200型装配式公路钢桥安全性评价及工程应用

Safety Evaluation and Engineering Application of 200Type Assembled Highway Steel Bridge

为了评价装配式公路钢桥的安全性,使用公路钢桥结构可靠度理论和桥梁安全评价等级研究200型装配式公路钢桥。借助Matlab和Midas有限元软件,建立基于结构可靠度的极限状态方程,求解出可靠度指标;制定安全评估方法,并以工程实例进行验证。结果表明:安全性评估方法能够合理地对装配式钢桥的安全性能做出评价,可供同类工程参考。

In order to evaluate the safety of assembled highway steel bridge, the structural reliability theory and bridge safety rating were applied to study the 200 type assembled highway steel bridge. With the help of finite element software Matlab and Midas, the limit state equation based on structural reliability was established to solve the reliability index; a safety evaluation method was developed and verified in practical applications. The method can reasonably evaluate the safety performance of the assembled steel bridge, which can be used for reference.