桥墩受车辆撞击研究综述

为促进桥墩防车撞设计的发展,从研究方法、撞击力取值、桥墩防撞设计及损伤评价等方面阐述了车撞桥墩的研究现状,指出现有研究中存在的问题和进一步研究的方向。结果表明,试验法、理论分析和有限元数值模拟等方法各有所长,3种方法相结合与相互验证将是车-桥碰撞研究的发展趋势;便于工程应用的车辆对桥墩的撞击作用计算公式亟需建立;车辆碰撞桥墩事故发生后如何对桥梁结构的损伤程度进行快速合理地评价有待深入探索;能同时减少桥墩及车辆碰撞损伤、占地面积小、防撞效果好的城市桥梁桥墩防车撞设计方法有待进一步研究。

Review of Research on Bridge Piers Subjected to Vehicle Collision

In order to promote the development of anti-collision design for bridge pier,the research status of vehicle colliding bridge pier is expounded from the aspects of research method,impact force value,pier anti-collision design and damage evaluation.The problems in the current research and the direction of further research are pointed out.The results show that the experimental method,theoretical analysis and finite element numerical simulation have own advantages.The combination and the mutual verification of three methods will be the development trend of the vehicle-bridge collision research.The calculation formula for vehicle impact on bridge piers convenient for engineering applications needs to be established.It is to further explore how to quickly and reasonably evaluate the damage degree of bridge structure after an accident of vehicle collision on bridge pier.And it is to further research the anti-vehicle collision design method of urban bridge piers able to reduce the bridge pier and vehicle collision damages with less land occupation and good anti-collision effect.