After application and defense, the "Research on Key Technologies for Stress-Free Construction Based on BIM" submitted by the Beijing Municipal Construction Office has been included in the 2016 Jiangsu Provincial Construction System Science and Technology Guidance Project. The project number is 2016ZD109, and the Municipal Construction Office will move quickly and strive to complete the project in the first half of next year.

Taking the Development Road cable-stayed bridge over the Beijing-Hangzhou Grand Canal as an example, the project uses BIM models to implement the stress-free state method for construction control of cable-stayed bridges, improve the accuracy of construction control under the stress-free state method, conduct real-time error analysis, and analyze the impact of errors on the completed bridge state more intuitively and in greater depth. This will improve the controllability of the construction process and meet the alignment requirements of the completed bridge. The research topic can solve problems such as the high accuracy requirements and difficult alignment control in the construction control of such bridges, and provide more basis for shortening the construction period and saving costs.