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.
出处
《青岛理工大学学报》
CAS
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)
关键词
护栏端部
碰撞
仿真分析
解体消能
优化
guardrail terminal
crash
simulation analysis
breakaway design theory
optimization
