大跨度双曲面管桁架钢结构屋盖施工受力性能研究

Study on Mechanical Performance of Steel Roof Construction with Large-span Hyperbolic Truss

淮安体育馆钢结构屋盖是由双曲面桁架钢管拱及桁架拱之间的连接桁架组成的折板体系,屋盖以桁架钢管拱为主要受力结构,钢结构屋盖采用分段吊装施工方法,通过有限元方法对吊装施工过程进行数值模拟分析,验算桁架在吊装过程中支架和主体结构的安全性。

The steel roof of Huaian Gymnasium is a folding system composed of hyperbolic truss steel tube arch and connecting truss between arch. Of which,the truss steel tube arch is main force structure. The steel roof applied segmental hoisting construction, meanwhile, finite element analysis was used to simulate the hoisting processing to check the safety of support frame and main structure.