In order to promote the extensive and in-depth development and application of BIM technology in Chinese construction field, the Fourth "Longtu Cup" National BIM Contest Launching Ceremony and the Third "Longtu Cup" National BIM Contest Award Presentation Ceremony and Summit Forum were successfully hosted on May 23rd, 2015, in Beijing by the China Graphic Academy. These events were under the guidance of government departments and scientific research institutions including Chinese Society of Science and Technology, the Educational Training Centre of Ministry of Human Resources and Social Security of the People's Republic of China, China Architectural Scientific Research Institute, Tsinghua University and Beihang University. Xiaoyang Zhang, from our research team, gave a speech in the summit forum and presented the first prize work, "Research and Application of BIM-based structural analysis model conversion system". Related materials have been uploaded to the "Resource download" section.