and guarantees the security of the MEP system and its subsystems.
下载链接: http://dx.doi.org/10.1016/j.advengsoft.2017.08.007
11 2017
Yang Peng, Jia-Rui Lin, Jian-Ping Zhang, Zhen-Zhong Hu. A hybrid data mining approach on BIM-based building operation and maintenance[J]. Building and Environment. 2017, 126: 483-495.
评论
检索情况: SCI检索号:000417010000040
关 键 词: data mining, building information modeling, Operation and maintenance, cluster analysis, pattern analysis, outlier detection
摘 要:
Huge amounts of data are generated daily during the operation and maintenance (O&M) phase of buildings. These accumulated data have the potential to provide deep information that can help improve facility management. Building Information Model/Modeling (BIM) technology has proven potential in O&M management in some studies, making it possible to store massive data. However, the complex and non-intuitive data records, as well as inaccurate manual inputs, raise difficulties in making full use of information in current O&M activities. This paper aims to address these problems by proposing a BIM-based Data Mining (DM) approach for extracting meaningful laws and patterns, as well as detecting improper records. In this approach, the BIM database is first transformed into a data warehouse. After that, three DM methods are combined to find useful information from the BIM. Specifically, the cluster analysis can find relationships of similarity among records, the outlier detection detects manually input improper data and keeps the database fresh, and the improved pattern mining algorithm finds deeper logic links among records. Particular emphasis is put on introducing the algorithms and how they should be used by building managers. Hence, the value of BIM is increased based on rules, extracted from data of O&M phase that appear irregular and disordered. Validated by an integrated on-site practice in an airport terminal, the proposed DM methods are helpful in prediction, early warning, and decision making, leading to the improvements of resource usage and maintenance efficiency during the O&M phase.
下载链接: http://www.sciencedirect.com/science/article/pii/S0360132317304444
12 2017
S.W. Li, Z.Z. Hu, P.W. Chan, Gang Hu. A study on the profile of the turbulence length scale in the near-neutral atmospheric boundary for sea (homogeneous) and hilly land (inhomogeneous) fetches[J]. Journal of Wind Engineering & Industrial Aerodynamics, 2017, 168: 200-210.
评论
检索情况: SCI检索号:000408299700019
关 键 词: Field measurement, Near-neutral stability, Spatial correlations, Turbulent length scale
摘 要:
In the present study, the spatial correlation coefficients of wind speeds at different heights in the atmospheric boundary layer under near-neutral conditions are calculated based on field measurements taken by Doppler SODARs. To guarantee near-neutral stability, only measurements associated with relatively high wind strength (wind speeds in the lower boundary layer >10m=s) are used in the calculation. The correlation coefficients calculated from measured data are fitted to those predicted by models to derive a vertical integral length scale. Through investigating the vertical variations of the vertical integral length scale, which is essentially the mixing length, it has been found that (a) the mixing length increases linearly with heights below 70m, which agrees with the predictions from traditional models; (b) traditional models are applicable for predicting the vertical variation of mixing lengths in a near homogeneous sea-fetch wind flow; and (c) mean wind flow stretches the energy-containing eddy to produce larger mixing lengths, and this stretching effect is more prominent in a land-fetch flow.
下载链接: https://doi.org/10.1016/j.jweia.2017.06.008
13 2017
Jianping Zhang, Qiang Liu, Zhenzhong Hu, Jiarui Lin, Fangqiang Yu. A multi-server information-sharing environment for cross-party collaboration on a private cloud[J]. Automation in Construction, 2017, 81: 180-195.
评论
检索情况: SCI检索号:000405536700016
关 键 词: Data ownership and privacy, Cross-party collaboration, Interoperability, Multi-server, Private cloud
摘 要:
Interoperability remains the key problem in multi-discipline collaboration based on building information modeling (BIM). Although various methods have been proposed to solve the technical issues of interoperability, such as data sharing and data consistency; organizational issues, including data ownership and data privacy, remain unresolved to date. These organizational issues prevent different stakeholders from sharing their data due to concerns regarding losing control of the data. This study proposes a multi-server information-sharing approach on a private cloud after analyzing the requirements for cross-party collaboration to address the aforementioned issues and prepare for massive data handling in the near future. This approach adopts a global controller to track the location, ownership and privacy of the data, which are stored in different servers that are controlled by different parties. Furthermore, data consistency conventions, parallel sub-model extraction, and sub-model integration with model verification are investigated in depth to support information sharing in a distributed environment and to maintain data consistency. Thus, with this approach, the ownership and privacy of the data can be controlled by its owner while still enabling certain required data to be shared with other parties. Application of the multi-server approach for information interoperability and cross-party collaboration is illustrated using a real construction project of an airport terminal. Validation shows that the proposed approach is feasible for maintaining the ownership and privacy of the data while supporting cross-party data sharing and collaboration at the same time, thus avoiding possible legal problems regarding data copyrights or other legal issues.
下载链接: http://dx.doi.org/10.1016/j.autcon.2017.06.021
14 2016
Zhen-Zhong Hu, Jian-Ping Zhang, Fang-Qiang Yu, Pei-Long Tian, Xue-Song Xiang. Construction and facility management of large MEP projects using a multi-Scale building information model[J]. Advances in Engineering Software. 2016, 100: 215-230.
评论
检索情况: SCI检索号:000383298800015
关 键 词: Construction management; Facility management; MEP; BIM; Multi-scale
摘 要:
Several challenges have been found in the current applications of building information modelling/model (BIM) technology in large-scale mechanical, electrical and plumbing (MEP) projects, such as the huge modelling workloads of MEP models and details, untapped potential in supporting cooperative construction management with multiple participants and insufficient functions for intelligent facility management. This paper proposes a multi-scale solution to address the insufficiencies of the current applications in the construction and facility management of MEP projects. Particularly, a practical multi-scale BIM consisting of several macro-, micro- and schematic-scale information models is described in detail with the required information of the MEP components according to the schema of industrial foundation classes. Based on this model, the paper presents a BIM-based construction management system to provide virtual construction scenes with appropriate scales for various participants to communicate and cooperate, as well as a BIM-based facility management system to share information delivered from previous phases and improve the efficiency and safety of MEP management during the operation and maintenance period. The application in a real-world airport terminal illustrates that the proposed model and two systems can support collaborative construction management and facility management with multi-scale functionalities among participants. This paper proposes a series of feasible models and techniques to promote BIM application in large MEP projects.
下载链接: http://www.sciencedirect.com/science/article/pii/S0965997816301880
15 2016
A.U. Weerasuriya, Z.Z. Hu, S.W. Li , K.T. Tse. Wind direction field under the influence of topography, part I: A descriptive model[J]. Wind and Structures. 2016, 22(4): 455-476.
评论
检索情况: SCI检索号:000373910800004
关 键 词: descriptive model; hill terrain; wind characteristics;wind-tunnel test
摘 要:
In both structural and environmentalwind engineering, the vertical variation of wind direction is important as it impacts both the torsional response of the high-rise building and the pedestrian level wind environment. In order to systematicallyinvestigate the vertical variation of wind directions (i.e.,the so-called ‘twist effect’) induced by hills with idealized geometries, aseries of wind-tunnel tests was conducted.The length-to-width aspect ratios of the hill models were 13⁄, 1/2, 1, 2 and 3, and the measurements of both wind speeds and directions were taken on a three-dimensional grid system. From the wind-tunnel tests, it has been found that the direction changesandmost prominentat the half heightof the hill. On the other hand, the characteristiclength of the direction change, has been found to increase when moving from the windward zone into the wake. Based on the wind-tunnel measurements, a descriptive model is proposed to calculate both the horizontal and vertical variations of wind directions. Preliminarily validated against the wind-tunnel measurements, the proposed model has been found to be acceptable to describethe direction changesinduced by an idealized hill with anaspectratio close to 1.For the hills with aspect ratios less than 1, while the description of the vertical variation is still valid, the horizontal description proposed by the model has been found unfit.
16 2016
S.W. Li, Z.Z. Hu, K.T. Tse, A.U. Weerasuriya. Wind direction field under the influence of topography, part II: CFD investigations[J]. Wind and Structures. 2016, 22(4): 477-501.
评论
检索情况: SCI检索号:000373910800005
关 键 词: computation; topography; wind characteristics; direction changes
摘 要:
Though hilly topography influences both wind speeds and directions aloft, only the influence onwind speeds, i.e. the speed-up effect, has been thoroughly investigated. Due to the importance of a model showing the spatial variations of wind directions above hilly terrains, it is worthwhile to systematically assess the applicability and limitations of the model describing the influence of hilly topographies on wind directions. Based on wind-tunnel test results, a model, which describes the horizontal and vertical variations of the wind directionsseparately, has been proposedin acompanion paper. CFD(Computational Fluid Dynamics) techniques wereemployed in the present paper to evaluate the applicability of the proposed model. From the investigation, it has been found that the model is acceptable for describing the vertical variation of wind directionsby a shallow hill whose primary-to-secondary axis ratio (aspect ratio) is larger than 1. When the overall hill slope exceeds 20°, the proposed model should be used with caution. When the aspect ratio is less than 1, the proposed model is less accurate in predicting the spatial variation of wind directions in the wake zone in a separatedflow. In addition, it has been found that local slope of a hill has significant impact on the applicability of the proposed model. Specifically, the proposed model is only applicable when local slope of a hill varies gradually from 0 (at the hill foot) to the maximum value (at the mid-slope point) and then to 0 (at the hill top).
17 2016
Zhen-Zhong Hu, Xiao-Yang Zhang, Heng-Wei Wang, Mohamad Kassem. Improving interoperability between architectural and structural design models: An industry foundation classes-based approach with web-based tools[J]. Automation in Construction. 2016, 66: 29-42.
评论
检索情况: SCI检索号:000375630200003
关 键 词: BIM; Data Model; IFC; Model Conversion; Structural Analysis; WebGL
摘 要:
Medium and large construction projects typically involve multiple structural consultants who use a wide range of structural analysis applications. These applications and technologies have inadequate interoperability and there is still a dearth of investigations addressing interoperability issues in the structural engineering domain. This paper proposes a novel approach which combines an industry foundation classes (IFC)-based Unified Information Model with a number of algorithms to enhance the interoperability: (a) between architectural and structural models, and (b) among multiple structural analysis models (bidirectional conversion or round tripping). The proposed approach aims to achieve the conversion by overcoming the inconsistencies in data structures, representation logics and syntax used in different software applications.
The approach was implemented in both Client Server (C/S) and Browser Server (B/S) environments to enable central and remote collaboration among geographically dispersed users. The platforms were tested in four large real-life projects. The testing involved four key scenarios: (a) the bidirectional conversion among four structural analysis tools; (b) the comparison of the conversion via the proposed approach with the conversion via direct links among the involved tools; (c) the direct export from an IFC-based architectural tool through the Application Program Interface (API), and (d) the conversion and visualization of structural analysis results. All these scenarios were successfully performed and tested in four significant case studies. In particular, the conversion among the four structural analysis applications (ETABS, SAP2000, ANSYS and MIDAS) was successfully tested for all possible conversion routes among the four applications in two of the case studies (i.e., Project A and Project B). The first four steps of natural mode shapes and their natural vibration periods were calculated and compared with the converted models. They were all achieved within a standard deviation of 0.1 s and 0.2 s in Project A and Project B, respectively, indicating an accurate conversion.
下载链接: http://www.sciencedirect.com/science/article/pii/S0926580516300152
18 2016
Jia-Rui Lin, Zhen-Zhong Hu, Jian-Ping Zhang,and Fang-Qiang Yu. A natural-language-based approach to intelligent data retrieval and representation for cloud BIM[J]. Computer-Aided Civil and Infrastructure Engineering. 2016, 31:18–33.
评论
检索情况: SCI检索号:000368000100003
摘 要:
As the information from diverse disciplines continues to integrate during the whole life cycle of an Architecture, Engineering, and Construction (AEC) project, the BIM (Building Information Model/Modeling) becomes increasingly large. This condition will cause users difficulty in acquiring the information they truly desire on a mobile device with limited space for interaction. The situation will be even worse for personnel without extensive knowledge of Industry Foundation Classes (IFC) or for non-experts of the BIM software. To improve the value of the big data of BIM, an approach to intelligent data retrieval and representation for cloud BIM applications based on natural language processing was proposed. First, strategies for data storage and query acceleration based on the popular cloud-based database were explored to handle the large amount of BIM data. Then, the concepts “keyword” and “constraint” were proposed to capture the key objects and their specifications in a natural-language-based sentence that expresses the requirements of the user. Keywords and constraints can be mapped to IFC entities or properties through the International Framework for Dictionaries (IFD). The relationship between the user’s requirement and the IFC-based data model was established by path finding in a graph generated from the IFC schema, enabling data retrieval and analysis. Finally, the analyzed and summarized results of BIM data were represented based on the structure of the retrieved data. A prototype application was developed to validate the proposed approach on the data collected during the construction of the terminal of Kunming Airport, the largest single building in China. The case study illustrated the following: (1) relationships between the user requirements and the data users concerned are established, (2) user-concerned data can be automatically retrieved and aggregated based on the cloud for BIM, and (3) the data are represented in a proper form for a visual view and a comprehensive report. With this approach, users can significantly benefit from requesting for information and the value of BIM will be enhanced.
下载链接: http://onlinelibrary.wiley.com/doi/10.1111/mice.12151/abstract
19 2014
Jianping Zhang, Fangqiang Yu, Ding Li and Zhenzhong Hu. Development and Implementation of an Industry Foundation Classes-Based Graphic Information Model for Virtual Construction[J]. Computer-Aided Civil and Infrastructure Engineering, 2014, 29: 60-74.
评论
检索情况: SCI检索号:000328101600006,EI检索号: 20135117104296
摘 要:
Virtual Construction (VC) applications encounter difficulty in sharing and exchanging information with one another due to the long periods of interoperability limitation. To address these issues, an Industrial Foundation Classes-based graphic information model (IFC-GIM) is developed according to the exchange requirement of VC, and using the representations of three models in the IFC schema and its extension by defining the dynamic property set and properties for animation. The three models include the physical object model, the construction information model, and the realistic model. An OpenGL-based VC platform is developed and applied to a 440-m-high building to implement the IFC-GIM. The results demonstrate that the proposed IFC-GIM lays the foundation for data sharing and exchange among VC systems and other IFC-compliant applications, which, in turn, significantly reduces the modeling effort for VC and increases the value of VC results. Furthermore, animation is applied to simulate construction activities by the VC platform in addition to color and transparency, enhancing realistic feelings in 4D applications.
下载链接: http://onlinelibrary.wiley.com/doi/10.1111/j.1467-8667.2012.00800.x/full
20 2011 评论
检索情况: SCI检索号:000288294100009,EI检索号: 20110613654013
关 键 词: Conflict analysis, Structural safety analysis, Construction management, System development, Site trial
摘 要:
In order to achieve the information-based integrated construction management, e.g., time-dependent structures analysis, schedule/resource/cost conflict analysis as well as dynamic collision detection amongst site facilities and main structure elements, an integrated archetypal system named 4D-GCPSU 2009 is developed. Through 3 project examples, it is verified that the integrated solution is able to assist construction managers or owners in the aspects of analysis and management for process conflict and structural safety problems during construction. The application outcome of the system is accepted and praised by users as they considered that the system functions and analysis results provide significant reference support to the approval and revision of construction proposals, increase efficiency and safety concerning building construction. They also point out some difficulties in practice. As for those difficulties mentioned, a series of solutions plus further development orientation are put forth.
下载链接: http://www.sciencedirect.com/science/article/pii/S0926580510001433
21 2011 评论
检索情况: SCI检索号:000288294100008,EI检索号: 20110613654012
关 键 词: Integrated solution, Conflict analysis, Structural safety analysis, Building information model (BIM), Construction management
摘 要:
Strengthening construction safety analysis and management is of great social and economic significance. For a long time, however, there has been a lack of effective management tools in this important area that involves people's lives and property. Based on new developments in the Building Information Model (BIM), four-dimensional (4D) technology, time-dependent structural analysis, collision detection, and so on, a 4D structural information model is presented and established according to the overall solution of analysis and management for conflict and safety problems during construction. Based on this sub-BIM, the integration of dynamic safety analysis of time-dependent structures, conflict analysis and management of schedule/resource/cost, and dynamic collision detection of site facilities is studied, and theories and key technologies are discussed in detail. The results of this research provide a feasible theory and methodology for integrated applications of BIM. Furthermore, this study proposes a new approach for conflict and safety analysis during construction through the integration of construction simulation, 4D construction management, and safety analysis. The approach lays a foundation for the popularization of complicated theories and methodologies, and has theoretical significance and application prospects in meeting the needs of improving the safety level during construction.
下载链接: http://www.sciencedirect.com/science/article/pii/S0926580510001421
22 2011
Zhenzhong HU, Fangqiang Yu, Guoxing LI, et al. An approach to multi-constrained 3D modeling for curtain wall system based on spatial point-line model[J]. Advanced Materials Research. 2011(201-203): 15-23
评论
检索情况: EI检索号: 20111213766743
关 键 词: 3D Modeling, Computer Aided Design (CAD), Curtain Wall, Multi-Constrained, Shenzhen Airport Terminal 3
摘 要:
The accurate spatial 3D models and corresponding coordinates of every key point are needed to determine the sizes, shapes, and locations of installation for all curtain wall elements in the process of production and construction. To solve the transition problems between architectural design and construction design of curtain wall system, four kinds of single-constrained computer-aided 3D modeling algorithm for spatial point-line models were discussed in detail. Then, a multi-constrained iterative 3D modeling process was proposed by considering coupling relationships amongst the various constraints. A 3D modeling system named T3-CW-CAD was developed and applied to the Shenzhen Airport Terminal 3. The application results showed that the presented-algorithm can meet the overall demand for automatically generating multi-layer 3D models according to spatial point-line model, along with sizes and other restraints amongst curtain wall elements, therefore playing a key role in guiding the production and construction of curtain wall system.
下载链接: http://www.scientific.net/AMR.201-203.15
23 2009 评论
检索情况: SCI检索号: 000265605400009,EI检索号: 20091311987370
关 键 词: Visualization, 3D modeling, Computer Aided Design, Animation, Simulation, Construction management, Project management
摘 要:
In this paper, we give a state review of modeling methodologies for four-dimensional computer-aided design (4D CAD) and three-dimensional (3D) animation of operations simulation. We then present our efforts of integrating 4D CAD and 3D animation of operations simulation to facilitate the construction planning of the main stadium for the Beijing 2008 Olympic Games (nicknamed the “Bird’s Nest”). We propose a “zoom” interface between 4D CAD and 3D animation of operations simulation to enable a natural synergy of two separate, but organically linked research streams. For concept proving and application demonstration, we seamlessly integrated two computer systems resulting from previous in-house research to plan and visualize the construction of the “Bird’s Nest” in close collaboration with the main contractor. The integrated construction planning methodology is found instrumental in visually and intuitively conveying the master project schedule and detailed operations plan for construction of the “Bird’s Nest”.
下载链接: http://www.nrcresearchpress.com/doi/abs/10.1139/L08-145
【国内期刊论文】
序号 时间 名称 评论
1 2019
胡振中, 袁爽. 建筑能耗与环境监测系统标准化数据提取技术. 清华大学学报(自然科学版), 2019. DOI:10.16511/j.cnki.qhdxxb.2019.21.037
评论
中文关键词: 能耗监测系统; 标准化; 能耗数据模型; 数据提取
中文摘要:
目前,中国国内的建筑能耗和环境参数监测并未形成统一的标准,不同的能耗监测系统互不兼容,导致绝大部分的建筑能耗与环境监测数据无法有效集成和融合,造成了数据资源的严重浪费.该文首先定义了面向建筑动态监测数据的能耗与环境参数数据模型,并提出了建筑动态能耗数据的提取与集成的方法,同时开发与实现了相应的建筑能耗数据提取软件模块,并在实际工程中进行了验证.最后,对此技术的相关问题和应用前景进行了讨论. 
2 2019
文桥, 张建平, 向雪松, 石涛, 胡振中. 基于GIS的大型公共建筑轻量级运维管理平台研发与应用. 图学学报, 2019, 40(4): 751--760.
评论
中文关键词: 建筑运维管理; 大型公共建筑; GIS; 属性数据标准库; 运维管理标准流程
英文关键词: building operation and maintenance; large-scale public building; GIS; standard attribute library; standard operation and maintenance procedure
中文摘要:
大型公共建筑在商业、办公、旅游、科教文卫、通讯和交通等各个方面都有着不可替代的作用。但大型公共建筑的运维管理信息化平台开发和应用却有一定技术难度。为降低这一难度,提出一种基于GIS的大型公共建筑轻量级运维管理平台研发与应用方法。大型公共建筑图纸通过图形数据转换和编辑,转换为地图服务;大型公共建筑属性数据通过归纳总结,形成层次结构,并赋予唯一标识符,建立属性数据标准库;并以此为基础,梳理大型公共建筑运维管理流程,形成运维管理标准流程和数据流程;通过搭建统一的平台,完成上述4项结果的集成,并投入实际应用。该方法在一座大型机场航站楼进行了实际验证,开发了一套轻量级运维管理平台,实现了该航站楼运维管理的信息化,其结果验证了方法的有效性和可操作性。
英文摘要:
Large-scale public buildings play an irreplaceable role in business, office, tourism, science, education, culture and health, communication and transportation. Due to technical difficulties, large public buildings usually lack operation and maintenance (O&M) management information platforms. To ease these difficulties, this paper presents an application method of lightweight O&M management platform for large-scale public buildings based on GIS. Large-scale public buildings’ drawings are converted into map services through conversion and editing. Attribute data are summarized to form hierarchical structures, and unique identifiers are given to establish standard attribute libraries. Based on these libraries, O&M management processes are reviewed to form standard O&M management procedures and data flows. A unified platform is developed to integrate the above 4 achievements before actual application. This method is tested in a large airport terminal. A lightweight O&M management platform is developed, which realizes the information O&M management of the terminal. The results have verified the effectiveness and operability of the proposed method.
下载链接: http://www.txxb.com.cn/CN/volumn/home.shtml
3 2018
冷烁, 胡振中. 基于BIM的人工智能方法综述. 图学学报, 2018, 39(5): 797-805.
评论
中文关键词: BIM; AI; 综述
英文关键词: BIM, AI, review
中文摘要:
建筑信息模型(BIM)作为建筑领域的新兴技术,正在深远地影响着建筑行业的发展,而人工智能(AI)技术的跨学科应用也日趋广泛。将BIM与AI方法结合,有着良好的可行性与广阔的前景,但目前国内外的相关研究应用仍处于初级阶段。在广泛调研国内外相关研究的基础上,从技术、系统、应用3 个层面,对基于BIM的AI方法相关研究进行综述,介绍该领域常用的AI技术,典型开发平台与开发方法,以及基于BIM的AI方法在设计、施工、运维等各建筑阶段中的成功应用。在此基础上,对该领域存在的问题与挑战加以分析,总结问题原因,并对其未来发展方向加以展望。
英文摘要:
As an emerging technology in the construction field, building information modeling/model (BIM) technology is making profound influence on the development of the construction industry, while the cross-disciplinary application of artificial intelligence (AI) technology has become increasingly widespread. The combination of BIM with AI methods is characterized with good feasibility and broad prospects. However, related research and application at home and abroad are still at the initial stage. Based on extensive literature review, this paper summarizes previous studies on BIM-based AI from the perspective of technology, system and application, and introduces commonly used AI technologies, typical development platforms and methods, as well as the successful applications in different construction stages such as design, construction, operation and maintenance. In this light, the problems and challenges in the field are analyzed, the causes of the problems summarized, and the future direction of development anticipated.
下载链接: http://www.txxb.com.cn/CN/volumn/home.shtml
4 2018
胡振中, 田佩龙, 李久林. 基于IFC的传感器信息存储与应用研究. 图学学报, 2018, 39(3): 522-529.
评论
中文关键词: 建筑信息模型;工业基础类;传感器;监测;信息集成
英文关键词: building information model/modeling; industrial foundation classes; sensor; monitoring; information integration
中文摘要:
在建筑的施工和运维管理过程中,存在大量的传感器采集的数据,但是这些数据存于各自的监测系统中,产生“信息孤岛”局面,难以对其进一步的融合分析,使其产生更大的
价值。建筑信息模型(BIM)技术支持将传感器数据与工程数据集成管理和应用,但是面向 BIM存储的工业基础类国际标准(IFC)对传感器数据的定义和描述仍有缺陷。为此,提出了基于IFC的传感器信息存储方法与应用流程,分析了IFC中与传感器有关的信息描述和关联机制,进而通过自定义属性集的方式扩展了IFC标准,最后以北京槐房再生水厂项目为应用案例验证了IFC扩展内容的有效性。
英文摘要:
There are a lot of sensor data collected in the construction, operation and maintenance of buildings, but these data only existed in the respective monitoring systems, leading to a situation of “information island”, thus the sensor data cannot be effectively used. BIM (building information
model/modeling) technology can implement integrated management and application of sensor data and engineering data. The IFC (industrial foundation classes) standard which is an international standard for BIM storage, is still not sufficient for sensors and their data. In this paper, IFC-based sensor information storage method and application process are presented. Specifically, the description and association mechanism of sensor information in IFC are analyzed, followed by the extension of IFC property set to achieve the storage of such information. Finally, the IFC-based application process of sensor information is described. The proposed methods were applied to the HuaiFang Water Reclamation Plant in Beijing for validation.
下载链接: http://www.txxb.com.cn/CN/volumn/home.shtml
5 2017
张晓洋, 胡振中. 面向结构有限元分析的模型转换方法研究. 工程力学, 2017, 34(6): 120-127.
评论
中文关键词: 土木工程信息技术;建筑信息模型;模型转换;集成化建筑设计;结构分析
英文关键词: information technology in civil engineering; building information model (BIM); model conversion; integrated architectural design; structural analysis
中文摘要:
通过分析当前建筑工程项目模型信息传递中存在的典型问题及应用需求,提出 IFC-API 建筑结构模型转换模式,并结合前期结构分析模型转换框架,形成一套完整的基于 BIM 的面向结构有限元分析的模型转换体系,对解决设计阶段信息断层、提高效率具有重要意义;同时针对模型显示进行优化,扩展研发基于 BIM 的模型转换平台,并通过某一小学教学楼进行实例验证。该研究从理论、技术、应用层面就面向结构有限元分析的模型转换取得突破性进展,也为后续基于 BIM 的时变结构安全性能模拟和分析提供支持。
英文摘要:
Inadequate integration and interoperability are still inflicting an economic burden with the increasing requirement of model conversion between architectural and structural models. This paper presents a novel approach which combines an Industry Foundation Classes (IFC)-Application Program Interface (API) based conversion approach with our previous research on model conversion among different structural analysis models, providing a Building Information Model (BIM)-based model conversion framework towards structural finite element analysis to improve the efficiency within design industry. The approach was implemented in the self-developed BIM-based conversion platform based on the optimization algorithm of model display. The platform was tested in a teaching building to verify the conversion process. This research has made a breakthrough in the theory, technology, and application of model conversion towards structural finite element analysis and has established the foundation for the subsequent research of BIM-based simulation and analysis for time-varying structures.
下载链接: http://gclx.tsinghua.edu.cn/CN/volumn/home.shtml#
6 2016
Xiao Yaqi, Hu Zhenzhong, Wang Wei, Chen Xiangxiang. A mobile application framework of the BIM-based facility management system under the cross-platform structure. Computer Aided Drafting, Design and Manufacturing, 2016, 26(1): 58-65.
评论
英文关键词: facility management; building information model/modeling; mobile application; cross-platform; hybrid application
英文摘要:
The building information model/modeling (BIM) technology is currently applied in a broad range of applications and research for facility management (FM), while the BIM-based mobile FM is difficult owing to various factors and environments. For example, the mobile applications usually require frequent cross-equipment compatibility. This paper proposes a reasonable BIM-based FM cross-platform framework and develops a mobile application on the basis of an existing BIM-based FM system. The developed mobile application is applied in a case study of a metro station project in Guangzhou to verify its effectiveness in FM practice. It helps maintenance staff in viewing BIMs, accessing related information, and updating maintenance records in a unique platform. The test results demonstrate that the proposed BIM-based cross-platform framework meet the FM application requirements and supports the extension of FM functions.
下载链接: http://mall.cnki.net/onlineview/MagaView.aspx?fn=cadd201601*1*
7 2016
刘强, 张建平, 胡振中. 基于键-值缓存的IFC模型Web应用技术. 清华大学学报(自然科学版), 2016, 36(4): 348-353.
评论
中文关键词: IFC标准;建筑信息模型;键-值缓存;数据解析;模型轻量化
英文关键词: industry foundation class(IFC); building information modeling(BIM); key-value cache; data parsing; lightweight model
中文摘要:
近年来,基于工业基础类(IFC)标准的建筑信息模型(BIM)应用技术得到快速发展,但现有的技术和方法难以支持面向互联网的IFC模型对象传输和查询等应用。为实现IFC模型在Web中的应用,该文使用JSON格式建立了一种面向网络的IFC对象模型,使用分布式的键-值存储系统Redis建立了IFC数据的高速缓存,并基于以上对象模型和缓存技术提出了IFC数据的分步、动态解析方法,实现了大容量IFC数据的轻量化、标准化的网络传输和高速动态解析。验证表明:该模型和技术可以支持面向互联网的BIM应用,并且能够大幅提升IFC数据文件的解析效率,可将大容量(超过30MB)IFC文件的解析速度提升1倍以上,具有较高的使用价值和应用前景。
英文摘要:
Industry foundation class(IFC) based building information modeling(BIM) systems has developed rapidly in recent years. However, there are still few methods and tools supporting web-oriented transmissions and querires of IFC model data. This paper describes a web-enabled IFC object model using the JSON format and the IFC data cache with the Redis distributed key-value store for IFC applications in web environment. Stepwise and dynamic parsing of the IFC data enables lightweight, standardized network data transmission with large-capacity, high-spped dynamic parsing of the IFC data. Tests show that the object model and the parsing method are able to support web BIM applications and significantly enhance the efficiency of parsing IFC data files, with double the parsing speed of large (over 30 MB) IFC files.
8 2015
胡振中, 陈祥祥, 王亮, 何田丰. 基于BIM的管道预制构件设计技术与系统研发. 清华大学学报(自然科学版), 2015, 55(12): 1269-1275.
评论
中文关键词: 建筑信息模型(BIM);管道;支架;预制构件;深化设计
英文关键词: building information model(BIM);pipeline;piping support; prefabricated components;detailed design
中文摘要:
随着中国建筑产业化进程的不断推进,管道工程也更多地由现场施工转为工厂预制加工的生产方式,然而当前管道预制构件深化设计技术落后的现状制约了管道工厂化生产和施工的进一步发展和推广应用。为解决此问题,该文针对预制管段、支架及管组等深化设计的具体需求,引入建筑信息模型(Building information model,BIM)技术,提出了一种面向管道预制构件的自动深化设计方法,实现了管道辅助划分、支架半自动设计和管组智能拼装。在此基础上研发了一个通用的管道预制构件智能设计系统,解决了模型可视化、递进式参数化建模以及模型信息共享等3个核心技术问题。该系统应用于2个实际工程项目,验证了所提出的方法和系统应用于管道预制构件深化设计的可行性,表明其能提高设计效率、减少材料浪费。
英文摘要:
The industrialization of China is creating prefabricated pipelines instead of pipeline made on site. However, prefabricated pipeline design methods are not entirely suitable for manufacturing in the factory and assembling on site. A building information model(BIM) isintroduced here for designing prefabricated pipelines. An automatic prefabricated pipeline design method was developed for dividing the pepelines with a semi-automatic design method for pipeline supports and an intelligent assembling method for pipeline groups. A general purpose prefabricated pipeline design system was then developed. The method addresses three core issues for model visualization, progressive parametric modeling and information sharing. The model is applied to two real-world projects to show the enhanced design efficiency and reduced material waste.
9 2015
张晓洋, 林佳瑞, 方继, 杜伸云, 胡振中, 张建平, 梁崇双. BIM技术在石济黄河桥施工安全管理中的应用. 铁路技术创新, 2015(6): 74-76.
评论
中文关键词: BIM;工况管理;安全监控;桥梁施工;信息集成;石济黄河桥;施工安全管理
中文摘要:
研究针对石济黄河公铁两用桥工程体量大、制造精度高、施工工期紧、安全风险高的特点,
探索BIM技术在桥梁施工安全管理方面的创新性应用,重点阐述基于BIM的工况管理、安全监控管理及
分析等内容。研究结果表明,基于BIM进行桥梁的施工安全监测与管理,可实现数据的动态集成及可
视化,有效保障桥梁施工质量和安全,具有较为深远的应用意义和推广价值。
10 2015
胡振中, 彭阳, 田佩龙. 基于BIM的运维管理研究与应用综述. 图学学报. 2015, 36(5): 802-810.
评论
中文关键词: BIM;运维管理;技术研究;应用项目;
英文关键词: BIM; operation and maintenance management; technology research; application project; review
中文摘要:
在建筑物的运营维护阶段中引入BIM 技术可以得到显著效益。尽管近年来相关文献发表数量持续增长,但目前国内外运维阶段的BIM 研究与应用还处于初级阶段。为此在广泛的文献调研的基础上,从技术层面和应用层面对当前国内外BIM 运维的研究和应用现状进行综述,介绍其所涉及的关键技术及相关系统研发现状,进而归纳了已经实现的各种运维功能和项目应用情况。在总结现状的基础上,最后讨论了该领域现存的挑战和瓶颈,并针对性地展望了BIM 运维未来的发展方向。
英文摘要:
Introducing BIM into building operation and maintenance management (O&M management) has significant benefits. Though the number of related literatures keeps increasing in recent years, current domestic and foreign researches and applications on BIM-based O&M are generally in the exploratory stage. Based on a broad literature survey, this paper reviewed domestic and foreign BIM-based O&M researches and applications from the perspective of technology researches and application projects.Relevant key technologies, research status and related system developments were introduced. The functions and project applications were then summarized. Finally the challenges and bottlenecks for BIM-based O&M management, as well as an outlook for future researches were discussed.
下载链接: http://www.txxb.com.cn/CN/Y2015/V36/I5/802
11 2015
胡振中, 李连友, 陈祥祥, 赵红蕊. 基于WebGIS技术的新一代桥梁管理系统研究与开发. 桥梁建设. 2015, 45(4):26-32.
评论
中文关键词: 桥梁管理系统;网络地理信息系统;Voronoi图算法;退化模型;费用模型
英文关键词: Bridge Management System; WebGIS; Voronoi Algorithm; Degradation Model; Cost Model
中文摘要:
桥梁管理系统(BMS)是辅助管理者进行桥梁日常管理,模拟分析和制定决策的管理工具。为解决当前BMS中普遍存在的管理体系不完整、分析和评估模型落后、人机交互体验性较差、维护困难等问题,本研究一方面采用网络地理信息系统(WebGIS)技术以增强数据可视化效果,提高人机交互体验,并解决资源共享等问题,另一方面通过建立科学的退化模型和费用模型以提高桥梁全寿命期分析和评估的准确性。在此基础上,研发了一个原型系统,通过记录桥梁的历史检测数据,挖掘可用信息,对桥梁未来状态以及经济效益进行预测,从而实现对桥梁运维全过程的跟踪、分析和评估。应用表明,基于WebGIS技术的新一代BMS能提高桥梁管理的效率。
英文摘要:
A bridge management system (BMS) is a management toolkit helpingmanagers collect information, conduct modal analysis and devise polices on adaily basis. The current systems, however, exhibit some common problems. Forinstance, the analysis and evaluation models lag the development of the entiresystem, poor human-machine interaction experience and difficult to maintain,etc. In this research, WebGIS technology is adopted to enhance datavisualization, improve the interaction experience, and solve the problem ofresource sharing. On the other hand, improved degradation model and cost modelare proposed to improve the accuracy of lifecycle analysis and evaluation for bridges.Then a prototype of a new generation BMS is developed for the tracking,analysis and evaluation of bridges-in-service by recording the historicinspection data and then mining the useful data to predict the future status ofa bridge. Application shows that WebGIS technology can improve the efficiencyof bridge management.
12 2015
田佩龙, 李哲, 胡振中, 邹东. BIM与建筑机电设备监测信息集成的研究. 土木建筑工程信息技术. 2015, 7(1): 8-13.
评论
中文关键词: 机电设备;运维管理;BIM;监测;集成
英文关键词: MEP; operation and maintenance management; BIM; monitoring; integration
中文摘要:
机电设备的管理是建筑运维管理的重要组成部分,目前多采用建筑机电设备自动化系统实现,其监测信息不能供其它系统有效地共享和利用。利用建筑信息模型(BIM)技术可以实现建筑全生命期的数据共享,然而目前在机电领域BIM的研究和应用大多是利用BIM工具建立含有丰富信息的机电设备模型,在此基础上通过信息查询等手段辅助运维管理,而在对BIM与监测信息集成方面还有待研究。本文通过研究BIM与建筑机电设备监测信息集成方法,建立机电设备监测扩展信息模型,从而充分发挥监测信息的价值,为建筑机电运维的高效管理提供数据支持。
英文摘要:
Management of machine, electric, plumbing (MEP) plays an important role during operation and maintenance management of a building. At present, building automation system (BAS) is the primary mean of MEP management, but the monitoring information of BAS cannot be effectively shared or used by other systems. Data sharing within building lifecycle can be achieved by adopting building information modeling (BIM) technology while most BIM researches and applications for MEP focus on establishing a product model that contains a wealth of information to improve the management efficiency by information inquiries. Few researches in the integration of BIM and MEP monitoring information are reported. By studying the integrated approach of BIM and MEP monitoring information, an extended model of MEP monitoring information can be established based on BIM. The model can provide data to support the operation and maintenance management of MEP, maximizing the value of MEP monitoring information.
13 2013
胡振中, 陈祥祥, 王亮, 余芳强, 王兴坡. 基于BIM的机电设备智能管理系统. 土木建筑工程信息技术. 2013, 5(1):17-21.
评论
中文关键词: 机电设备工程;运维期;建筑信息模型;物业管理;二维码
英文关键词: MEP Engineering;Operation and Maintenance Period;Building Information Model(BIM);Facility Management;Two-dimensional Code
中文摘要:
传统的机电设备运维信息主要来源于纸质的竣工资料,在用到这些信息时,往往要从海量纸质的图纸和文档中去寻找。如何采用电子化手段有效地组织这些信息,以实现设计和施工阶段的有效信息能传递到运维期并辅助运维管理,是当前建筑生命周期管理中需要解决的重要问题。本研究通过引入建筑信息模型(BIM)和二维码技术,开发基于BIM的机电设备智能管理系统(BIM-FIM 2012),实现了机电设备工程的电子化集成交付,以及建筑物运维期的维护维修管理和应急管理,为保障所有设备系统的安全运行提供高效的手段和系统平台支持。MEP Engineering;Operation and Maintenance Period;Building Information Model(BIM);Facility Management;Two-dimensional Code
英文摘要:
Traditionally,operation and maintenance information for MEP mainly comes from completion data in the forms of drawings or documents.When the information is needed,it requires manual searches from such a huge amount of paper files.In order to realize the information transmission from design and construction phases to operation and maintenance period,effectively organization of such information by electronic means is the key issue to be resolved in current building lifecycle management.This can also enhance the information-aided maintenance.By introducing Building Information Model(BIM)and two-dimensional code,a BIM-based Facility Intelligent Management System(BIM-FIM 2012)is developed to realize the electronic integrated delivery of MEP,and to improve the maintenance management and emergency management of a building during its operation and maintenance period.The System also provides an effective way and platform to ensure the safe operations of all MEP systems.
下载链接: http://cpfd.cnki.com.cn/Article/CPFDTOTAL-OGTY201211004050.htm
14 2013
王珩玮, 胡振中, 林佳瑞, 张建平. 面向Web的BIM三维浏览与信息管理. 土木建筑工程信息技术. 2013, 5(3):1-7.
评论
中文关键词: 建筑信息模型(BIM);WebGL;HTML5;B/S;Three.js
英文关键词: Building Information Modeling(BIM);WebGL;HTML5;B/S;Three.js
中文摘要:
BIM服务器为BIM对建筑全生命周期的支持提供了解决方案。目前BIM服务器主要为C/S架构,但B/S架构的优势也渐渐凸显。HTML5标准的发布带来了支持浏览器硬件图形加速的WebGL技术,更带来了一系列划时代的Web技术。从而为实现B/S架构下的BIM信息管理与模型三维浏览奠定了基础。本文分析了BIM的模型信息范围与表达形式,研究了基于WebGL框架Three.js的BIM模型显示技术以及面向Web的BIM信息管理技术,开发了BIM模型三维浏览与信息管理系统。应用表明,系统的图形平台性能稳定,渲染效果较好,能够支持较大的BIM模型。同时,系统为Web客户端提供了丰富的功能支持,更体现了良好的交互特性,因而具有较大的应用价值。
英文摘要:
BIM Server provides a solution for BIM to support construction life cycle.Currently,the structure of BIM Server is C/S,but gradually  B/S also shows its advantages.The release of the HTML5 standard brings the WebGL technology which supports hardware graphics acceleration in browser and is one of a series of revolutionary Web technologies.Thereby the foundation is laid for achieving Web-oriented BIM information management and 3D display of BIM model.In this paper,the model information scope and its expression of Web-oriented BIM is analyzed,and the corresponding information management technology and the BIM model display based on the Three.js,which is a WebGL framework,are studied.Then,a WebGL-based platform for 3D display and information management of BIM is also developed.Application shows that the graphics platform of the platform performs stable with nice rendering for large BIM.Meanwhile the platform provides rich feature supports for Web client by favorable interactive functions,showing a great application value.
15 2013
张建平, 李丁, 胡振中. 一种集成空间分解与占用的精确碰撞检测算法及其在建筑工程中的应用. 工程力学. 2013, 31(5): 79-85.
评论
中文关键词: 碰撞检测;空间占用;空间分解;集成算法;建筑工程
英文关键词: Collision detection; Spatial occupancy; Spatial decomposition;Integrated algorithm; Building engineering
中文摘要:
碰撞检测是建筑工程三维CAD 中行之有效的辅助手段,现代建筑形式复杂、规模庞大,对碰撞检测算
法的效率提出了更高的需求。本文基于空间分解和空间占用这两种应用最为广泛的预处理方法,提出了一种集成、
高效的精确碰撞检测算法。通过工程实例的测试和分析,该集成算法的检测效率优于其他几种算法,且模型量越
大效率优势越明显。本文还针对建筑工程的实际应用需求,对集成算法进行改进,并应用于实际工程,验证了算
法的有效性和鲁棒性。实际应用表明,该集成算法适用于建筑、结构、机电、幕墙等专业设计之间的碰撞检测。
英文摘要:
Collision detection is an effective adjunct for three-dimensional CAD of construction projects. The
complex and large scale modern architectures bring demand for higher efficiency of collision detection algorithm.
Based on the two most widely applied pretreatments, i.e., spatial decomposition and spatial occupancy, an
integrated and efficient accurate collision detection algorithm is proposed. Through the testing and analysis of
project examples, the results show that the proposed algorithm is more efficient than other algorithms, and the
larger the model is, the more obvious its efficiency advantage is. For the actual demand of different construction
projects, the integrated algorithm is also improved and applied to actual projects to verify its effectiveness and
robustness. The practical applications show that the algorithm is applicable to the collision detection between
building structures and MEP (Mechanical, Electrical & Plumbing) engineering.
下载链接: http://t.cn/zTeuk4T
16 2011
王勇, 张建平, 胡振中. 建筑施工IFC数据描述标准的研究. 土木建筑工程信息技术, 2011, 3(4): 9-15.
评论
中文关键词: IFC标准; EXPRESS语言; 信息模型;数据交换; 建筑施工
英文关键词: Industry Foundation Classes, EXPRESS, Information Model, Information Exchange, Construction
中文摘要:
IFC标准是国际协同工作联盟IAI发布的建筑产品数据描述标准,IFC标准提供了建筑产品大部分信息模型的定义和描述。但是,在建筑施工领域IFC标准的模型体系尚不完善,无法完全满足建筑施工IFC数据描述的需求。本文通过对IFC标准的体系结构、数据描述方法、扩展机制和应用流程的系统研究,建立面向建筑施工的IFC数据扩展模型,编制了建筑施工IFC数据描述标准,并通过工程实际应用验证了模型和标准的可行性和适用性,提出了对IFC标准进一步研究和应用的建议。 
英文摘要:
The Industry Foundation Classes (IFC) developed by International Alliance for Interoperability(IAI) has been known as a common product model for data exchange and model sharing. In architecture design,entity types and property sets in IFCs are nearly enough to meet the needs. However,in the construction,entity types are insufficient for data description. Therefore,we analyses the demand for data description in construction in mainland China,and extend the IFC model.At last,we test the extension model by some real projects and give some suggestions for further research.
下载链接: http://www.cnki.com.cn/Article/CJFDTOTAL-TMJZ201104007.htm
17 2010
胡振中, 张建平, 张旭磊. 基于4D施工安全信息模型的建筑施工支撑体系安全分析方法. 工程力学, 2010, 27(12): 192-200.
评论
检索情况: EI检索号: 20110313592236
中文关键词: 4D技术;建筑信息模型;施工过程;支撑体系; 安全分析
英文关键词: 4D technology, Building information model, Construction,Scaffold system, Safety analysis
中文摘要:
建筑施工支撑系统倒塌在我国建筑工程施工安全事故中占很大比例,使施工支撑体系安全分析的研究得到广泛重视。该文通过研究现有的支撑体系安全分析方法,针对其三维建模和对施工期连续时变特性描述和分析等方面存在的不足,引入4D(4-Dimensional,四维)技术和BIM(Building Information Model,建筑信息模型),通过建立4D施工安全信息模型,将支撑体系与施工过程信息动态地链接起来,能快速建立支撑体系的3D模型,并自动生成随进度变化的支撑体系安全分析模型,从而简化支撑体系的力学分析过程,提高了计算精度和效率,为支撑体系的分析计算提供了新的途径和方法。该文还通过一个应用实例,验证了将4D施工安全信息模型应用于施工期支撑体系安全分析的可行性。
英文摘要:
Collapses of scaffold system account for a significant proportion in construction accidents so that safety analysis of scaffold system during construction received wide attention. However, the existing calculation methods have some deficiencies in 3D modeling and time-dependent description. This paper proposed a new safety analysis approach for scaffold system during construction by inducting 4D (4-Dimensional) technology and BIM (Building Information Model). The 4D Construction Safety Information Model, which provides complete information for dynamic connection between scaffold system and construction process information, is presented and established so that 3D models and structural analysis model of scaffold system can be generated rapidly and automatically, therefore the safety analysis process can be simplified greatly. This paper also demonstrates that
safety analysis of scaffold system based on the 4D Construction Safety Information Model is feasible and practical through an application example.
下载链接: http://www.cnki.com.cn/Article/CJFDTOTAL-GCLX201012032.htm
18 2010
胡振中, 张建平, 张新. 基于4D时变空间模型的施工现场物理碰撞检测. 清华大学学报(自然科学版), 2010, 50(6): 820-825.
评论
检索情况: EI检索号: 20103413174294
中文关键词: 施工现场;碰撞检测;4D技术; 时空模型
英文关键词: Construction site, Collision detection, 4D technology, Space-time model
中文摘要:
为满足建筑施工现场安全及管理的需求,构建了施工现场及设施实体的四维时空模型,提出了施工现场物理碰撞检测的算法。该模型以已开发的四维建筑施工现场管理系统为基础,引入四维技术和建筑信息模型,采用边界描述法来准确描述场地设施的三维形体,借鉴层次包围盒的思想。该模型可实时动态地对场地设施之间、场地设施和主体时变结构之间可能发生的物理碰撞进行检测和分析,从而对施工现场进行合理规划和实时调整。
英文摘要:
A 4-D space-t ime model and an improved construction collision detection algorithm were developed for site entities to improve construction safety management. The model uses the hierarchy bounding boxes algorithm and the 4-D technology and building information model(BIM) . The 4-D construction site layout management system accurately describes the 3-D shapes of site entities using the boundary representation (B-rep) method. The algorithm helps managers to dynamically analyze the construction process and avoid collisions between site entities and structural elements to improve the planning and deploym ent of site resources to meet the construction needs.
下载链接: http://www.cnki.com.cn/Article/CJFDTOTAL-QHXB201006004.htm
19 2010
胡振中, 王重力, 李国星. 深圳机场T3航站楼幕墙CAD系统设计. 施工技术, 2010, 39(4): 109-112.
评论
中文关键词: 深圳机场; I'3航站楼;计算机辅助设计; 幕墙; 三维建模
英文关键词: Shenzhen Airport Terminal 3, Computer Aided Design(CAD), Curtain wall, 3D modeling
中文摘要:
深圳机场T3航站楼的幕墙造型采用了自由曲面上参数化造型的设计,建筑设计方使用空间三维坐标点的方式给出了航站楼外表皮的单层单线模型.在进行施工图深化设计时,需根据该模型以及施工图设计过程中所需的各种指导生产/安装的信息,对原数据进行相应的预处理,从而建立符合施工图要求的多层构造的三维模型,并实现图纸输出.笔者开发了集预处理、自动建模、后处理等功能于一体的深圳机场T3航站楼幕墙CAD系统(T3-CW-CAD),旨在提高幕墙施工图设计工作的效率.详细讨论了该系统的需求、数据结构和核心算法.
英文摘要:
The faade of Shenzhen Airport Terminal 3 (T3) is a parametric shaping design based on freeform surface. Architect provides a single layer wireframe model for facade outer skin by listing related spacial point coordinates. During design development,it’s required for facade consultant to pretreat the raw data from architect in order to develop information of guidance for fabrication and construction,and then rebuild a multi-layer 3D model with post-treatment besides drawing output. Thus,based on the raw model and data,a CAD system integrated pretreatment / auto-modeling / post-treatment for curtain wall engineering of T3 ( T3-CW-CAD) is developed to increase the efficiency of drawing designing. The authors discuss the requirements,data structure and core algorithms of the system in detail.
下载链接: http://d.wanfangdata.com.cn/periodical_sgjs201004035.aspx
20 2010
胡振中, 张建平, 路新瀛. 基于建筑信息模型的桥梁工程全寿命周期管理应用框架. 公路交通科技, 2010(9) 增刊: 20-24.
评论
中文关键词: 桥梁工程; 建筑信息模型;全寿命期管理; 三维建模; 施工管理; 耐久性监测;生命周期成本分析
英文关键词: Bridge engineering,Building information mode, Llife-cycle management, 3D modeling,Constructionm anagement, Durability monitoring, Life cycle cost analysis
中文摘要:
首先提出了一个基于BIM的桥梁工程全寿命期管理框架,再针对其中的应用框架层,详细讨论了BIM在桥梁工程中的快速建模、施工管理、耐久性监测和成本分析预测这四个方面的应用前景,提出了主要的功能需求,为开发相应的BIM应用系统给出了方向和提出了建议。
英文摘要:
First, a BIM-based framework for life cycle management of bridges was proposed.Then, according to the application framework layer within the entire framework, four application aspects and functional requirements were illustrated in detail, including BIM-based quick modeling, construction management, durability monitoring, and cost analysis and prediction. Some suggestions for BIM system development were proposed.
下载链接: http://www.cnki.com.cn/Article/CJFDTotal-GLJK2010S1004.htm
21 2009
张建平, 胡振中, 王勇. 基于4D信息模型的施工冲突分析与管理.施工技术, 2009, 38(8): 115-119.
评论
中文关键词: 4D技术; 建筑信息模型; 冲突分析; 施工管理
英文关键词: 4D technology, Building information model, Conflict analysis, Construction management
中文摘要:
在已有的“建筑工程4D施工管理系统”基础上,针对其在施工过程冲突分析方面存在的不足以及实际工程的具体需求,通过对施工进度、资源和成本费用的冲突分析与管理需求进行调研,详细描述相关冲突分析与管理的内容和流程。通过引入4D信息模型解决相应的关键技术问题,建立针对当前状态的静态预警机制和基于趋势预测的动态预警机制,从而改进施工冲突分析与管理的方法。工程实际应用表明,本文所提的方法能帮助施工管理人员把握和分析施工过程中的各种管理冲突,达到预警冲突和辅助决策的目的。
英文摘要:
Based on previous research achievement —4D construction management system, in order to meet specific requirements of real projects and to enhance the construction conflict analysis abilities of the system, the authors firstly summarize conflict analysis needs for schedule management, resource management and cost management during construction by investigation. Then an improved analysis and management approach for construction conflict is proposed by inducting the 4D information model to solve corresponding technical problems , followed by a detailed description of the work flow of conflict analysis and management. The static alert mechanism according to current construction status and the dynamic early2 warning mechanism are illustrated based on prediction information by development trends during construction. Finally, examples of project applications show that the improved approach proposed can help project managers to grasp and analyze various construction conflicts, achieve purposes of conflict early warning and decision2making support.
下载链接: http://www.cnki.com.cn/Article/CJFDTOTAL-SGJS200908055.htm
22 2008
HU Zhenzhong, ZHANG Jianping, DENG Ziyin. Construction process simulation and safety analysis based on building information model and 4D technology. Tsinghua Science and Technology, 2008, 13(S1): 266-272.
评论
检索情况: EI检索号: 20091311987374
英文关键词: Building information model (BIM), Four-dimensional (4D) technology, Structure analysis, Construction simulation, Industry foundation class
英文摘要:
Time-dependent structure analysis theory has been proved to be more accurate and reliable compared to commonly used methods during construction. However, so far applications are limited to partial period and part of the structure because of immeasurable artificial intervention. Based on the building information model (BIM) and four-dimensional (4D) technology, this paper proposes an improves structure analysis method, which can generate structural geometry, resistance model, and loading conditions automatically by a close interlink of the schedule information, architectural model, and material properties. The method was applied to a safety analysis during a continuous and dynamic simulation of the entire construction process. The results show that the organic combination of the BIM, 4D technology, construction simulation, and safety analysis of time-dependent structures is feasible and practical. This research also lays a foundation for further researches on building lifecycle management by combining architectural design, structure analysis, and construction management.
下载链接: http://www.sciencedirect.com/science/article/pii/S1007021408701603
23 2008
ZHANG Jianping, ZHANG Yang, HU Zhenzhong, et al. Construction management utilizing 4D CAD and operations simulation methodologies. Tsinghua Science and Technology, 2008, 13(S1): 241-247
评论
检索情况: EI检索号: 20091311987370
英文关键词: 4D computer aided design (CAD), Simulation, Visualization, Genetic algorithm, Optimization, Construction management
英文摘要:
The paper presents applications of simplified discrete-event simulation (SDESA), and 4D-GCPSU, to the National Stadium of the Beijing 2008 Olympics. Taking into account influential factors, e.g., resource, spatial condition, and the randomness of the construction process, the installation process of the steel-structure was simulated and optimized by using genetic algorithm (GA) optimization methodology. The operations simulation shortened the installation duration by 39 days (about 16% of the original total duration), guided the manufacturers to plan the construction processes, and provided specific suggestions on the entry time of the installation components, resulting in resource allocation optimization, resource saving, and construction efficiency improvement. Combining with the optimized schedule, the 4D visualization environment can discover time-space conflicts timely, and may assist project managers to reschedule the construction activities in tune with the site layout and resource allocation.
下载链接: http://www.sciencedirect.com/science/article/pii/S1007021408701561
24 2008
张建平, 胡振中. 基于4D技术的建筑施工期时变结构安全分析方法及系统设计. 工程力学, 2008, 25(增刊II): 204-212
评论
检索情况: EI检索号: 20090311862461
中文关键词: 4D技术; 时变结构; 安全分析; 建筑施工; 4D施工管理
英文关键词: 4D technology, Time-dependent structure, Safety analysis,During construction, 4D construction management
中文摘要:
建筑施工期结构安全事故频发,使施工期结构安全分析的研究得到广泛重视。现有采用基于概率的分段静态安全分析方法,在对施工期的连续时变描述和计算精度方面存在不足。基于时变结构分析理论的安全分析能更准确地评价施工期结构的安全性能,但在实际应用方面存在着很大的局限性。该文将4D(4-Dimensional,四维)技术引入到建筑施工期时变结构安全分析中,可以为解决时变结构连续动态的全过程分析问题,提供随进度变化的结构模型、完整的数据支持和可视化表现,能简化时变结构的计算过程,提高时变结构建模和安全分析的效率,为时变分析理论的实际应用提供可行的途径和方法。该文论证了将4D技术应用于施工期时变结构安全分析的可行性,提出了4D时变结构安全分析模型和分析方法,开发了基于4D的施工管理和安全分析系统。
英文摘要:
Time-dependent theory has been proven to be more accurate and reliable for safety analysis of structures during construction compared to the traditional static method based on probability. However, applications are restricted in partial periods and partial structures because of the immeasurable artificial intervention. By inducting 4D technology to safety analysis of time-dependent structures during construction, a visualized environment is provided, where the entire analysis data including structure models are accessible
according to the construction schedule. Thus, continuously and dynamically time-dependent analysis is achieved. This idea simplifies the process and enhances the efficiency of structure calculation. This paper demonstrates that the organic combination of 4D technology and time-dependent theory is feasible, proposes the 4D safety analysis model of time-dependent structures and the corresponding method for safety analysis, and presents a system for 4D-based construction management and safety analysis.
下载链接: http://www.cqvip.com/qk/95324x/2008a02/29003928.html
25 2008
胡振中, 张建平, 周毅, 等. 青岛海湾大桥4D施工管理系统的研究和应用. 施工技术, 37(12): 84-87.
评论
中文关键词: 桥梁工程;4D-CAD;4 D施工管理; 青岛海湾大桥; 项目管理系统; 信息模型; 施工进度计划; 动态管理; 可视化模拟; 施工过程
英文关键词: Bridge, 4D2CAD, 4D construction management, Bridge engineering, Qingdao Bay Bridge
中文摘要:
为提高青岛海湾大桥项目的管理水平和效率,项目投资方与清华大学合作,通过研究青岛海湾大桥4D信息模型以及相应的信息集成机制,开发了"青岛海湾大桥4D施工管理系统",并应用于大桥工程的实际施工管理。该系统将桥梁结构的3D模型与施工进度计划和资源信息相互链接,实现大桥施工进度、人力、材料、机械、施工质量的4D动态管理和优化控制,以及整个施工过程的可视化模拟。本研究对于提高青岛海湾大桥工程的施工效率和信息化管理水平,取得了显著的成效。
英文摘要:
In order to enhance Qingdao Bay Bridge project management level and efficiency , Tsinghua University , cooperation with the investors, developed 4D construction management system for Qingdao Bay Bridge by establishing the Qingdao Bay Bridge 4D information model and its information integration mechanism. The system implemented the construction visual simulation and 4D dynamic managements of construction progress, labor, material, machinery and construction quality by the mutual links of engineering model, construction schedule and resources. The experimental results show that 4D technology is supposed to raise information management and improve the efficiency of the Qingdao Bay Bridge project. The research presents a new information management method for bridge construction, and has a high practical value and broad prospects.
下载链接: http://www.cnki.com.cn/Article/CJFDTotal-sgjs200812032.htm
26 2006
郭建峰, 张建平, 胡振中, 等. 基于数据挖掘的智能工程决策平台. 哈尔滨工业大学学报, 2006(9): 1518-1522
评论
检索情况: EI检索号: 20065110316966
中文关键词: 数据挖掘, 决策支持系统, 推理机制, 工程决策
英文关键词: Data mining, Decision support system, Reasoning mechanism, Engineering decisionm aking
中文摘要:
针对传统工程决策支持系统(EDSS)在知识获取和适用范围等方面的固有不足,提出一种将数据挖掘技术与工程决策支持技术进行集成的新机制,介绍相应的智能工程决策平台DM-EDSS的设计和实现.DM-EDSS是一个通用的工程决策支持平台,能够自动从已有的历史工程数据中提取出有价值知识(预测模型或规则),并以此为基础进行决策推理,从而辅助解决工程决策问题.案例研究的结果表明:DM-EDSS从工程数据中提取出的知识对于工程决策有着较高的参考价值,其推理预测的结果具有较高的准确度,能够满足工程实践的使用需求.
英文摘要:
In order to overcome the inherent shortcom ings in know ledge acquisition and applicability of traditional engineering decision support systems(EDSS), a new mechanism that integrates datamining(DM) technology with engineering decision support technologies is proposed and an intelligent decision support plat form for engineering decision makings named DM-EDSS is introduced. DM-EDSS aims to automatically extract useful know ledge (predictive models or rules) from a large amount of historical engineering data, and provide decision supports to solve new engineering problems by reasoning on the extracted know ledge. The results of case study show that the know ledge extracted by DM-EDSS can provide valuable suggestions for engineering decisionm akings, and the reasoning results are of acceptable precisions that can meet the requirements of engineering practices.
下载链接: http://www.cnki.com.cn/Article/CJFDTotal-HEBX200609028.htm
【国际会议论文】
序号 时间 名称 评论
1 2019
Shuo Leng, Zhen-Zhong Hu, Zheng Luo, Jian-Ping Zhang, Jia-Rui Lin. Automatic MEP knowledge acquisition based on documents and natrual language processing. Proc. of the 36rd CIB W78 Conference, Newcast, UK. Sep. 2019
评论
关 键 词: MEP; Knowledge graph; NLP
摘 要:
Mechanical, Electrical and Plumbing (MEP) systems are critical assets in buildings. A series of systematic specifications have been developed and extensive experiences have been accumulated as human knowledge to guide the design and maintenance of MEP systems. However, most of the MEP-related knowledge is represented in the form of unstructured texts and heterogeneously dispersed in the design documents and Internet. It is therefore difficult for managing, querying and utilizing them. To address this challenge, the research study described in this paper constructed a knowledge graph by automatic collecting and storing of MEP knowledge from unstructured data. Specifically, the MEP documents were first acquired from the Internet, and multiple Natural Language Processing (NLP) techniques were then adopted to extract entity and discover relationship from the information documented in these documents. Finally, the knowledge graph was established and presented in a vivid form. The constructed knowledge graph is expected to contribute to the promotion of AI technology in the Architecture, Engineering and Construction (AEC) industry.
2 2019
J.R. Lin, Y.C. Zhou, J.P. Zhang, Z.Z. Hu. Classification and exemplary BIM models development of design changes. Proc. of the 36rd ISARC, Banff, Canada. May. 2019
评论
关 键 词: Design changes; Classification; Building information Modeling; Exemplary model database; Validation
摘 要:
Detection of design changes is essential for collaboration and version management in the design process of buildings. However, current detection methods based on Building Information Modeling (BIM) usually cause unreliable or meaningless results. This is because most of the current researches look at the question from a data change view, which sometimes is meaningless from a designer’s view. To overcome this problem, this paper first classifies and identifies meaningful design changes from a designer's view, and develops exemplary BIM models of typical design changes. In this paper, categories of data changes are divided into property data, appearance data and relationship data, and design changes are classified into instance level, type level and model level from a designer’s view. The test of two BIM tools (Autodesk BIM360 and IFCdiff) with developed BIM models shows that the detection results for changes at instance level are perfect while detection results for type and model level still need to be further improved. This work contributes a new view and classification method of design changes, and also sets up a baseline model database for further development and validation of relevant methods and tools.
3 2018
Ya-Qi Xiao, Zhen-Zhong Hu, Jia-Rui Lin. Ontology-Based Semantic Retrieval Method of Energy Consumption Management. Advances in Informatics and Computing in Civil and Construction Engineering, 2018: 231-238.
评论
4 2018
Shuang Yuan, Zhen-Zhong Hu, Yang Peng. Application of BIM in Environmental Monitoring and Emergency Evacuation Management within Building Operation and Maintenance Phase: A Case Study. Proceedings of 17th ICCCBE, Tampere, Finland. Jun. 2018
评论
关 键 词: Building Information Modeling, Building Operation and Maintenance Management, Environmental Monitoring, Emergency Evacuation Management
摘 要:
The past few decades have witnessed the birth and development of BIM technologies, greatly enhancing the extent, quality and efficiency of the operation and maintenance management of buildings. It is critical that the building managing community is aware of this groundbreaking tool. Traditional operation and maintenance management practices are largely hurdled by the difficulty to retrieve precise, real-time, full-scale and multi-dimensional
building system data, to which a solution is presented by the combination of BIM technologies with sensor systems, which collect data including occupant presence, utility usage, environmental parameters, etc. Additionally, BIM technologies also present managers with a means to query building system information in case of emergencies, such as locating faulty wires or finding shortest path for evacuation. This paper takes a recently constructed building in Shenzhen, China as an example, and looks into how BIM-based management system may exploit sensors implemented inside the building to help exert efficient environmental monitoring, and provide assistance for managing emergency evacuations.
5 2017
Yunyi Zhang, Jiarui Lin, Jianping Zhang, Dongdong Fan, Zhenzhong Hu. How Information Technology Can Improve Construction Management for General Contractor: A Case Study. Proc. of the 3rd ICCBEI, Taibei. Apr. 2017
评论
关 键 词: Information Technology, BIM Application, Case Study, Construction Management
摘 要:
Information technology such as Building Information Modeling, 3D-printing provides an innovative
approach for construction project management, aiming at increasing efficiency, improving quality and reducing
cost. Construction corporations in mainland China are making active attempts to increase the informatization level
in construction projects. This paper discusses Beijing Headquarter building project of Tencent as a case study for
the information technology application in the construction phase in terms of how information technology can
improve construction management for general contractor.
The project for case study is designed as a large public building located in Beijing, with a footprint area
of 334,386 square meters. Considering the complexity of the structure, tight schedule and difficulties in detailed
construction, various of attempts of information technology application have been made in the project, including
4D-BIM integrated management, 3D-printing, construction simulation. These attempts cover schedule, quality,
safety and cost management, resulting in reduction of redundant work, optimized detailed design, improved
efficiency, etc. This paper examines the process of each application and analyzes the necessity of each technique
by comparing the benefits and the devotion. This project won the first prize in “Longtu Cup” national BIM
competition in 2015 and held an exhibition presenting information technology application.
The paper also discusses the value and challenges appeared during the application of information
technology in the case. Information technology application can result in resource and workload reduction, problem
solving in advance and realizing precise management, thus improving construction management for general
contractor. However, promoting information technology application can be challenging at first, given the
management team is not familiar enough with the techniques. Countermeasures are proposed regarding the
challenges and difficulties arose in the case.
6 2016
Yi Zhou, Zhen-Zhong Hu, Xiao-Yang Zhang, Jia-Rui Lin. A BIM-based Safety Monitoring and Analysis System for a High-speed Railway Bridge. Proc. of the 33rd CIB W78 Conference, Brisbane, Australia. Nov. 2016
评论
关 键 词: BIM, High-speed railway, Bridge monitoring, Safety evaluation
摘 要:
Safety monitoring remains a challenging issue in engineering construction although the demand for safety monitoring has reached its peak. This study investigates the innovative application of building information modeling/model (BIM) technology in the safety monitoring of engineering projects. BIM technology provides the design and development of monitoring data interface, the visualization and dynamic integration of monitoring data, security monitoring management, dynamic security analysis, safety prediction, and early warning system for engineering projects. Through the successful implementation in the Xu Huaiyan Bridge project, the validity and feasibility of BIM-based safety monitoring and management in guaranteeing safety and quality in construction were confirmed, thereby proving that it would worthy of further application and promotion.
7 2016
Zhang Xiaoyang, Lin Jiarui, Hu Zhenzhong, Zhang Jianping, Fang Ji, and Du Shenyun. Towards BIM-based Model Integration and Safety Analysis for Brdige Construction. Proceedings of 16th ICCCBE, Osaka, Japan. Jul. 2016
评论
关 键 词: BIM, Data Model, Model Integration, Integrated Application
摘 要:
Construction projects are challenging because of significant investment from various investors. The completion of construction work also requires the collaboration among experts from several disciplines. However, previous works on the integration of information available in the design, construction, and maintenance phases are insufficient. In this study, we initially reviewed the previous studies in this area and then discussed the possible challenges and demands. Afterward, we presented a thorough comparison of different models (i.e., Tekla model as architectural model and Midas Civil model as structural analysis model) and software applications. Then, we proposed a novel approach in which a unified information model and a region-based feature point matching algorithm (RFPMA) were employed to enhance the integration of information available in different phases of a construction project. Furthermore it has been achieved to dynamically integrate the monitoring data and analysis results into the unified inform  model. Finally, we proposed the method and the overall workflow that show how the available information in different phases is integrated. The proposed approach was implemented in a Client Server (C/S) platform and applied in a large real project located at Jinan, Shandong Province, China, which is called Jinan Yellow River Bridge. The application involved several scenarios, including information sharing between Tekla model and Midas Civil model, synchronous model updating and data visualization, and collaborative analysis of the safety level during the construction process. This research has made a breakthrough in the theory, technology, and application of model integration and has established the foundation for safety management.
下载链接: http://www.huzhenzhong.net/Files/Resource/Towards BIM-based model integration and safety analysis for bridge construction.pdf
8 2016
Yang Peng, Zhenzhong Hu. BIM-based Personnel Safety Level Evaluation Approach Using Machine Learning Methods for Public Buildings. Proceedings of 16th ICCCBE, Osaka, Japan. Jul. 2016
评论
关 键 词: building information model; personnel safety; machine learning; decision tree; support vector machine
摘 要:
Ensuring personnel safety is mandatory in the operation and maintenance (O&M) management of large public buildings. Personnel safety hazards should be controlled in the O&M phase. As a crucial step in controlling hazards, the evaluation of the safety level should be based on the most accurate information. However, difficulties arise in such evaluation because of the complexity of variables that influence personnel safety. For this reason, this paper proposes a novel approach for evaluating personnel safety in public buildings. The proposed technique is based on two machine learning methods that apply building information model/modeling (BIM) technology. The proposed framework implements a supervised machine learning process through the following steps: (1) a training set, which is an integration of already known personnel safety levels derived from different sources, such as expert opinion, historical accident records, and attributes of the region, and the necessary data are extracted from BIM; (2) both decision tree and support vector machine are employed to summarize the evaluation rules; (3) evaluation of the safety levels of all regions of the building is performed automatically in accordance with these rules. The outputs would help O&M managers in dealing with each safety hazard. The proposed approach was implemented through a prototype and applied to a real public building, thereby proving that the machine learning methods were accurate and feasible in terms of safety evaluation. The proposed approach provided valuable information regarding safety management during the O&M phase.
下载链接: http://www.huzhenzhong.net/Files/Resource/BIM-based Personnel Safety Level Evaluation Approach Using Machine Learning Methods for Public Buildings.pdf
9 2016
Tianfeng He, Jianping Zhang, Jiarui Lin, Weidong Jia, and Zhenzhong Hu. A Topological and Hierarchical Information Integration Approach for Standard-unit-based Residential Planning. Proceedings of 16th ICCCBE, Osaka, Japan. Jul. 2016
评论
关 键 词: BIM, IFC, Topological information, Hierarchical information, Information integration, Residential plan.
摘 要:
Standard-unit is a residential design template which is concluded from flats sharing the same layout, similar
decorating style, and same kind of furniture and appliances. Conventional way to implement standard-unit is to
use standard design drawings. Such drawings are mainly kept as hard-copies or CAD digital files, which lacks
semantic information and makes it difficult to fully utilize the standard-units. Building Information
Model/Modeling (BIM) technology provides a solution to enhance the implementation of standard-unit. In this
study, we first developed a series of algorithm to extract semantic, topological and hierarchical information from
IFC-files. Then a topological and hierarchical information integration approach was proposed for standard-unitbased residential planning. A prototype database and modeling system were also developed to demonstrate this
approach. Both the database and modeling system were tested with real project data. The application indicates that
the proposed approach can efficiently integrate topological and hierarchical information in the residential project.
下载链接: http://www.huzhenzhong.net/Files/Resource/A Topological and Hierarchical Information Integration Approach for Standard-unitbased Residential Planning.pdf
10 2015
Wang Hengwei, Zhang Jianping, Hu Zhenzhong, Wang Hongdong. BIM-based Onsite Location-dynamic Information Integration and Management. Proc. of the 32nd CIB W78 Conference, Eindhoven, The Netherlands. Oct. 2015
评论
关 键 词: Construction management; collaboration; BIM; metro station; case study
摘 要:
In addition to difficulties in collaboration and information sharing, each of the participants in Hedong metro station in Guangzhou, China, has special BIM-based management requirements during construction Based on a detail field investigation of different requirements from different participants, a series of methods including integrating different parametric 3D models, establishing the construction schedule and the 4D model by attaching each 3D component with a region attribute, and the order sheet method for construction process control were proposed to achieve meticulous construction management for this project. Then, a BIM-based multi-platform construction management system was developed for the owner, the engineering consultant and contractors. The application results show that the proposed methods and system reduced project cost, shortened construction duration, and ensured the safety of construction by contributing to the real-time communication and data exchanges within construction process and enabling tracking project updates and rapidly updating the data of construction activities.
下载链接: http://www.huzhenzhong.net/Files/Resource/BIM-based Meticulous Construction Management for Metro.pdf
11 2015
Pei-Long Tian, Zhen-Zhong Hu, Heng-Wei Wang, Jian-Ping Zhang, Dong Zou. BIM-based Meticulous Construction Management for Metro Station Projects: A Case Study. Proc. of the 32nd CIB W78 Conference, Eindhoven, The Netherlands. Oct. 2015
评论
关 键 词: Onsite localization; BIM; information integration; construction management;
摘 要:
Existing methods for onsite safety and quality management mainly focus on particular purposes such as risk detection, accident warning and quality monitoring, and are limited in construction phase. In order to control the quality and safety on the construction site, inspections with location information are applied to the management process. Existing methods to integrate location information to a reliable data source according to Building information modeling (BIM) technology is to manually input information delivered by hardcopies. However, the unreliable operation process limits the result validity and the efficiency of subsequent management. In this study, a concept called Onsite Inspection BIM is proposed for construction onsite information integration. Then a location-dynamic data collection approach and a location-dynamic onsite management framework are presented. Finally, a prototype system is developed and implemented in the construction of a metro station, demonstrating the feasibility and effects of the proposed solution.
下载链接: http://www.huzhenzhong.net/Files/Resource/BIM-based Onsite Location-dynamic Information Integration.pdf
12 2015
Jiarui Lin, Jianping Zhang, Tianfeng He, Zhenzhong Hu, Fahai Yao. Visualization and automatic verification of a schedule-driven 4D model. 15th International Conference on Construction Applications of Virtual Reality. Proc. of the CONVR 2015, Banff, Alberta, Canada. October, 2015
评论
关 键 词: Four dimensional, Visualization, Model verification, Schedule-driven model
摘 要:
By integrating physical 3D elements with time, 4D technology provides a comprehensive tool to visualize construction sequences as part of an interactive experience. With years of development, 4D technologies were adopted in more and more projects, to improve crew coordination, shorten the construction period, and to reduce request for information. Though research that improves the productivity of 4D tools exists, most studies so far failed to keep synchronization between work schedules and animations and are not capable to verify the 4D model automatically. By evaluating commonly used 4D visualization tools, the pros and cons are concluded in this article. Then, a schedule-driven 4D model is proposed, which consists of physical element model, geometry model, schedule model and visualization model. With this model, different construction operations can be represented by colors, textures, and transformations. What's more, processes for model verification and frame rendering were proposed in this research. Finally, demonstration of this model was implemented in the construction of a cable-stayed truss bridge over the Yangtze River. It is illustrated that with automatic model verification and a better visualization, the proposed model can reduce rework and mistakes. Future improvements of the model are also discussed in this article. 
下载链接: http://www.huzhenzhong.net/Files/Resource/Visualization and automatic verification of a schedule-driven 4D model.pdf
13 2014
Xiao-Yang Zhang, Zhen-Zhong Hu and Heng-Wei Wang, Mohamad Kassem. An industry foundation classes Web-based approach and platform for bidirectional conversion of structural analysis models. Proceedings of 15th ICCCBE, Orlando, USA. Jun. 2014
评论
检索情况: EI检索号:20152701000823
关 键 词: Model Conversion, Structural Analysis, BIM, IFC, WebGL
摘 要:
Projects in the Architectural Engineering and Construction (AEC) industry involve several organizations and practitioners who require sharing very diverse set of information and models. Building Information Modeling (BIM) and open standards such as Industry Foundation Classes (IFC) have made substantial progress in improving the interoperability in recent years. However, inadequate interoperability is still inflicting an economic burden and is considered one of the main limiting factors for BIM adoption. This paper presents an IFC and Web-based approach and tool that enable a bidirectional conversion among structural analysis models. The approach consists of an IFC-based unified information model and a number of algorithms that help overcoming the differences between the data structures and representation logics of different structural analysis technologies. A web-based platform, that utilizes WebGL, was developed to enable the sharing and converting of different building models. The testing of the approach and the platform developed, in a live case study, demonstrated consistency in the conversion process and stability and rendering quality in the display of models over the Web browser.
14 2014
Tianfeng He, Jiarui Lin, Zhenzhong Hu, Jianping Zhang, WeidongJia, Jing Su. BIM-Based Plan Modeling System at Preliminary Stage for Residential Real Estate Projects. Proceedings of 15th ICCCBE, Orlando, USA. Jun. 2014
评论
检索情况: EI检索号:20152701000790
关 键 词: Plan modeling, BIM, Performance analysis, Residential real estate
摘 要:
The preliminary stage of a residential real estate project is of great importance but also is known to be with poor efficiency. However, residential real estate project contains numerous built standard units such as dwelling units and floors. By introducing BIM, this research tapped the full potential of this advantage to improve the performance of the preliminary plan modeling in residential real estate projects. This research proposed a standard-unit-based modeling approach which contains 3 main steps: 1) standard unit management, 2) rapid plan modeling and 3) in-time estimation.By integrating functions such as intelligent standard unit boundary revision, sun analysis, multi-level and information-based model visualization,a prototype system was developed based on this approach, and wasapplied to a real estate project in Xian, China. The results indicate that this approach has the potential to improve the efficiency and quality of preliminary plan.
15 2014
Jian-Ping Zhang, Qiang Liu, Fang-Qiang Yu, Zhen-Zhong Hu. A framework of cloud-computing-based BIM service for building lifecycle. Proceedings of 15th ICCCBE, Orlando, USA. Jun. 2014
评论
检索情况: EI检索号:20152701000695
关 键 词: BIM; Distributed server; Virtual integration; Cloud computing; Building lifecycle;
摘 要:
With the amount increasing, the BIM (Building Information Modeling or Building Information Model) data exchange and sharing face a series ofchallenges includingintegration ofdisparate data models,fast information extraction anddata consistency maintenance. Since the existing BIM data storing and transferring method based on neutral files or a centralized database cannot meet theabove-mentioned requirements, a framework ofdistributedBIMservice on a private cloud platform was proposed. By this BIM service, multi-stage participants store relevant data on their own servers, which arevirtually integratedthrough a CC (cloud computing) platformto form a logically complete BIM. It supports participantsto establish, manageand transfer consistentBIM data efficiently withensuring ofdata privacy.Toachieve this BIM service, a BIM integration and service platform (BIMISP) based on IFC (Industry Foundation Classes) and CC was developed. Proved by experiments, the research achievements are useful for improving the efficiency and quality of information extraction and delivery, ensuring the safety and legality of data sharing during building lifecycle.
16 2013
Jia-Rui Lin, Zhen-Zhong Hu, Jian-Ping Zhang. BIM oriented intelligent data mining and representation. Proceedings of 30th CIB W78 International Conference, Beijing, China, Oct. 2013
评论
关 键 词: Data mining, Semantic analysis, Building Information Model (BIM), Natural Language Processing (NLP), International Framework for Dictionaries (IFD)
摘 要:
Building Information Model (BIM) encompasses mass of data specified by Industry Foundation Classes (IFC)
from multiple fields during the whole lifecycle of the Architecture, Engineering and Construction (AEC) project.
Recently, a large international initiative is launched to provide extensive support that will facilitate the creation,
sharing and integration for BIM through all professions in the AEC industry, while few bend their mind to
intelligent BIM data mining, which will improve the value of BIM. As the Information becoming increasingly
rich and complicated, utilization of the data is getting harder, particularly for personnel without extensive
knowledge of IFC specifications.
This paper proposes a framework utilizing Natural Language Processing (NLP) and International Framework
for Dictionaries (IFD) to address the intelligent BIM data mining problem. First, user requirements depicted with
a sentence of natural language are processed for keywords extraction by NLP. Then, keywords will map to IFC
entities (or properties) through IFD-driven mapping mechanism, providing information for data retrieval. Finally,
the analyzed results of BIM data collected by previous research and application will be represented in accordance
with its format such as tables, charts, animations or combination of them. The framework provides an intelligent
data mining and multi-aspect data representation method for users without any special training, thus enhancing
the applicable value of BIM.
Practical application results in construction management illustrates that with semantic understanding of
his/her intention in natural language, user concerned data will be automatically retrieved, analyzed and
represented in a suitable form, which is of great benefit for corporations without requiring extremely
technological users, facilitating BIM application and enhancing the value of BIM.
17 2012
Zhen-Zhong Hu, Xiang-Xiang Chen, Jian-Ping Zhang, etc. A BIM-based research framework for monitoring and management during operation and maintenance period. Proceedings of 14th ICCCBE, Moscow, Russia. Jun. 2012
评论
关 键 词: Research framework, Monitoring, Informatization management, BIM (Building Information Model), Operation and maintenance
摘 要:
With the deepening research of BIM, BIM applications have been permeated into each phase of the
building life cycles. However, there is less research and engineering application during the operation
and maintenance of property facility management, i.e., lacking of specific feasible solutions.
Combining with actual major projects, addressing to three demands, respectly the durability
monitoring and safety evaluation, the information management of mechanical and electrical
equipment, and the simulation and optimization of airport business processes, how to apply BIM in
the operation and maintenance stage were discussed from following three aspects, namely the
supporting technologies, research contents and anticipated goals, so as to realize the comprehensive
monitoring, simulation, optimization and management of BIM and other modern information
technology. Among the said three application research frameworks proposed in this paper, the BIMbased
durability monitoring in the operation and maintenance period is expected to be applied in
large-sized bridge projects, and the other two have been put into the project approval and application
in an ongoing large airport construction project, which are expected to receive great social and
economic benefits and can be further researched and deeply applied in other similar projects.
下载链接: http://www.icccbe.ru/paper_long/0485paper_long.pdf
18 2012
Xiang-Xiang Chen, Zhi-Huai Li, Zhen-Zhong Hu and Zhao-Pu Shen. Key technical research and platform development of bridge management system. Proceedings of 4th Asia-Pacific Young Researchers & Graduate Symposium, Hong Kong, China. Dec. 2012
评论
关 键 词: Bridge Management System (BMS), WebGIS, Degradation Model, Cost Model, Platform development
摘 要:
Efficient evaluation and maintenance management on bridge during the operation and maintenance period have
always been key issues which bridge maintenance department and municipal bridge management department are
very concerned about. With the development of computer technology, Bridge Management System (BMS) came
into being. However, current systems have some common problems, for instance, incomplete management
systems, backward and inaccurate analysis and evaluation models, weak database functions and imperfect
embodiments of human-computer interaction, etc. In order to solve these problems and aim at researching and
developing a generalized BMS, an approach to life cycle management for bridge, and the detailed workflow are
presented in this paper, followed by establishing a scientific analysis and evaluation model of a bridge. In this
manner, the core technological solutions for BMS based on B/S structure and GIS service are discussed.
According to the above solutions, a prototype system of comprehensive management and evaluation for bridges
is developed, giving a cautiously positive outlook for the new-generation BMS.
19 2012
Jian-Ping Zhang, Jia-Rui Lin, Zhen-Zhong Hu, etc. Research on IDM-based BIM process information exchange technology. Proceedings of 14th ICCCBE, Moscow, Russia. Jun. 2012
评论
关 键 词: IDM, IFC, BIM, Process information exchange, MVD (Model View Definition)
摘 要:
IFC (Industry Foundation Classes) laid the foundation for interoperability with different applications. However, the IFC lacked the specifications for the process, such as where and when the information was created, edited, and exchanged. Determining what and when to share is difficult. Thus, IDM (Information Delivery Manual) was introduced to capture the business process while providing detailed user-defined specifications on the information that need to be exchanged at particular points within a project. However, the development of IDM needs the widespread support of participants who have high professionalism. Thus, the development of IDM lasts long, and the model view of the exchange requirement is difficult to modify, which obstructs BIM (Building Information Modeling) information sharing. In this paper, the technical framework of the BIM process information exchange was proposed based on the relationships among IDM, IFC, and IFD (International Framework for Dictionaries). According to the framework, the basic method for BIM process information exchange, which is composed of process modelling and exchange requirement extraction based on IDM, model view auto-generation depending on natural specification of exchange requirement, exchanging data by the requirement view in a linear sequence, was established. The exchange requirement model view auto-generation application was also developed. Actual practice in the 4D (4-Dimensional) construction management system of the information specified by the exchange requirement view was presented. Application results illustrate that the framework and the method for BIM process information exchange is effective, and helps in the safe, accurate, and highly efficient exchange, sharing, and integration of data.
下载链接: http://www.icccbe.ru/paper_long/0491paper_long.pdf
20 2012
Qiang Liu, Jian-Ping Zhang, Ding Li, Zhen-Zhong Hu. Research on building information modeling and model transformation technology based on the IFC. Proceedings of 14th ICCCBE, Moscow, Russia. Jun. 2012
评论
关 键 词: Industry Foundation Classes (IFC), Building Information Modeling (BIM), Model transformation
摘 要:
This paper focuses on several key technologies in Building Information Modeling (BIM) to provide
the technical route and method for building a high-quality BIM. The paper discusses the direct use of
the Industry Foundation Classes (IFC) data structure in a building information modeling system to
minimize data loss theoretically. This work also addresses the efficiency problem, which is one of the
biggest obstacles in the application of IFC. In this research, the IFC information expression, including
geometry, material definitions, and construction properties, among others, is studied, and a modeling
system based on IFC is developed to build an IFC-represented model. Engineering information, such
as physical quantity, material, schedule, cost, safety, and quality, as well as extensible properties, has
also been added or edited into the previously established model. The paper presents several IFC
model transformation technologies, including model reconstruction of IFC data, solid-to-surface
model conversion, mesh simplification for surface model, and repeating unit simplification based on
mapping. Application of these technologies could improve system efficiency and IFC data
transmission efficiency to a certain extent.
下载链接: http://www.icccbe.ru/paper_long/0492paper_long.pdf
21 2010
Zhenzhong Hu, Jianping Zhang, Xinzheng Lu. Development of a Sub Building Information Model for 4D Structural Safety Analysis During Construction. Proceedings of 13th ICCCBE, Nottingham, UK. Jul. 2010
评论
关 键 词: Structural safety, Building information model, 4D, Construction, Safety analysis
摘 要:
Building Information Model (BIM) is a full-fledged digital framework that models building components and their relationships. As a subset module of BIM, a sub-BIM focuses on a certain field or objective and provides all related building information. Aiming at the unsolved problems of establishing the complete BIM at the beginning of a project, this paper presents a feasible and necessary method for the implementation of BIM applications by combining various sub-BIMs. The research took the National Stadium of 2008 Olympic Game as a case study in which an Industry Foundation Class (IFC) -based sub-BIM, 4D Structural Information Model was developed by combining three smaller sub-BIMs to support 4D structural safety analysis during construction, so that time-dependent structural analysis could be carried out precisely following the construction activities. The case study shows that the proposed method is rational and feasible, and it is an integrated and intelligent method for building lifecycle management.
下载链接: http://www.engineering.nottingham.ac.uk/icccbe/proceedings/pdf/pf90.pdf
22 2008
LIANG Xiong, LU Ming, ZHANG Jianping, HU Zhenzhong. A case study of dynamic construction site facilities modeling in a 4D environment. Proceedings of 12th ICCCBE & 2008 INCiTE, Beijing, China. Oct. 2008
评论
关 键 词: Dynamic Site Layout, Construction Sites, Construction Management, Construction Planning, 4D Construction Management
摘 要:
This paper presents a dynamic construction site layout modeling technique developed to follow an open architecture in a four dimensional (4D) environment. We intend to address the limitations of established two dimensional (2D) site layout planning approaches by processing information of site facilities in three dimensions (3D) and alleviate the difficulties of creating new types of facilities as experienced by existing 3D/4D-based methods. The new modeling technique enables creation and insertion of new types of fa-cilities to the site layout model, driven by the diverse nature of construction sites. In addition, the new tech-nique also seamlessly adds location and progress data in a site layout model.  Its basic architecture and components, including database design, facility components and 4D environments are described. In order to demonstrate its advantages, a case study is presented on how to apply the proposed modeling method at a high-rise building site.
23 2006
Zhen-Zhong Hu, Jian-Ping Zhang, Ming Lu, etc. Simulation and optimization of prefabricated steel-structure installation operations. Proceedings of 1st International Construction Specialty Conference, Calgary, Alberta, Canada. 2006
评论
关 键 词: Construction Plan, Simulation, Optimization, Genetic Algorithm
摘 要:
This research presents a university-industry joint research endeavor in applying simulation modeling combined with genetic optimization to the prefabricated steel-structure installation operations in an ongoing stadium construction project in Beijing. The simulation platform of SDESA (simplified discrete-event simulation approach) resulting from the latest research was utilized to establish the construction process model. By simulating, analyzing and optimizing this process model, valuable and practical recommendations are provided to the contractor and the steel prefabricator, allowing them to reduce the resource utilization, improve the construction efficiency and shorten the project period.
【国内会议论文】
序号 时间 名称 评论
1 2019
吴浪韬, 肖亚奇, 梁雄, 罗征, 胡振中. 基于知识图谱的机电逻辑关系检索. 第五届全国BIM学术会议论文集. 长沙, 中国. 2019
评论
中文关键词: 知识图谱;机电设备;信息检索
中文摘要:
建筑设备运维管理期间会涉及海量专业信息,其中大量信息与机电系统相关。然而,由于目前这些信息的储存于表示并不利于计算机进行处理,因此在涉及到机电设备管理的各方面工作中,仍然需要借助专业人士的经验积累。本研究针对上述问题,引入了知识图谱对其进行优化尝试,构建了建筑机电领域的一个知识图谱原型,并将其应用于一个案例中,取得了较好的效果。
2 2019
袁爽, 胡振中. 建筑大数据处理技术应用案例分析. 第五届全国BIM学术会议论文集. 长沙, 中国. 2019
评论
中文关键词: 大数据;MEP;能耗监测;存储优化
中文摘要:
随着建筑行业的发展和大数据时代的来临,建筑生命周期中产生和涉及的数据量也不断增加,依赖传统的数据处理手段已经无法满足数据处理的需求。因此,将大数据处理的相关技术引入建筑行业并加以应用刻不容缓。本文以大型建筑MEP模型的存储优化技术和能耗监测大数据的提取技术为例,讨论大数据处理技术在建筑行业中的具体应用。
3 2018
冷烁, 梁焘, 黄威然, 胡振中. 基于数据挖掘和BIM的盾构机地层预测技术研究. 第四届全国BIM学术会议论文集. 合肥, 中国. 2018
评论
中文关键词: 盾构机;地层;数据挖掘;BIM
中文摘要:
盾构机所处地层信息对指导盾构施工具有重要意义。目前,人们对工程地质的了解主要来自于事前钻孔勘探,成本较高且在地层复杂时难以满足精度需求。本研究借助数据挖掘技术,由盾构机监测数据构造分类模型,实现了对盾构机所处地层的实时预测。同时,本文进一步引入BIM技术,对预测结果进行自动建模与可视化展示。经实例验证,地层预测结果具有较高精度,可作为勘测信息的有效补充,为盾构施工提供信息参考。
4 2018
周一, 胡绮琳, 胡振中. 基于BIM的地铁保护系统研究与开发. 第四届全国BIM学术会议论文集. 合肥, 中国. 2018
评论
中文关键词: 地铁保护; 建筑信息模型;数据分析
中文摘要:
地铁站周边往往是开发的热点和重点区域,大量的外部项目施工会对地铁运营造成影响。“地铁保护”正是专门评估、发现并控制外部项目对于地铁结构的潜在威胁的工作。针对当前“地铁保护”工作中模型杂乱、信息提取困难、数据处理分析手段有限等问题,本研究引入BIM技术,开发基于BIM的地铁保护系统,通过富含信息的BIM模型为地铁保护的评审、巡检提供支持。在广州地铁磨碟沙至新港东站的试用中表明,BIM技术的引入能够达到提高地保工作效率、节省时间成本的效果。
5 2017
王石雨, 胡振中, 田佩龙, 李久林. 基于BIM和监测数据的水厂水位动态模型及其应用研究. 第三届全国BIM学术会议论文集. 上海, 中国. 2017
评论
中文关键词: BIM;IFC;监测;运维管理;水位动态模型
中文摘要:
在再生水厂的运行过程中,可能发生来水量骤增等不利情况,如果对再生水位各区域的水位调控不当,内部机电设备将会被水淹没,进而影响整个水厂的运转,造成重大损失。本研究针对以上问题,基于IFC标准和监测数据,结合人工神经网络算法实现再生水厂来水量预测,并建立计算模型实现水厂各区域水位的动态模拟预测和分析,最后,基于课题组已有的BIM-FIM平台开发基于BIM的水厂水位控制系统,提高水厂的运维效率。
6 2017
袁爽, 胡振中, 田佩龙. 面向智能运维的室内照明系统研究. 第三届全国BIM学术会议论文集. 上海, 中国. 2017
评论
中文关键词: 智能运维;照明系统;信息物理系统;模式识别;建筑信息模型
中文摘要:
本文面向建筑物智能运维,根据信息物理系统的架构,设计了一套智能照明系统解决方案。首先提出利用传感器系统实现信息采集,并利用可编程智能照明设备作为实现器。然后,提出基于被动学习策略的改进的聚类分析算法以及改进的SIFT算法,来进行用户的模式识别,并使系统对用户行为具有适应性。最后,设计了一个基于HTTP的网络系统和基于BIM技术的实时展示系统,并对该系统进行了实现并进行了测试,证明效果具有可行性。
7 2016
彭阳, 胡振中. 应用离散傅里叶变换的BIM监测数据智能分析和展示. 第二届全国BIM学术会议论文集. 广州, 中国. 2016
评论
中文关键词: BIM;监测;离散傅里叶变换;MATLAB
中文摘要:
绿色建筑和智能建筑中都安装有大量建筑性能数据的监测器,这些监测数据一般在长期的时间跨度存在周期规律。本研究以BIM为基础数据源和可视化平台,通过离散傅里叶变换这一数学工具,对集成至BIM的建筑监测数据进行了时间多尺度和空间多尺度的分析,最后运用多种方式展示分析结果。在MATLAB中进行了监测数据的离散傅里叶分析。应用BIM和MATLAB实现了监测数据可视化。然后定制开发了BIMStar中的对应功能模块,应用于实际的工程,为建筑运维管理提供了应用平台。
8 2016
田佩龙, 胡振中, 王珩玮, 张建平, 邹东. BIM在地铁项目精细化施工管理中的应用案例研究. 第二届全国BIM学术会议论文集. 广州, 中国. 2016
评论
中文关键词: 施工管理;协作;BIM;地铁;案例研究
中文摘要:
地铁项目各参与方在施工管理过程中,面临着工作协同和信息共享等方面的困难,同时,各参与方也有着不同的BIM管理需求。该研究首先对各参与方的需求进行了详细的调研,针对这些需求,提出了参数化模型整合方法,基于空间属性的4D模型建立方法,基于派工单的施工过程管控方法等一系列基于BIM的施工过程管理方法,实现地铁施工的精细化管理。面向业主方、监理方和施工方,开发了基于BIM的多平台施工管理系统,并在鹤洞地铁站项目施工管理过程中进行应用。应用结果表明,基于BIM的施工管理方法和系统能够促进施工过程中信息共享与交流,使得各参与方及时跟踪施工现场的最新动态,从而减少工程成本,缩短建设周期,保证施工安全。
9 2016
王珩玮, 王洪东, 胡振中, 张建平. 基于BIM的施工现场质量安全动态管理. 第二届全国BIM学术会议论文集. 广州, 中国. 2016
评论
中文关键词: 施工现场;BIM;质量安全;现场定位
中文摘要:
目前已有的施工现场质量安全管理的目的性较强,如风险发掘、事故预警以及质量监测等。并且绝大多数局限于施工阶段,成果应用并不面向全生命期。为了控制施工现场的质量与安全,基于信息定位的现场检查技术已经被应用于施工管理过程中。目前将位置信息与类似BIM的完备数据源进行关联主要通过人工录入这种低效与不可靠的方式进行,在对进度与成本有较高要求的施工管理中难以令人接受。本文针对施工现场质量与安全管理的需求,为了解决其中信息集成的问题,提出了现场检查BIM的概念。同时,提出了基于BIM的现场非固定信息采集方法与现场非固定问题管理框架。最终,该理论的原型系统被应用于广州地铁项目中,并且取得了值得肯定的成果。 
10 2015
田佩龙, 庄亮东, 孟欣, 胡振中. 基于BIM的停车场动态模型研究. 第一届全国BIM学术会议论文集. 北京, 中国. 2015
评论
中文关键词: BIM;停车场;动态模型;拓扑模型
中文摘要:
因驾驶员对停车场内部状况缺乏了解造成停车困难的现象时有发生,同时,现有的停车场管理系统不能与建筑内其他系统进行有效的信息共享。BIM技术的出现为解决这些问题提供了新的途径。通过研究基于IFC的停车场内部道路拓扑模型自动生成方法,停车位动态信息获取与集成方法,最优路径生成方法等,建立基于BIM的停车场动态模型。同时,开发基于BIM的停车场智能管理原型系统,实现了车辆出入库管理、车位状态的可视化显示、泊车引导等。
下载链接: http://www.huzhenzhong.net/Files/Resource/基于 BIM 的停车场动态模型研究.pdf
11 2008
胡振中, 张建平. 基于子信息模型的4D施工安全分析及案例研究. 第六届全国土木工程研究生学术论坛论文集. 北京, 中国. 2008 (优秀论文, 第八届中国土木工程学会优秀论文鼓励奖)
评论
中文关键词: 建筑信息模型; 4D技术; 施工过程; 安全分析
英文关键词: Building information model, 4D technology, Construction process, Safety analysis
中文摘要:
针对目前建筑活动中,建筑设计、结构分析以及施工管理相对独立,从而制约建筑施工期安全管理的问题,本研究通过引入建筑信息模型的概念,结合成熟的4D施工管理技术,提出基于子信息模型的4D施工安全分析方法。其中,为解决建筑全信息模型无法在生命初期一次建立的困难,本文提出面向特定领域或对象,通过抽取相关的核心信息并建立子信息模型的新方法,并描述了四个子信息模型:基本建筑信息模型、4D信息模型、结构信息模型以及4D施工安全信息模型。本研究通过建立“国家体育场”工程的4D施工安全信息模型,并应用于4D施工过程的安全分析,实现了基于工序的结构体系计算。结果表明,基于子信息模型和4D技术的施工过程安全分析,能大大减少施工管理和结构建模的工作量,为施工过程安全分析理论的实际应用探索了可行的途径和方法。
英文摘要:
To address the issues of constraining construction safety management caused by relative independence of architectural design, structural analysis and construction management, the research introduced the concept of building information model (BIM), and 4D construction management to construction safety analysis applications. To solve the problems of establishing the complete BIM at the beginning of a project, the paper presents a new concept of sub-BIM by focusing on specific domain or subjective, extracting kernel information. The paper also describes four sub-BIMs, namely Basic Information Model, 4D Information model, Structural Information Model and 4D Construction Safety Information Model. The research took the National Stadium as a case study that 4D Construction Safety Information Model was established to support 4D construction safety analysis. The case demonstrates that sub-BIMs are feasible and rational for reducing the workload of construction management and structure modeling, supporting the effective implementation of construction safety analysis.
12 2007
张建平, 胡振中. 基于4D信息模型的建筑施工安全分析. 第十届全国建设领域信息化技术与应用交流会论文集, 桂林, 中国. 2007
评论
中文关键词: 4D信息模型; 时变结构; 安全分析; 建筑施工
英文关键词: 4D information model, Time-dependent structure, Safety analysis, Construction
中文摘要:
由于建筑在施工期结构安全事故频发,已经引起人们和政府部门对建筑工程施工期安全问题的高度重视,探索更为科学、精确的施工期建筑结构安全分析方法也成为当前的研究热点。本文在总结现有施工期时变结构安全分析方法的基础上,引入4D-CAD和建筑信息建模技术,提出了基于4D信息模型的施工期安全分析模型和系统架构。通过4D信息模型,将4D技术与建筑信息模型结合并应用到建筑施工期时变结构的安全分析,能契合“时变”内涵,大大简化分析过程,实现从设计阶段到施工阶段的信息交换和共享,并能对建筑施工期时变结构的安全分析过程进行4D可视化动态模拟。
英文摘要:
The safety problem of building during construction is attached importance to both people and government due to frequently accidents. As a result, seeking after more scientific and accurate methods of safety analysis during construction has become an emergent research area. By inducting 4D-CAD and building information modeling technologies, a safety analysis model and system framework were proposed in this paper based on the summarization of current analysis methods. Through 4D information model corresponding to time-dependent connotation, the process of analysis is prominently simplified and the goal of exchange and communion of information during design period and construction period is achieved together with 4D visualized simulation.
下载链接: http://www.chinabim.com/school/cm/2010-03-07/607.html
13 2006
张建平, 胡振中, 郭建锋. 中国建筑业科技发展的问题与对策. 第九届全国建设领域信息化技术与应用交流会论文集, 威海, 中国. 2006 (特邀报告, 优秀论文)
评论
中文关键词: 建筑业;科技发展;问题与对策
英文关键词: Construction industry, Science and technologies development, Difficulties and countermeasures
中文摘要:
建筑业是我国的支柱产业之一。然而,与发达国家相比,我国建筑业仍属于劳动密集型的粗放型产业,生产效率低,整体科技水平不高。本文立足于我国建筑业当前状况,从多方面、多角度思考了我国建筑业在科技发展、成果转化、推广应用中存在的问题,再结合我国具体国情,借鉴先进国家建筑业科技发展和推广过程中的经验,提出若干对策。
英文摘要:
The construction industry is one of the foundational industries in China. However, compared with some advanced countries, it is still a labor intensive industry and of low productivity. This paper raises the difficulties of science and technologies development, implementation technology and industrialization technology in building industry based on the current status of construction in China. Then experiences from advanced countries are used for reference and some countermeasures are presented.
14 2006
张建平, 胡振中. 建筑施工企业信息化管理系统框架. 第二届中国国际数字城市建设技术研讨会论文集, 苏州, 中国. 2006 (特邀报告)
评论
中文关键词: 建筑施工企业; 管理模式;信息化管理系统; 框架
英文关键词: Construction enterprise, Management mode, Information management system, Framework
中文摘要:
本文基于对当前建筑施工企业管理现状的分析,通过对国内建筑施工企业组织体制、管理方式、工作流程以及信息化现状的研究,结合先进的管理模式和信息技术,提出了建筑施工企业信息化的总体框架以及系统实现的关键技术。该框架可用于指导建筑施工企业信息化管理系统的规划和实施,也可为制定我国建设领域信息化发展的相关策略提供参考。
英文摘要:
The framework of an information management system for construction enterprise integrated with the advanced management mode and potential information technologies has been established, based on extensive field investigations and analysis for the organization system, management mode, work flow and information management status of construction enterprises. The framework can be used to guide the design and implementation of information management system for construction enterprise. This study should also provide some references to make relative policies for promoting the application of information technology in the construction industry in China.
15 2005
张建平, 郭建峰, 胡振中. 国外建筑业科技创新现状及发展. 第八届全国建设领域信息化与多媒体辅助工程学术交流会论文集, 承德, 中国. 2005
评论
中文关键词: 建筑业; 科技创新; 应用现状; 发展趋势
英文关键词: the Construction Industry, Science and technologies, Current status, Development trend
中文摘要:
建筑业是我国的支柱产业之一。然而,与发达国家相比,我国建筑业还属于劳动密集型的粗放型产业,生产率低,整体科技水平不高。了解国外建筑业科技创新现状和发展趋势,对于把握我国建筑业发展方向,以迎接信息技术和知识经济带来的挑战,提升国家、行业和企业的竞争力,具有重要意义。
英文摘要:
The construction industry is one of the foundational industries in China. However, compared with some advanced countries, it is still a labor intensive industry and of low productivity. In order to meet the challenges brought by information technologies and knowledge-based economy, and promote the competition ability of China’s construction industry, it is of crucial importance to survey the current status and development trends of science and technologies in the global construction industry.
【编著/论著】
序号 时间 名称 评论
1 2014
赵昕等. 中国建筑施工行业信息化发展报告:BIM应用与发展.北京:中国城市出版社. 2014
评论
中文关键词: 中国建筑施工行业信息化发,BIM应用与发展
2 2011
胡振中. 基于BIM的建筑生命期安全分析与管理技术研究. 博士后出站报告. 深圳: 清华大学研究生院. 2011
评论
中文关键词: 建筑生命期管理,建筑信息模型,协同设计,施工安全,耐久性监测,运营期管理,工业基础类
英文关键词: Building lifecycle management (BLM), Building information model (BIM), Collaborative design, Construction safety, Durability monitoring, Operating management, Industrial foundation classes (IFC)
中文摘要:
在建筑业高速发展的今天,建筑业的低效率问题和浪费现象却越来越明显。为了统筹建筑生命期各个阶段所产生的海量信息和多元化应用需求,引入BIM(Building Information Model,建筑信息模型)的理念和技术,应用于BLM(Building Lifecycle Management,建筑生命期管理)具有重大的社会和经济意义。尽管近年来已经有了应用BIM技术的众多实际工程项目和案例,也取得了一些让人欣慰的成果,然而,BIM技术的发展,以及BLM的全面实现,依然任重道远,这也意味着还需要对涉及到的众多关键技术进行一项一项地深入研究和重点突破。
本研究通过引入BIM技术,面向建筑生命期的安全分析和管理,提出了基于BIM的BLM框架,并参照IFC(Industrial Foundation Classes,工业基础类)国际标准,研究了BIM的IFC描述。在此基础上,通过引入碰撞检测算法、时变结构分析、耐久性监测、离散事件模拟算法等领域的知识和最新成果,面向建筑生命期中安全分析和管理的四个典型应用,即1)BIM的建立和共享;2)面向安全性能的协同设计;3)施工过程安全分析与管理;4)运维期监测与管理,系统地研究了实现的理论、方法、技术,以及探讨了在研的一些内容与展望,并通过一些工程实例对其可行性和有效性进行了验证。
本研究的成果表明:通过引入BIM技术,可以将建筑生命期内产生的信息统一管理起来,为建筑生命期安全分析和管理提供新的思路和工具,从而解决信息孤岛、信息断层等信息共享难、流通难的问题。研究成果对于提高建筑生命期安全性能以及推动土木工程信息技术的发展,尤其是确保安全信息的一致性,提高安全信息利用的效率,具有理论意义和应用前景。
英文摘要:
Though the construction industry is developing rapidly today, low efficiency and labor waste have become increasingly obvious. In order to co-ordinate the huge amounts of information and diverse application requirements emerged during every stage of the building lifecycle, it is of great social and economic significance to introduce the concept of Building Information Model, BIM for short, to Building Lifecycle Management, BLM for short. Although in recent years, there have been some successful BIM applications of many engineering projects with some delightful achievements, BIM technology, as well as the full realization of BLM is still long way to go, which also means that many key technologies involved need a thorough study and some major breakthroughs.
By introducing BIM technology and for safety analysis and management within building lifecycle, this study proposed a BIM-based BLM framework, as well as IFC (Industrial Foundation Classes) descriptions of several BIMs according to the IFC schema. Then based on the newly developments in collision detection algorithms, time-dependent structural analysis, durability monitoring, discrete event simulation algorithm and so on, four typical safety analysis and management applications within different stages of the building lifecycle are discussed in detail, namely 1) the establishment and sharing of BIM; 2) safety-oriented collaborative design; 3) safety analysis and management during construction; and 4) monitoring and management during operation and maintenance period. Also, all the theories, methodologies and technologies involved, as well as some on-going researches and future directions are discussed. Finally, the feasibility and effectiveness are verified by some real projects.
The results show that information generated during the building lifecycle can be unifiedly managed by the help of BIM. This provides new management ideas and tools for safety issues within building lifecycle, to solve problems of information sharing and delivering, such as information island and information fault. The meaningful and promising results may improve safety performance within building lifecycle and accelerate the informalization of construction industry, especially in the aspects of ensuring the consistency of safety information and improving the efficiency of safety information use.
下载链接: mailto:huzhenzhong@tsinghua.edu.cn
3 2009
胡振中. 基于BIM和4D技术的建筑施工冲突与安全分析管理. 博士学位论文. 北京: 清华大学. 2009
评论
中文关键词: 建筑信息模型,4D管理,结构安全,冲突分析,建筑施工
英文关键词: Building information model (BIM), Four dimension management (4D management), Structure safety, Conflict analysis, Construction
中文摘要:
建筑业是我国职业安全事故率仅次于采矿业的工业部门,事故起数和死亡人数居高不下。因此,加强施工期冲突与安全分析管理,具有重大的社会和经济意义。然而长期以来,这个涉及人民生命财产安全的重要领域,一直缺乏科学、有效的管理工具。如何从根本上改变这一落后局面,以新的理论和管理方法为手段,实现建筑项目的现代化集成管理已经成为目前亟待解决的关键问题。
基于上述需求,本研究综合应用建筑信息模型(Building Information Model,BIM)、4D技术、时变结构分析、过程模拟、预测评价和碰撞检测等领域的知识和最新成果,面向设计和施工阶段的信息共享和重用,描述了施工过程冲突和安全分析管理的总体需求和整体解决方案,提出了建筑子信息模型(sub-Building Information Model,sub-BIM)的概念,并建立了4D施工安全信息模型。基于此sub-BIM,着重研究了施工过程时变结构和支撑体系的动态安全分析、进度/资源/成本费用的冲突分析与管理、以及场地设施碰撞检测的相关理论和关键技术,并详细论述其实现的流程与集成方法。在此基础上,进行了应用系统的需求分析、功能设计、架构设计、数据库设计以及程序设计,采用面向对象编程方法开发了基于BIM的建筑工程4D施工管理及安全分析系统(4D-GCPSU 2009),并通过工程实例对系统的可行性和有效性进行验证,从而为施工现场提供新的安全分析手段和管理工具。
本研究的成果表明:通过引入BIM和4D技术,建立4D施工安全信息模型,可实现建筑设计、结构分析和施工管理三个领域的信息共享与集成管理,为BIM的创建和集成应用探索了可行的理论和方法。同时,本研究能将建筑施工过程模拟、4D施工管理和施工过程安全分析集成,为解决建筑施工冲突与安全问题提供新的理论、方法和技术,为复杂理论和方法的工程应用奠定技术基础,对于满足建筑安全生产的实际需求,改变建筑施工安全管理手段落后的局面,提高安全水平具有重要理论意义和广阔的应用前景。
英文摘要:
The accident rate of building industry and the numbers of accidents and deaths remain high. It is of great social and economic significance to strengthen the construction safety analysis and management. However, there has been a lack of scientific and effective management tool for a long time in this important area that involves people's lives and property. It has become an important problem demanding prompt solution to achieve the information-based integrated construction management by new theories and approaches in order to change the backward situation fundamentally. 
In view of the current situation, for the purpose of information sharing and reuse between design and construction phases within building lifecycle, based on newly developments in Building Information Model (BIM), 4D technology, time-dependent structure analysis, construction simulation, collision detection and so on, the concept of sub-Building Information Model (sub-BIM) is proposed and the 4D Construction Safety Information Model is described and established according to the overall solution of analysis and management for conflict and safety problems during construction. Based on this sub-BIM, the integration of dynamic safety analysis of time-dependent structure and scaffold system, conflict analysis and management of schedule/resources/ cost, and collision detection of site facilities is studied. Theories and key technologies for the integration mechanism are detailed discussed. Then a BIM-and-4D-based analysis and management system for conflict and safety problems during construction named 4D-GCPSU 2009 is developed. By real project-applications, the feasibility and effectiveness of the system are verified to be a new tool for construction management, providing new safety analysis approaches. 
The achievements of this research have indicated that through the establishment of the 4D Construction Safety Information Model by inducting BIM and 4D technology, information sharing and integrated management among three areas, i.e., architectural design, structural analysis and construction can be implemented. This also provides a feasible theory and methodology for the establishment and integrated applications of BIM. Furthermore, this study proposes a new approach for conflict and safety analysis during construction by integration of construction simulation, 4D construction management and safety analysis. The approach lays a foundation for the popularization of the complicated theories and methodologies. It also has important theoretical significance and wide application prospect in meeting the needs of safe construction, changing the backward situation and improving the safety level during construction.
下载链接: mailto:huzhenzhong@tsinghua.edu.cn
4 2005
胡振中. 国家体育场施工方案的优化及虚拟实施. 本科毕业论文. 北京: 清华大学. 2005
评论
中文关键词: 国家体育场,4D管理,施工方案优化,虚拟实施
英文关键词: the National Stadium, 4D management, Construction Optimization, Virtual Construction
中文摘要:
国家体育场是北京2008年奥运会的主体育场。作为该工程总承包的北京城建集团肩负着组织和实施工程建设的重任。因为体育场结构复杂、规模庞大,施工难度大,加上建设工期十分紧迫,所以如何高效而高质的施工是本项工程的关键。为了确保国家体育场工程高效、优质地顺利进行,关键在于应用高新技术,对施工方案进行科学的优化、对施工过程进行严格的管理和控制。
本课题研究将建筑施工4D管理系统应用于国家体育场工程,采用CATIA建立钢结构网盖的精确三维模型,并将模型细分,通过转换成3ds max 的STL格式文件,再转换成DWG文件,成功导入到AutoCAD和4D-GCPSU 2005中;通过对国家体育场施工方案的深入分析和了解,结合4D-CAD技术,采用动画演示和4D显示方式实现了国家体育场施工方案可视化模拟;课题研究还将Augmented SDESA系统应用于国家体育场工程,建立了与工程实际符合的施工过程模型,对钢结构吊装过程及其资源控制进行模拟和方案比较,并通过系统优化功能的扩充,实现了施工方案的资源优化,取得了较好的成果,为国家体育场施工方制定施工方案提供了定量的参考意见。
本课题研究针对国家体育场工程的实际需求,综合应用先进的计算机技术,所取得的研究成果在实际应用中得到了充分的肯定,对于实现节约施工资源消耗、提高施工效率、缩短施工工期的目标,具有研究和应用价值。
英文摘要:
The National Stadium is the main stadium of the 2008 Olympic Games in Beijing. The Beijing Chengjian Corporation, which is the chief contractor, is in charge of organizing and implementing the project. It is Crucial to complete the construction efficiently and high-qualitatively since The National Stadium has complex structure, large construct scale, high difficulty in construction and pressure time. To ensure that the project be under construction efficiently and with high quality, it is important to manage the project with high technology and optimize the construction method.
Our researches focus on the application of the 4D-GCPSU 2005 in the National Stadium project. We set up the exactitude 3D-Model of its steel structure in CATIA and convert the model to DWG data files, which can be read by AutoCAD and used by 4D-GCPSU 2005. By using the technology of 4D-CAD we also implement animation of virtual construction and the 4D-display. Also we set up the construction process model in SDESA. By simulating the construction process, comparing different construction methods and optimizing the construction method, we can give out valuable and quantitative ideas for construction managers. The result is satisfying.
This research combines advanced computer technology with the construction of the National Stadium to achieve the aims of reducing construction resources, improving construction efficiency and shortening the duration of the project.
下载链接: mailto:huzhenzhong@tsinghua.edu.cn
5 2005
张建平等. 信息化土木工程设计——Autodesk Civil 3D. 北京:中国建筑工业出版社. 2005
评论

研究团队介绍

【团队介绍】

        所在的科研团队由3名带队教师、3名博士研究生、2名硕士研究生以及多名研究助理组成。

【教师队伍】
zhanjianping.jpg

张建平

清华大学土木工程系 教授

北京云建信科技有限公司 董事长

huzhenzhong.jpg

胡振中

清华大学土木工程系 副教授

清华大学深圳国际研究生院 副研究员

linjiarui.jpg

林佳瑞

清华大学土木工程系 助理研究员

个人简介:

电子邮件:
联系方式:
研究方向:

代表著作:

【研究生】
博士研究生 yuanshuang.jpg
袁爽
lengshuo.jpg
冷硕
ZhangYunyi.jpg
张云翼
个人简介:

电子邮件:
联系方式:
研究方向:

代表著作:

硕士研究生

kangkai.jpg

康凯

WuLangtao.jpg

吴浪韬
个人简介:

电子邮件:
联系方式:
研究方向:

代表著作:

【研究助理】
chenxiangxiang.jpg

陈祥祥

jiangshaofeng.jpg

蒋绍峰

zhouyi.jpg

周一

yuanjing.jpg

袁静

chenjunliang.jpg

陈俊良

wuzhen.jpg

伍震

dinghaifen.jpg

丁海芬

huwei.jpg

胡伟

liaowenhao.jpg

廖文浩

tangsi.jpg

唐思

maoweixiao.jpg

毛伟笑

wuying.jpg

吴颖

guoliping.jpg

郭立平

huangziyi.jpg

黄子宜

pengda.jpg

彭达

个人简介:

电子邮件:
联系方式:
研究方向:

代表著作:

【合作伙伴】
合作单位图.jpg

基于BIM的大型公共建筑运维期安全管理技术研究(科普)

【研究背景】

随着我国经济的快速发展,在我国大中城市的新建建筑中,大型公共建筑的比例正在逐年增长,一些造型独特、结构形式复杂的大型公共建筑也不断涌现。

一些典型的大型公共建筑

然而,大型公共建筑由于自身体量大、功能多、人流大的特点,往往存在着安全隐患难以发现、受灾后应急处理不及时等问题,一旦出现意外灾害,很容易就会造成巨大的生命和财产损失。例如,2018年3月,俄罗斯克麦罗沃市一家购物中心发生重大火灾,由于缺乏逃生指引导致造成64人吸入浓烟而死亡。而日本大阪最高的商业办公楼于2011年的地震中成功撤离1000余人且没有伤亡,则是得益于良好的逃生预案。据文献资料分析得出,若在著名的“9·11”恐怖袭击事件中,若世贸中心遭到飞机撞击后前,能提前10分钟进行逃生规划和指引,则可以避免超过5%的楼内人员(约900人)丧生。

我们知道,一个建筑中包含有许多不同的构件和设备,比如梁、板、柱、管道、电梯、房间、走廊等等,要想实现建筑的安全管理,首先必须要实现这些对象的综合管理。举个简单例子,当发现建筑中某个位置的燃气管破裂时,我们就需要尽快找到它的控制阀门,但是大型公共建筑中的管道分布往往相当复杂,并且还可能有部分管道藏在墙体内部,如果这时候我们不知道管线的分布情况,就很难找到对应的控制阀门,也就容易出现安全事故。那么对于建筑中的海量信息,比如构件的尺寸、设备的位置、各个部分的相互关系等等,要如何实现它们的综合管理呢?

BIM就是一个很好的选择!

什么是BIM呢?BIM的全称是Building Information Model/Modeling,中文通常翻译为建筑信息模型。通俗的来讲,它是一个饱含建筑各种信息的三维数字模型。这意味着除了几何外形之外,它还包括了许多的其他信息,比如建筑构件的材料和工程性能、施工的顺序和进度等等。通过BIM,我们可以直观的看到建筑中各个对象的位置、快速地查找到目标对象,还可以通过动态更新数据来展现建筑的实时状态,进而为实现建筑的运维期安全管理打下基础。

建筑信息模型BIM的概念

【运维BIM的建立】

有了基本的思路之后,我们所面临的第一个问题,就是如何建立一个能够满足我们需求的BIM模型,然而这并不是一件简单的事情。通常我们用LOD(Level of Development,模型细度等级)来描述一个BIM模型的详细程度,LOD越高意味着模型越详细和完善,那是不是LOD越高越好呢?

LOD描述一个BIM模型的详细程度

以MEP(Mechanical、Electrical、Plumbing,即机械、电气、管道)工程为例,它可能包含暖通空调、配电、电信、自动控制、消防、给排水等十多个子系统,每个子系统下面可能有几十个组件,而每个组件又包含了大量元件。这就好像一个人由头、躯干、四肢组成,头又包括头发、眼睛、鼻子等,而头发又是由每一根头发组合而成。我们能够画出一个人的头发、眼睛、鼻子,却很难把他的每一根头发都描绘出来,事实上大多数时候也没有这个必要。同样的道理,将所有元件进行详细建模并对它们进行可视化管理也是一件几乎不可能完成的事情。

高LOD模型在提供更多模型信息的同时,也相应的增加了建模的时间和成本。在选择LOD时,应该要综合考虑它带来的好处和不利影响,一般来说能满足我们的使用目的就足够了。举个例子,我们可能通过一个人头发的长短、颜色和形状等信息来辨识他,而不需要用到更精确的信息像头发直径、头发数目等等,那么对于“辨识”这个目的,有前面的那些信息就足够了。在很多情况下,概要图或粗略模型就具有足够的信息来辅助建筑的管理,而对机场航站楼和体育场的施工和设备管理人员的现场调查表明,在一个大型的MEP项目中,建模工作的内容、细节和工作量都是失控的,所有的参与者都认为没有必要对LOD500(最高等级)中的所有组件进行建模。

通过以上分析,项目提出了一种多尺度BIM作为大型MEP项目的解决方案。多尺度BIM由若干宏观模型、微观模型以及概要模型组成,通常我们可以通过LOD来区分它们,各个模型有不同的精细程度和侧重方面,以满足不同的管理需求,方便不同管理角色之间的协作。当高级管理人员需要简要的信息来掌握整体施工状态时,一个简单的、无细节元素的宏观CM(Construction Management,施工管理)模型就足够了,因为他可能并不关心附属管道、阀门等小配件的几何信息和状态信息;而当我们需要处理紧急设备故障时,比如前面提到过的燃气管破裂的情况,我们就必须要知道管道和阀门等配件的位置信息、状态信息以及设备的关联信息,此时就要用到微观FM(Facilities Management,设施管理)模型了。这就好像在一次考试之后,班主任需要掌握学生各个科目的总体得分情况,而不需要知道学生每道题目上的具体得分,但是各个科目的老师却要关心学生在哪道题上扣的分比较多。可以看到,通过多尺度BIM,我们可以按照需求建立少量的详细模型,而不用把所有构配件放在同一个详细模型中,在减少建模工作量和硬件需求的同时,也为不同的管理者提供了最适合他们的模型。

多尺度BIM在方便管理的同时,也带来了一个问题,那就是如何管理不同尺度的BIM模型。比如当其中一个模型被修改时,怎么才能把这一修改反映到其他模型之中呢?一个直观的解决方案就是让所有模型使用同一个BIM信息库,这样任何一项修改都会引起共用信息库的变化,进而传递给其它所有的模型。打个比方,当一位老师发现自己学生的分数被登错了,而全年级的成绩排名表已经被分发给了不同的老师时,我们可以通过这样的方法来更正它们:老师把成绩改动告诉年级主任,然后年级主任生成一份新的年级排名表并通知其他老师,老师们再从年级排名表中提取自己班学生的成绩信息。在这个过程中,年级主任掌握的成绩排名表就起着独一无二的“BIM信息库”的作用,所有的成绩表(相当于“不同的模型”)都是通过它来建立的。基于这样的思路,我们给每个元素赋予一个GUID(Globally Unique Identification,全局唯一标识)作为名字,这样就可以区分出不同模型中的相同元素了。

那么各种信息在BIM信息库中要如何存储呢?我们将多尺度BIM需要用到的信息分成了4个部分,分别是对象定义、设计信息、施工信息和运维信息,BIM信息模型的架构如下图所示,它能够满足我们目前的需求。另外,我们还采用了IFC数据标准(Industry Foundation Classes,工业基础类,是一种数据标准)来实现多尺度BIM的表示,这样我们的BIM信息库就能够与其他兼容IFC标准的BIM应用程序进行信息交换了。

BIM信息模型的架构

【私有云上的BIM信息交换环境】

在解决了如何定义和描述BIM运维模型的问题之后,接下来我们就要考虑信息交换的问题了。前面已经说过,我们把要用到的信息都放在了一个独一无二的BIM信息库中,这个信息库要放在哪里比较合适呢?如果把它存储在个人的电脑上,那么任何人想要访问、输入或者修改信息库都要经由这台电脑来完成,而这对于一个大型公共建筑来说是一件不可能完成的事情,因为可能参与到这里面的工作者实在太多了,另外海量的数据对于普通电脑来说也是一个巨大的挑战。幸运的是,我们可以利用云技术来解决这个问题。将数据存储在不同参与方的不同服务器中,工作人员就可以随时随地通过网络来快捷的访问BIM信息库,方便了多方的协同作业。

通过私有云服务器来存储BIM信息库在带来便利的同时,也会引发参与方对数据失控的担忧,而这种担忧会反过来阻碍不同的利益相关者共享数据。一种解决方案是只允许其他参与方访问他们所需要的数据,即控制访问权限。研究中采用全局控制器来跟踪数据的位置和可访问权限,这样数据的所有权和隐私权都可以受到其所有者的控制,同时也允许其他方访问某些所需的数据。该方法如下图所示,首先不同的参与方建立自己的BIM服务器,参与方内部可以自由地进行数据共享和协作。而对于不同参与方之间的数据共享,我们建立了一个全局控制器来注册和跟踪数据的位置和授权,形成一个统一的私有云,连接不同利益相关者的BIM服务器。通过这种方式,用户可以通过自己的服务器访问私人数据,并通过全局控制器访问来自其他方的共享数据。验证表明,该方法在保持数据所有权和隐私的同时,也支持跨参与方的数据共享和协作,避免了数据版权或其他问题可能引发的法律问题。

私有云服务器来存储BIM信息库

【非标准格式信息的转化和融合技术】

经过以上研究,大型公共建筑中涉及的BIM信息定义、描述、存储和管理的问题已经基本解决了。但是上面的建筑信息大多是针对IFC格式的信息来说的,而建筑中涉及到的各种信息并不全是IFC格式的,如果我们想要充分利用这些信息,就要想办法把它们转化并融合到已有信息体系之中。项目研究并实现了多种非IFC格式信息的转化和融合技术,其中包括标识信息、结构安全监测信息、机电设备监测信息、GIS(Geographic Information System,地理信息系统)信息等等。

标识信息

以标识信息中的二维码为例,我们研究了二维码的技术特点,并开发出了自己的二维码接口。通过该技术,我们可以先将构件的关键信息以二维码的方式保存起来,当移动终端扫描到该标识时,就能够提取其中的信息,进而识别该构件,并从BIM运维数据库中获取其他相关的信息。为了更方便的为构件贴上标签,我们还设计了构件的成组机制,即把一定区域内构件的关键信息以特定的编码方式保存在二维码中,如下图所示。通过构件成组,可以把某一房间内的部分或者全部构件信息都以特定的编码方式保存到二维码中,这样移动终端在读取二维码后,就会显示该二维码中的所有构件,用户可以选择查看某一个构件进行信息查询,减少了贴标签的工作量,使构件识别变得更加方便、快捷。

构件的成组机制

监测信息

监测信息主要包含两方面内容:监测点信息和监测数据。对于机电设备来说,监测点信息包括监测点所属机电设备的特征信息(位置描述、所属系统、设备类型、设备编号等)、监测点的特征信息(监测点说明、监测数据类型、数据长度、数值范围、报警值、信息对象地址等)。在机电设备监测系统中,监测点信息通常以点表的形式存储,不同检测系统或者不同厂家的监测系统数据库会有所差异。

监测数据的传递根据使用情形的不同可以分别考虑从控制器端直接读取或从现有监测系统数据库中读取两种方式。从控制器端读取需要根据现场网络和控制器类型开发数据读取接口,这种方式可以更好地保证监测数据的实时性。现有监测系统数据库的读取方式有两种,一种是自建数据库存储监测数据,将商用机电监测系统的监测数据同步到自建数据库中;另外一种是系统本身不存储监测数据,在系统中存储各个监测点监测数据的访问路径信息,在需要监测数据时,通过访问路径信息从商用机电设备监测系统数据库中进行读取。

GIS信息

GIS主要用来获取、存储、处理、分析管理宏观拓扑信息。与BIM不同的是,GIS主要用2D图形的方式来表现宏观层次的空间拓扑信息,有很强的2D展现能力。根据运维安全管理的需求,我们从BIM数据库中提取房间信息以及走廊、楼梯、电梯、门等通道信息,并提出了一种基于BIM的室内道路生成方法,实现了GIS拓扑地图的自动生成,进而为大型公共建筑巡检路径的规划提供地图数据基础。

从BIM到GIS的自动转化算法,核心包括两部分内容:节点和路径的生成、路径权值的取值。首先从BIM中提取房间、大厅、走廊等空间,门、楼梯等建筑构件的几何信以及门的通行权限等相关信息,并沿大厅边缘绘制一个多边形路径,而多边形路径中所包含的每个门生成一个节点,并两两连接生成路径。其次,走廊两头各生成一个点,并相连接形成走廊的路径,如果走廊与大厅相连,则将走廊路径的端点与大厅路径中最近的点相连。然后,房间的每个门生成一个节点,并将门与连通的走廊或大厅的路径连接;最后在每个楼梯/电梯进出口生成一个节点,相邻层进出口的节点连接,且各节点与相连的走廊/大厅路径中最近的点相连。至此,我们就完成了节点和路径的自动生成。

【运维期安全管理】

完善了BIM运维模型的相关信息之后,我们怎样将这个模型应用到运维期的安全管理之中呢?下面将分别介绍它在结构安全、设备安全以及人员安全上的应用。

运维期结构安全

对于一个结构,通常我们会在设计时充分考虑各种受力情况,然后按照较不利的状态来调整构件的材料和尺寸,以保证极限状态下结构的安全性。但是在实际使用过程中,建筑受到的荷载是很难准确估计的,因此其实际状态与设计的状态往往相差较多,如果我们想要动态监测结构的受力状态,应该要做哪些工作呢?首先当然是获取关键构件或节点的状态信息,比如挠度、转角等等,这就需要在相应的位置安装传感器,并且将监测数据与监测点动态集成。之后我们就可以将这些数据导入到结构模型中进行分析,这意味着我们还需要有一个可供分析的结构模型,它必须含有构件的材料、尺寸等结构信息。基于以上考虑,我们建立了结构安全分析的统一模型,以便于进行结构安全信息的存储与管理,该模型如下图所示,它主要用来存储构件的几何、截面、材料、荷载等属性。

结构安全分析的统一模型

通过统一分析模型,我们建立了基于BIM的模型转换机制,即从BIM模型中抽取相关信息形成统一分析模型以及将分析结果返回到BIM模型的机制,这保证了数据的动态性和一致性。进一步的,我们还实现了统一信息模型与各结构分析软件的双向数据接口,以便于转化成各分析软件可接受的结构分析模型。完成这些工作之后,我们就可以针对主结构和临设结构进行分类统计和分析计算,实现实测值和预警值的直观对比,使监控结果可视化。基于以上技术实现的软件如下图所示,我们既可以查询单个工况下所有监测点的受力情况,也可以查看单个监测点在不同工况下的受力情况对比、实测应力与理论应力的对比,实现了横向和纵向的应力对比分析,从而为运维期结构安全的监测提供支持。

单个监测点在不同工况下的受力情况对比、实测应力与理论应力的对比

运维期设备安全

BIM运维模型中包含了海量的信息,对于一个特定的问题来说,并非所有的信息都是有用的,也并非所有的信息都是能够直接得到的,我们需要针对运维期安全管理的特点,从中提取出需要的信息用于分析和管理。对于设备安全管理来说,上下游关系是安全管理所需的一种重要信息。以暖通系统为例,下图显示了其部分子系统的组成和上下游逻辑关系,其中组合式空调机组控制着下游的弯头、风管、静压箱和封口等。在这里,所谓上游构件即为控制构件,下游构件为被控制的构件。然而,在已经建立的BIM模型基础上,依靠手工关联模型以形成上下游关系的操作是一项工作量极其巨大且容易出错的任务。本项目结合系统内构件类型分析、相似性分析和连续构件分析技术,提出了一种上下游逻辑关系的自动化提取技术,从而大大简化上下游关系建立的工作量,提高了工作效率。

暖通空调系统上下游关系示意图

与结构分析类似的,我们可以先将监控数据与模型中监测点的空间结构信息动态集成,再进行分类统计和分析,然后根据实测值、理论值以及预警值三者间的关系,自动进行分级预警,实现监控结果的可视化。此外,通过BIM运维模型和上下游关系,我们还可以快速定位危险点在模型中的位置、找到其上游构件,并调阅相关的维护知识手册,方便现场人员及时进行查询、分析和处理事故。如果这时出现了燃气管破裂的情况,我们就可以通过上下游关系迅速找到上游构件并定位,然后指导物业管理人员快速前往并关闭上游构件,以最快的速度控制紧急事故的进一步发展,极大的保证了运维期的设备安全。

紧急时间下通过上下游关系迅速找到上游构件并定位

运维期人员安全

大型公共建筑在运维期往往有着人员密集的特点,在遇到紧急事故特别是火灾时,如何快速安全地疏散人群是一个非常关键的问题。然而,通常情况下大型建筑结构形式较为复杂且通道繁多,人们在慌乱的情况下往往会走上错误的路线,进而错过最佳逃生时间。如果这时能够给逃生者提供一条避开危险区域且快速的路线,就可以大大增加逃生的几率。BIM运维模型既然能够动态的更新建筑信息,那么这些实时的信息是不是也能够应用在紧急情况下的人员疏散上呢?

答案当然是肯定的。当大型建筑某个位置出现火灾时,我们可以通过传感器来得到起火位置和受影响区域的相关信息,那么问题就变成如何在避开这些区域的情况下走最短的路线,或者说一条尽可能安全且快速的路线。如果给一个人足够的时间,他必然可以找到这样一条路线,但是在通道复杂或者逃生者不熟悉建筑的情况下,这就要花费很多的时间。而BIM运维模型可以说是最熟悉它自己的“人”,如果它能替我们来找这样一条路线,无疑要花费少得多的时间。

基于这样的思路,本研究参考AlphaGO的思想,采用了机器学习技术,通过BIM中的原始信息以及建筑区域当前状态信息实现对该区域安全等级的自动评估,以起到在紧急状态下提醒人们规避危险区域的作用,并进一步研究了大型公共建筑的动态疏散策略。该策略基于大数据的方法,通过BIM平台用类似于弈棋的过程模拟出海量的疏散场景,并引入评估给定场景下疏散策略好坏的机制,然后以深度学习和强化学习的方式,实现任意局面下动态决策的能力。

以下图为例,“初始路径”是策略网络未介入时的随机选择结果,它的得分刚过0.5,明显要低于后面的网络。随着迭代过程的进行,策略网络在评估机制的影响下不断自我调整,计算出的路径变得更加合理,决策的得分也就不断提高。这意味着即使给出一个全新的局面,算法仍然可以通过自学习来完成策略网络的自我进化,从而得到尽可能优的路径。

策略网络在评估机制的影响下不断自我调整

通过训练好的模型,我们就能够在给定情况下得到评估机制下的最优路线,一个典型的路线输出结果如下,以一个局部为例,可以看到尽管从755方向到安全出口2254号的最短路径是758-3410-742-2254,但输出结果为758-759-3405-771-2254的绕路,自动避开了危险程度较高的3410,验证了机器学习算法的有效性。

一个典型的路线输出结果

在紧急疏散时,我们除了要考虑危险区域、路径长度之外,还需要考虑人群之间的相互影响,比如说人群密度大的地方容易出现拥挤,进而导致疏散时间的增加。在一些情况下,尽管存在一条较短的疏散路径,但如果选择这条路径的人很多,则会增长疏散时间。基于这一考虑,我们在模型中引入考虑多人的疏散时间优化策略网络,以协调众人的逃生选择。

下图给出了某公共建筑在四种不同占用模式下(分别是办公时间、商业模式、晚上、假日模式)的一些典型路径,路径上的不同颜色表示不同的行走速度,红色立方体代表非常拥挤的区域。

四种不同占用模式下的一些典型路径

该模拟结果可以用来发现建筑中的异常区域。通过特定区域的人群疏散时间或者人流通行情况对该区域进行着色,管理人员就可以通过可视的三维图像来检查实体,并进一步分析得到关键区域。比如,下图中(a)、(b)分别是该建筑在某一紧急情况下的模拟得到的疏散时间、通行人数图像,可以看到西北角的居民使得西侧的两个出口和一个走廊超过了承载能力,该结果表明宜在西北侧增加一个安全出口。(c)、(d)分别是增加了一个建议安全出口后的疏散时间、通行人数图像,可以看到新出口从建筑的西部和北部吸引了了大部分流量,极大的减小了西侧出口的压力,并缩短了西部和北部人群的疏散时间。

某一紧急情况下的模拟得到的疏散时间、通行人数图像

【研究成果】

本项目主要研究成果包括:
1)针对当前大型公共建筑运维期安全管理中存在的海量信息的管理和集成应用方面等问题,通过引入BIM技术和云计算技术,构建了一个基于BIM和GIS的多尺度运维管理模型。
2)突破了大型公共建筑运维期结构安全性能动态监测与分析、设备安全性能分析与预警以及人员安全性能模拟与逃生等3个关键技术。
3)开发了基于BIM的大型公共建筑运维期安全管理平台(BIM-SMP),BIM-SMP的整体架构如下图。

BIM-SMP的整体架构

【研究总结】

总而言之,项目为大型公共建筑运维期安全信息模型的创建和应用提供了一套完整的理论、方法、技术和平台支持,实现了“运维期安全的宏观管理和微观管理相结合、信息管理和信息应用相结合、动态监测和实时评价相结合、灾后模拟和逃生指引相结合”,可及时发现建筑安全隐患和制定灾后应急方案,达到了提高建筑安全性能、减少建筑灾害损失、实现结构-设备-人员综合安全管理的目的。

【参考文献】

    [1] Yang Peng, Sun-Wei Li, Zhen-Zhong Hu. A Self-Learning Dynamic Path Planning Method for Evacuation in Large Public Buildings Based on Neural Networks. NeuroComputing. 2019, 365C: 71-85.
    [2] Zhen-Zhong Hu, Pei-Long Tian, Sun-Wei Li, Jian-Ping Zhang. BIM-based integrated delivery technologies for intelligent MEP management in the operation and maintenance phase. Advances in Engineering Software. 2018, 115: 1-16.
    [3] Yi Zhou, Zhen-Zhong Hu, Wei-Zhong Zhang. Development and Application of an Industry Foundation Classes-Based Metro Protection Information Model. Mathematical Problems in Engineering, vol. 2018, Article ID 1820631, 20 pages, 2018.
    [4] 冷烁, 胡振中. 基于BIM的人工智能方法综述. 图学学报, 2018, 39(5): 797-805.
    [5] Shuang Yuan, Zhen-Zhong Hu, Yang Peng. Application of BIM in Environmental Monitoring and Emergency Evacuation Management within Building Operation and Maintenance Phase: A Case Study. Proceedings of 17th ICCCBE, Tampere, Finland. Jun. 2018
    [6] Yang Peng, Jia-Rui Lin, Jian-Ping Zhang, Zhen-Zhong Hu. A hybrid data mining approach on BIM-based building operation and maintenance. Building and Environment. 2017, 126: 483-495.
    [7] Jianping Zhang, Qiang Liu, Zhenzhong Hu, Jiarui Lin, Fangqiang Yu. A multi-server information-sharing environment for cross-party collaboration on a private cloud. Automation in Construction, 2017, 81: 180-195.
    [8] 张晓洋, 胡振中. 面向结构有限元分析的模型转换方法研究. 工程力学, 2017, 34(6): 120-127.
    [9] 袁爽, 胡振中, 田佩龙. 面向智能运维的室内照明系统研究. 第三届全国BIM学术会议论文集. 上海, 中国. 2017
    [10] 王石雨, 胡振中, 田佩龙, 李久林. 基于BIM和监测数据的水厂水位动态模型及其应用研究. 第三届全国BIM学术会议论文集. 上海, 中国. 2017
    [11] Zhen-Zhong Hu, Xiao-Yang Zhang, Heng-Wei Wang, Mohamad Kassem. Improving interoperability between architectural and structural design models: An industry foundation classes-based approach with web-based tools. Automation in Construction. 2016, 66: 29-42.
    [12] Zhen-Zhong Hu, Jian-Ping Zhang, Fang-Qiang Yu, Pei-Long Tian, Xue-Song Xiang. Construction and facility management of large MEP projects using a multi-Scale building information model. Advances in Engineering Software. 2016, 100: 215-230.
    [13] Zhang Xiaoyang, Lin Jiarui, Hu Zhenzhong, Zhang Jianping, Fang Ji, and Du Shenyun. Towards BIM-based Model Integration and Safety Analysis for Brdige Construction. Proceedings of 16th ICCCBE, Osaka, Japan. Jul. 2016
    [14] Yi Zhou, Zhen-Zhong Hu, Xiao-Yang Zhang, Jia-Rui Lin. A BIM-based Safety Monitoring and Analysis System for a High-speed Railway Bridge. Proc. of the 33rd CIB W78 Conference, Brisbane, Australia. Nov. 2016
    [15] Yang Peng, Zhenzhong Hu. BIM-based Personnel Safety Level Evaluation Approach Using Machine Learning Methods for Public Buildings. Proceedings of 16th ICCCBE, Osaka, Japan. Jul. 2016
    [16] 田佩龙, 胡振中, 王珩玮, 张建平, 邹东. BIM在地铁项目精细化施工管理中的应用案例研究. 第二届全国BIM学术会议论文集. 广州, 中国. 2016
    [17] 彭阳, 胡振中. 应用离散傅里叶变换的BIM监测数据智能分析和展示. 第二届全国BIM学术会议论文集. 广州, 中国. 2016
    [18] Pei-Long Tian, Zhen-Zhong Hu, Heng-Wei Wang, Jian-Ping Zhang, Dong Zou. BIM-based Meticulous Construction Management for Metro Station Projects: A Case Study. Proc. of the 32nd CIB W78 Conference, Eindhoven, The Netherlands. Oct. 2015
    [19] 胡振中, 陈祥祥, 王亮, 何田丰. 基于BIM的管道预制构件设计技术与系统研发. 清华大学学报(自然科学版), 2015, 55(12): 1269-1275.
    [20] 田佩龙, 李哲, 胡振中, 邹东. BIM与建筑机电设备监测信息集成的研究. 土木建筑工程信息技术. 2015, 7(1): 8-13.
    [21] 田佩龙, 庄亮东, 孟欣, 胡振中. 基于BIM的停车场动态模型研究. 第一届全国BIM学术会议论文集. 北京, 中国. 2015
    [22] 胡振中, 彭阳, 田佩龙. 基于BIM的运维管理研究与应用综述. 图学学报. 2015, 36(5): 802-810.

 

 

       自强不息

                  厚德载物