铁道标准设计Issue(8)：70-74,5.
基于LS-DYNA的车辆对桥墩撞击力仿真分析
Dynamic Simulation Analysis Based on LS-DYNA about Impact Force on Bridge Pier Caused by Vehicle
摘要
Abstract
A vehicle dashing against a bridge pier can often be seen at an overpass bridge.For the purpose of exploring the changes of the impact force under different vehicle loads and from different impact angles,the LS-DYNA was employed to simulate the process of a vehicle dashing against a bridge pier,and the standard vehicle model and round-ended pier model were adopted.And by using three kinds of vehicle speeds with different vehicle loads and after calculation,the changes of impact forces with both the changes of vehicle loads and impact angles were ascertained,and the change rule of impact forces under different vehicle loads was researched.The results show that the peak and duration time of impact force curve are influenced by vehicle loads and by impact angles to a certain degree,and the maximum impact force exceeds the provision stipulated in relevant standard.关键词
桥墩/碰撞/车辆载重/仿真模拟/规范公式Key words
bridge pier/impact/vehicle load/simulation/standard formula分类
建筑与水利引用本文复制引用
刘思明,崔堃鹏,夏禾,张楠..基于LS-DYNA的车辆对桥墩撞击力仿真分析[J].铁道标准设计,2013,(8):70-74,5.基金项目
中央高校基本科研业务费专项资金资助(2013YJS059) （2013YJS059）
