武汉国际博览中心椭球体钢连廊施工阶段仿真分析

Simulation Analysis of Ellipsoid Steel Corridor of Wuhan International Expo Center

结合武汉国际博览中心洲际酒店星空会所为超大跨度重型椭球体钢连廊的特点和施工难点,对其施工阶段仿真分析进行了研究。在分析过程中,深入分析和理解椭球体钢连廊在施工阶段和使用阶段的差异性后,采用临时支撑法和局部杆件加强法对施工阶段的连廊钢结构进行加固,使得施工方案具有可行性;通过施工阶段模拟分析,优化了施工方案的拼装顺序。对整体提升施工进行不同步敏感性分析,确定不同步阈值,为实现施工的平衡态提供理论依据。施工监测结果表明,施工阶段仿真分析合理、正确。

Starry Club of Intercontinental Hotel of Wuhan International Expo Center is super long-span and heavy ellipsoid steel corridor structure. Based on its characteristics and the difficulty of construction,the simulation analysis of construction stage was studied. After deep analysis and understanding of the difference between construction stage and usage stage,the method of temporary support and the method with local bar strengthening which made the construction scheme feasible,were used to strengthen the steel corridor structure in the construction stage. Through the simulation of construction stage,the assembly sequence of the construction scheme was optimized. The sensitivity analysis of the integral lifting construction determined the non-synchronization threshold which provided the theoretical basis for the construction of equilibrium state. The results of construction monitoring showed that the simulation analysis of construction stage was reasonable and correct.