东江特大桥栈桥稳定性计算分析

Trestle Stability Analysis of East River Bridge

本文介绍了惠澳高速公路东江特大桥栈桥的设计方案，针对东江特大桥栈桥，在分析荷载的基础上，运用清华大学结构力学求解器分析了栈桥的稳定性，分别对栈桥的分布梁受力、贝雷桁架纵梁受力、钢管桩上横梁受力、顶面槽钢桥面受力进行了计算，验算了栈桥的稳定性，同时对栈桥在水流冲击作用下的稳定性进行了计算，从而全面考虑了栈桥在各种荷载下的稳定性状况，为设计施工提供基础数据。

The trestle designing project of Guangdong-Macao Expressway East River Bridge was introduced in this paper. On the basis of loads anal- ysis,forces in Spreader beam,Bailey truss stringers,pipe pile beam,top channel deck were calculated by using structural mechanics solver of Ts- inghua University,and the stability of trestle was checked as well as the stability of trestle in the water flow impact. Thus the stability condition of trestle under various loads was fully considered which provide basic data for the design and construction.