摘要
足尺实车碰撞试验是目前检验桥梁预制混凝土刚性护栏性能的必要手段。伴随着新一轮的高速公路扩容与城市交通改造,质量要求、安全环保与工业化高度融合,针对桥梁预制混凝土刚性护栏推动形成更为先进的试验检测模式与发展理念。通过对护栏安全性能要求进行调研,归纳了三项主要评价内容,分别讨论了其内存因素,并对紧迫性程度靠前的关键问题进行分析。在此基础上讨论了当前预制混凝土刚性护栏设计形式、碰撞试验测试参数以及性能评判指标是否对关键问题认识的影响。研究旨在对后续桥梁预制混凝土刚性护栏实车碰撞试验的发展与改进提供参考。
Full scale real vehicle collision test is currently a necessary means of testing the performance of prefabricated concrete rigid guardrails for bridges.With the new round of highway expansion and urban traffic renovation,quality requirements,safety and environmental protection,and industrialization are highly integrated.A more advanced testing and inspection mode and development concept have been formed for the push of prefabricated concrete rigid guardrails for bridges.Through research on the safety performance requirements of guardrails,three main evaluation contents were summarized,and their memory factors were discussed separately.The key issues with high urgency were analyzed.On this basis,the influence of current design forms,collision test parameters,and performance evaluation indicators of precast concrete rigid guardrails on the understanding of key issues was discussed.The research aims to provide reference for the development and improvement of the actual vehicle collision test of prefabricated concrete rigid guardrails for bridges in the future.
作者
张显雄
王中文
林才奎
李志生
王良国
Zhang Xianxiong;Wang Zhongwen;Lin Caikui;Li Zhisheng;Wang Liangguo(Guangdong Province Doctoral Workstation,Poly Changda Engineering Co.,Ltd.,Guangzhou,China)
出处
《科学技术创新》
2025年第7期170-176,共7页
Scientific and Technological Innovation
关键词
碰撞试验
桥梁
预制护栏
混凝土
性能评判
collision test
bridge
prefabricated guardrail
concrete
performance evaluation
