高速公路双条半刚性护栏结构设计  

Structure Design of Double-Bar Semirigid Guardrail of Freeway

作　　者：刘建勋[1] 唐辉[2] 

机构地区：[1]重庆交通大学交通运输学院,重庆400074 [2]吉利汽车研究院,浙江杭州311228

出　　处：《重庆交通大学学报（自然科学版）》2012年第1期68-71,共4页Journal of Chongqing Jiaotong University(Natural Science)

摘　　要：针对我国高速公路护栏难以满足不同车型碰撞需求的问题,对高速公路护栏的结构及参数进行研究。采用能量守恒方法,建立车辆骑跨护栏事故数学模型,提出了双条半刚性护栏新型结构;采用均匀设计方法,对交通组成要素和车型外形参数进行分析,确定了双条半刚性护栏的有关参数。研究结果表明:该护栏可有效防止微型车下钻护栏和大型、重型车骑跨护栏等恶性交通事故的发生。According to the situation that highway guardrail can not meet the crash safety requirements of different vehicles in China,guardrail structure and parameters were studied.By method of energy conservation,vehicle-guardrail saddling model was established and a new double semirigid guardrail structure was presented.Through the method of uniform design,traffic composition and model shape parameters were analyzed,and the parameters of double semi-rigid guardrail was determined.The results show that the new guardrail can prevent the minicar drilling guardrail and large,heavy vehicles saddling guardrail effectively.

关 键 词：双条半刚性护栏 波形护栏 高度 均匀设计 优化设计 

分 类 号：U491.59[交通运输工程—交通运输规划与管理]