车—桥碰撞的数值模拟研究

Research on numeric simulation of crash between vehicle and bridges

利用有限元分析软件ANSYS/LS-DYNA,建立了汽车—桥墩碰撞的有限元模型,通过对汽车—桥墩的碰撞过程进行数值模拟分析,得到了碰撞过程中的碰撞力、碰撞能量和桥墩墩顶位移,分析了桥墩受撞破坏的机理,对车—桥碰撞研究具有十分重要的意义。

The paper adopts the finite element analysis software,ANSYS/LS-DYNA,establishes the finite element model for the crash between the vehicle and bridge piers,analyzes the numeric simulation the crashing process between the vehicle and bridge piers,achieves the collision force,crashing energy and the displacement of pier top of the bridge piers,and analyzes the mechanism for the damage of the bridge piers,so as to have the important significance for the research on crash between vehicle and bridges.