移动荷载作用下连续刚构桥的位移动力响应分析

Dynamic response analysis of continuous rigid frame bridge displacement under moving load

为研究桥梁在移动车辆荷载作用下的位移动力特性,以某连续刚构桥为计算实例,采用有限元分析软件MIDAS/Civil进行数值模拟及计算分析,分析了行车速度、车辆轴重及行车数量等对桥梁结构位移动力响应的影响规律,为该类桥梁的使用及维护提供理论参考。

To study the dynamic characteristics of the bridge displacement un- der moving vehicle loads, with a calculation example of a continuous rigid frame bridge ,the finite element analysis software MIDAS/Civil was adopted for numerical simulation and computational analysis, and the influences of the driving speed, vehicle axle load and the number of vehicles on the dynamic response of the bridge structure displacement were analyzed, and corresponding conclusions were given, which provides theoretical reference for the use and maintenance of similar bridges.