Highway Concrete Guardrail Lifting Scheme and Safety Performance Verification  

作　　者：Ronggui Zhou Yidan Xie Jiangang Qiao Ronggui Zhou;Yidan Xie;Jiangang Qiao(Road Traffic Safety Technology Transportation Industry Key Laboratory, Beijing, China;School of Civil Engineering and Transportation, Hebei University of Technology, Tianjin, China)

机构地区：[1]Road Traffic Safety Technology Transportation Industry Key Laboratory, Beijing, China [2]School of Civil Engineering and Transportation, Hebei University of Technology, Tianjin, China

出　　处：《Journal of Transportation Technologies》2021年第1期1-13,共13页交通科技期刊（英文）

摘　　要：In order to achieve the old fence of reuse, improve the safety performance of guardrail, barrier structure does not meet the requirements, make full use of the old concrete guardrail on the basis of heightening, through computer simulation experiment were analyzed, and optimization design, through the real car collision test, make the concrete guardrail after heightening structure satisfies the requirement of </span><span style="font-family:Verdana;">the </span><span style="font-family:Verdana;">safety performance of current specification. The results show that the protective performance of the two guardrail schemes meets the requirements of the current guardrail evaluation standards through the computer simulation experiment. Through the optimized design of scheme 1, the actual car crash test proves that the enhanced structure of Minhua TYPE II concrete guardrail can meet the requirements of safety performance evaluation. The research results provide an important basis for the transformation of </span><span style="font-family:Verdana;">the </span><span style="font-family:Verdana;">guardrail and the revision of the current design of expressway in China.In order to achieve the old fence of reuse, improve the safety performance of guardrail, barrier structure does not meet the requirements, make full use of the old concrete guardrail on the basis of heightening, through computer simulation experiment were analyzed, and optimization design, through the real car collision test, make the concrete guardrail after heightening structure satisfies the requirement of </span><span style="font-family:Verdana;">the </span><span style="font-family:Verdana;">safety performance of current specification. The results show that the protective performance of the two guardrail schemes meets the requirements of the current guardrail evaluation standards through the computer simulation experiment. Through the optimized design of scheme 1, the actual car crash test proves that the enhanced structure of Minhua TYPE II concrete guardrail can meet the requirements of safety performance evaluation. The research results provide an important basis for the transformation of </span><span style="font-family:Verdana;">the </span><span style="font-family:Verdana;">guardrail and the revision of the current design of expressway in China.

关 键 词：Concrete Guardrail Scheme Optimization SIMULATION Real Vehicle Collision Safety Performance 

分 类 号：TU5[建筑科学—建筑技术科学]