Based on the stability theory of arch bridge,the finite element software ANSYS is used to calculated the stability factor and study the influencing parameters to the stability of a half-through steel arch bridge,those influencing parameters include the load-arrangement method,the rigidity of rib,the bending rigidity of main girder,the rigidity of suspender,some valuable conclusions are obtained.%以某中承式钢拱桥为研究对象，基于有限元稳定分析理论，采用大型有限元软件ANSYS，对该拱桥的稳定安全系数进行了计算，并从荷载布置方式、拱肋抗弯刚度、主梁抗弯刚度、吊杆刚度等方面，分析了影响该拱桥稳定性的因素，得到了一些有价值的结论。
展开▼
