摘要
以车辆与波形梁护栏之间的摩擦系数为切入点,采用计算机仿真模拟方法建立三维有限元模型,分析在不同摩擦系数条件下护栏各项功能所受到的影响。分析表明,随着摩擦系数增大,护栏对车辆的减速缓冲作用有所增强,但是护栏的导向功能、阻拦功能均有不同程度的降低,使得出现二次事故、恶性事故的几率大大增加。因此在实践中建议尽量采用摩擦系数较小的护栏材料并加强施工管理。
Beginning with the friction coefficient between the vehicles and W-beam guardrails, a three-dimensional finite element model was built to study the impact of friction coefficient on guardrails＇ functions. According to the analysis, with the increase of friction coefficient, the function of guardrail as a buffer is enhanced, while the navigation and blocking functions is weakened. Therefore, guardrails with minor friction coefficient are recommended.
出处
《筑路机械与施工机械化》
北大核心
2015年第12期62-65,69,共5页
Road Machinery & Construction Mechanization
关键词
波形护栏
摩擦系数
撞击
有限元分析
W-beam guardrail
friction coefficient
impact
finite element analysis
