Research on Temporary Support Unloading During Construction of Long Cantilevered Steel Structure Roof System: A Case Study in Xiamen, China
摘要
When simulating the unloading process of a steel structure roof construction, it is commonly assumed that the working condition is synchronous unloading, but this is challenging to achieve in actual construction and can pose safety risks. Upon examining various unloading methods for structural analysis, it was determined that their computational workload is substantial. To address this issue, this paper proposes a combined unloading method based on the structural characteristics of the southern cantilever grid structure of the roof cover of No. 3 exhibition hall of Xiamen New Convention and Exhibition Center. The reliability of this method is confirmed through finite element simulation analysis and on-site monitoring tests. The research findings demonstrate that this method can optimize the construction unloading sequence, significantly reduce the amount of structural calculation and analysis, and improve the safety of the steel roof construction process.