横竖向车桥耦合振动下弯桥动力响应分析方法

Dynamic Response Analysis Method of Curved Bridge under the Coupled Vibration of Horizontal and Vertical Vehicle-axle

针对车—弯桥耦合振动问题,在传统竖向车桥耦合振动的基础上,考虑车桥横向耦合振动。文中提出了利用ANSYS/APDL语言编制逐步积分法程序求解车辆运动方程的方法,在ANSYS一种环境下实现了车桥耦合振动的求解,在保证精度的前提下简化了车桥耦合求解程序,从而给公路曲线梁桥的求解提供了一种简便精确的方法。

Aiming at the problem of vehicle-bending bridge coupling vibration, on the basis of the traditional vertical vehicle-axle coupling vibration, the lateral coupling vibration of the vehicle-axle is considered. A method of using ANSYS/APDL language to compile a step-bystep integration program to solve the equation of motion of the vehicle is proposed, so as to realize the solution of the vehicle-axle coupling vibration in an environment of ANSYS, and simplify the vehicle-axle coupling solution program under the premise of ensuring the accuracy.The solution of highway curved girder bridge provides a simple and accurate method.