大跨度悬索桥静风稳定性分析

The long-span suspension bridge calm wind stability analysis

根据矮寨特大悬索桥实际参数,用大型有限元软件建立了空间模型对工程算例进行了动力特性分析,同时在该桥的静风稳定性方面做了静风扭转发散,静风稳定数值分析及本设计结构在设计风速下的静风响应分析,得出了相应的结构,从理论上保证了该结构的安全性。

In this paper, according to the actual parameters of Aizhai suspension bridge, dyanmic analysis was carried out though buliding a 3 D caculating model on the finite element software. Meanwhile in terms of static stability we analysis the wind-induced lateral-torsional buckling and static stability numerical analysis and the wind-response analysis at design structure design wind speed for the bridge. As a result, it can gnarant the secutity.