车辆冲击荷载下防撞杆的简化设计方法研究  

Research for the Simplified Design Method of Anti-Ram Bollards Subject to Vehicle Impact Load

作　　者：王震[1] 李国强[2] 陈素文[2] 孙建运[3] 

机构地区：[1]同济大学土木工程学院,上海200092 [2]同济大学土木工程防灾国家重点实验室,上海200092 [3]中国建筑股份有限公司技术中心,北京101300

出　　处：《建筑钢结构进展》2013年第2期44-51,共8页Progress in Steel Building Structures

摘　　要：近年来发生的规模较大的恐怖袭击活动中,车载简易爆炸装置(VBIED)逐渐成为建筑结构与基础设施安全的重大危害。防撞杆作为重要建筑周边的第1道安全屏障,能够有效地控制潜在威胁车辆对建筑物的侵入。因此,以防撞杆为代表的阻拦型防爆路障在英、美等发达国家已有广泛应用。为了规范阻拦型防爆路障的试验测试及评定标准,英、美等国都相继颁布了本国阻拦型防爆路障的评测规范,其中美国规范中提出了一套K级抗撞等级标准。利用显式动力分析软件LS-DYNA的强大模拟功能,结合美国规范中的K4等级对应工况,提出了一套适用于钢管混凝土防撞杆的简化设计方法,可供今后的工程应用参考。In past large-scale terrorist attacks,vehicle-borne improvised explosive devices (VBIED) have become the major hazard for the safety of buildings and infrastructures.As the first line of defense against terrorism,anti-ram bollards could control the penetration ofvehicles with potential threat to buildings effectively.Therefore,anti-ram bollards have been widely used in the developed countries,such as U.S.and Britain.In order to adopt a unified test and evaluation standard of vehicle barriers,the governments of U.S.and Britain have established standards for vehicle barrier devices respectively.A criterion of K-level was given in the U.S.specification.By using of the LS-DYNA software,this paper presents a simplified design method of anti-ram bollards subject to vehicle impact load according to the K4 level,which could give a reference for the future engineering design.

关 键 词：防撞杆 简化设计方法 钢管混凝土 车辆冲击荷载 

分 类 号：TU312[建筑科学—结构工程]