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为了规范农村公路上应用较为普遍的、但本身并没有经历过防护能力验证的油桶拦挡的用法,需对其安全性能及适用条件进行深入分析。基于最新的JTG 05-01—2013《公路护栏安全性能评价标准》要求,应用Hypermesh软件建立汽车-拦挡碰撞的有限元模型,并在LS-DYNA环境下进行计算机仿真碰撞分析,根据分析结果来研究其安全性能和适用条件。结果表明:油桶拦挡的阻挡功能和缓冲功能满足C级防护标准的要求,导向功能不满足规范要求,其安全性能不满足规范要求;油桶拦挡宜做警示墩使用,以警示作用为主。
In order to regulate the usage of oil barrels, which are more common in rural roads, but have not undergone self-protection verification, the safety performance and applicable conditions need to be analyzed in depth. Based on the latest JTG 05-01-2013 Highway Safety Assessment Criteria for Highway, the finite element model of car-stop collision was established by Hypermesh software and the computer simulation collision analysis was carried out under LS-DYNA environment. Based on the analysis results Its safety performance and applicable conditions. The results show that the obstruction function and buffer function of oil barrels meet the requirements of Class C protection standards. The guidance functions do not meet the requirements of the code, and their safety performance does not meet the requirements of the code. Oil barges should be used as warning piers, with the warning function as the main function.