大跨度钢结构施工过程仿真分析

SIMULATION ANALYSIS OF CONSTRUCTION PROCESS OF A LONG-SPAN STEEL STRUCTURE

鉴于大跨度钢结构施工要求精度高,其内力和位移随着建造过程不断变化,与结构一次成型的受力情况有很大差别的特征,对钢结构进行施工阶段的受力分析具有重大意义。以武汉光谷网球中心为例,采用MIDAS Gen按施工顺序进行全过程分析,并选取关键节点,将其模拟结果与监测结果对比分析,验证了有限元分析的正确性和施工方案的合理性。

As long-span steel structure construction requires high precision,its internal force and displacement are changed in the construction process,and the stress conditions are quite different compared with that of completed structure,so it is significant to analyze the stress of steel structure in the construction stage. Taking Wuhan Optics Valley International Tennis Center as an example,MIDAS Gen finite element software was used to simulate the whole construction process according to the construction sequence,and the key joints were selected. The simulation results and monitoring results were compared and analyzed in order to verify the correctness of the finite element analysis and the rationality of the construction scheme.