高速公路护栏端部设计及其碰撞仿真分析  

The Simulation Analysis of the Developed Highway Guardrail Terminals

作　　者：宋慧[1] 王丰元[1] 

机构地区：[1]青岛理工大学汽车与交通学院,青岛266520

出　　处：《青岛理工大学学报》2010年第1期81-85,122,共6页Journal of Qingdao University of Technology

基　　金：山东省自然科学基金资助(Y2008F60)

摘　　要：交通安全问题是全社会关注的一个热点问题,路侧交通事故占交通事故总数中相当大的比例.路侧护栏作为高速公路上防护事故车辆的有效手段,其端部设计与道路交通安全息息相关.结合我国路侧半刚性安全护栏端部的设计现状,提出解体消能优化设计方案,采用计算机仿真模拟软件和有限元结构分析软件进行碰撞仿真,模拟显示了端部解体消能结构在碰撞仿真过程中的运动状态,结果显示此设计具有很好的吸能效果及优越的可靠性和安全性.设计方案及仿真结果在陕蒙高速公路上进行了试验段施工,取得了成功.The road traffic safety is a hot point that absorbs the attention of the whole society. The roadside traffic accidents count great proportion in the total traffic accidents of the high- way. The roadside barriers are an effective method to protect accident vehicles on road. Its terminal design plays an important role in the road safety. The breakaway energy-absorbing guardrail terminals are optimized and designed based on the analyses of the conventional design situation of the steel guardrail terminals. The crash of cars at the developed guardrail terminal is simulated with general software to show the movement of the optimized guardrail terminal. The simulation result shows perfect energy-absorbing ability, security and reliability. The practical design is successfully used on a typical road section of Shanxi-Mongolian freeway.

关 键 词：护栏端部 碰撞 仿真分析 解体消能 优化 

分 类 号：U491.5[交通运输工程—交通运输规划与管理]