桥梁装配式混凝土护栏纵向连接设计、分析与试验  

Design,Analysis and Test of Longitudinal Connection of Bridge Fabricated Concrete Guardrail

作　　者：程鹏 王海渊 马永杰 潘宝林 CHENG Peng;WANG Hai-yuan;MA Yong-jie;PAN Bao-lin(Shaanxi Transportation Holding Group Co.Ltd.,Xi'an 710ooo,China;Shaanxi Provincial Transport Planning Design and Research Institute Co.Ltd.,Xi'an 710065,China;RIOH Traffic Safety Co.Ltd.,Beijing 100088,China)

机构地区：[1]陕西交通控股集团有限公司,西安市710000 [2]陕西省交通规划设计研究院有限公司,西安市710065 [3]北京中交华安科技有限公司,北京市100088

出　　处：《公路》2025年第2期284-289,共6页Highway

摘　　要：针对现状装配式混凝土护栏纵向连接的缺点,采用超高性能混凝土材料,利用其抗拉强度较高的特性,设计了小构造尺寸的装配式混凝土护栏纵向连接。对纵向连接铰缝的抗剪强度进行了理论分析、非线性有限元分析和足尺实车碰撞试验。结果表明,该纵向连接设计满足六级护栏的车辆撞击荷载需求,在实车碰撞试验中表现出了非常高的结构可靠性,并具有较高的经济性。In view of the shortcomings of the longitudinal connection of the fabricated concrete guardrail at present,in the paper,ultra-high performance concrete material is used,the longitudinal connection of the fabricated concrete guardrail with small structural size is designed by taking advantage of its high tensile strength.Theoretical analysis,nonlinear finite element analysis and full-scale vehicle crash test are carried out on the shear strength of longitudinal connection hinge joints.The results show that the longitudinal connection design meets the vehicle impact load requirements of the six-level guardrail,and shows very high structural reliability and high economy in the real vehicle impact test.

关 键 词：桥梁装配式混凝土护栏 纵向连接 铰缝 理论计算 非线性有限元分析 实车足尺碰撞试验 

分 类 号：U417.12[交通运输工程—道路与铁道工程]