公路中分带障碍物防护低变形量护栏研究  

Research on Low Deformation Highway Barriers of Median Zoning Obstacle Protection

作　　者：滕玉禄 段绍飞 秦延朋 张杏威 TENG Yulu;DUAN Shaofei;QIN Yanpeng;ZHANG Xinwei(Beijing Highway Traffic Engineering Co.,Ltd.,Beijing 101102,China;Guizhou Hongyang Traffic Construction Engineering Co.,Ltd.,Guizhou 550022,China)

机构地区：[1]北京市高速公路交通工程有限公司,北京101102 [2]贵州泓阳交通建设工程有限责任公司,贵阳550022

出　　处：《交通科技》2022年第4期75-78,113,共5页Transportation Science & Technology

摘　　要：针对高速公路中分带内障碍物位置安全防护能力较弱,失控车辆易直接碰撞障碍物或碰撞护栏后产生侧倾碰撞障碍物等问题,研究一种高防护能力、有效降低大型失控车辆侧倾的中分带障碍物防护低变形量护栏。采用计算机模拟仿真分析与实车足尺碰撞试验验证,其安全防护性能满足规范中SA级(防护能力≥400 kJ)的要求。并采用经验证过的仿真模型对过渡连接位置进行安全模拟仿真分析。中分带障碍物防护低变形量护栏可有效提高公路中分带内障碍物的防护水平,减少二次交通事故的发生。Aiming at the problems that the safety protection ability of the expressway medium divider obstacles is weak,and the out-of-control vehicles are easy to directly collide with the obstacles or roll into the obstacles after colliding with the barriers,a low deformation highway medium barrier with high protection ability and effectively reducing the roll of large out-of-control vehicles is studied.Computer simulation analysis and full-scale impact test with real vehicles are adopted to verify that its safety protection performance meets the requirements of SA level the protection capacity is not less than 400 kJ in the specification.The safety simulation analysis of the transition connection position is carried out by using the verified simulation model.The research results show that the low deformation barriers of zoning barrier protection can effectively improve the protection level of zoning internal barriers in the highway and reduce the occurrence of secondary traffic accidents,which is of great significance to improve the safe operation level of the highway.

关 键 词：低变形量护栏 车辆最大动态外倾值 计算机模拟仿真 实车足尺碰撞试验 

分 类 号：U491.59[交通运输工程—交通运输规划与管理]