汽车与不同形式高速公路护栏碰撞的试验研究

Experiment on Vehicle Impact with Different Guardrails

汽车与高速公路护栏碰撞事故中,护栏不仅有拦截、导向作用,还要有良好的缓冲吸能特性,以减小由于乘坐空间过度变形以及人与车内物体二次碰撞对乘员的伤害。通过实车与两种不同形式护栏的碰撞试验,研究车辆、护栏碰撞中的动态响应,分析护栏、汽车和乘员的特性以及相互关系;护栏的不同结构形式与安装方式对乘员的安全性的影响,为高速公路护栏的设计、施工以及在不同地点的设置提供有益的借鉴。

In the crash between vehicle and highway barrier, the highway guardrail not only has the functions to resist and guide the vehicle, but also has the character of absorption to minimize injury of occupants caused by excessive deformationy of cab or secondary impact. The impact experiments are carried out under the conditions of different structured guardrails, the dynamic characteristic and the relations among guardrail, vehicle and occupants are analyzed. The results are beneficial to the design of vehicle and guardrail.