系杆拱桥静力断杆性能演变研究

以某系杆拱桥为计算模型,用有限元软件模拟了8种单根吊杆在断裂条件下拱桥的静力响应,识别出拱桥最不利的断杆部位及断杆情况,从而在量化的基础上有针对性地对桥梁进行应急预案研究。

Research on changes of static broken performance of tie bar in arch bridge

Taking some tie bar arch bridge as the calculation module,the paper adopts the finite element software to simulate the static response of the arch bridge of 8 tie bars in the broken conditions,and identifies the least favorable broken part and broken situation of the arch bridge,so as to have the emergency prediction scheme for the bridges based on the qualification.