港珠澳大桥护栏碰撞试验条件研究  

Study on Crash Test Condition of Guardrail of Hongkong-Zhuhai-Macro Bridge

作　　者：闫书明 方磊 张梁[3] 郑向前 

机构地区：[1]北京中路安交通科技有限公司,北京100071 [2]港珠澳大桥管理局,广东珠海519015 [3]中交公路规划设计院有限公司,北京100088

出　　处：《城市道桥与防洪》2011年第4期87-89,10,共3页Urban Roads Bridges & Flood Control

摘　　要：为合理确定港珠澳大桥护栏的防撞性能,结合香港、澳门、内地规范,按"就高不就低"的原则,确定港珠澳大桥护栏的碰撞条件。该文介绍了其试验条件的研究。研究结果表明,按内地规范规定确定的18 t大客车以80 km/h速度20°角碰撞条件组合,偏于安全且更符合大桥实际交通流特性,防撞等级达到国内规范规定的最高等级SS级520 kJ。根据该碰撞条件研发的护栏已通过评价标准的检验,将在港珠澳大桥上全线使用。In order to reasonably determine the crashproof performance of the guardrail of Hongkong-Zhuhai-Macao Bridge,the crash test condition of the bridge guardrail is determined based on the local,Hongkong and Macro criterions and according to the principle of 'choosing better one'.The article introduces the study of its test condition.The results show that 18t bus determined by the local criterion and with the crash construction combination of 80 km/h speed and 200 degree is safer and still satisfies the actual traffic volume characteristic of the bridge.The crashproof class is up to the highest level of Class SS and 529 kJ stipulated by the Chinese criterion.The guardrail developed on this crash conditions has past the inspection of appraisal standard and will be used in the whole line of Hongkong-Zhuhai-Macao Bridge.

关 键 词：港珠澳大桥 护栏 碰撞条件 防撞等级 

分 类 号：U443.7[建筑科学—桥梁与隧道工程] U446[交通运输工程—道路与铁道工程]