震后桥梁球型支座服役性能评估与试验研究  

Evaluation and Experimental Study on the Service Performance of Post-earthquake Bridge Spherical Bearings

作　　者：桂长忍[1] 顾晓辉 李培璐 夏俊勇[1] 冷新云[1] GUI Changren;GU Xiaohui;LI Peilu;XIA Junyong;LENG Xinyun(Zhuzhou Times New Material Technology Co.,Ltd.,Zhuzhou Hunan 412007,China)

机构地区：[1]株洲时代新材料科技股份有限公司,湖南株洲412007

出　　处：《高速铁路新材料》2024年第2期80-83,共4页Advanced Materials of High Speed Railway

摘　　要：桥梁支座是保障铁路桥梁结构安全的重要部件,发挥着将上部结构载荷及变形传递给墩台的重要作用。为研究桥梁支座的长期使用性能,结合西北某高铁线路震后复旧工程,对已服役十余年的震后桥梁球型支座进行检查和试验分析。结果表明:震后桥梁球型支座的竖向承载力、摩擦系数和转动力矩参数等指标仍满足设计要求,可继续使用。Bridge bearing is an important part to ensure the safety of railway bridge structure,and plays an important role in transferring the load and deformation of the superstructure to the pier.In order to study the long-term service performance of bridge spherical bearing,combined with the post-earthquake rehabilitation project of a high-speed railway line in northwest China,the post-earthquake bridge spherical bearings that have been in service for more than ten years were examined and tested.The experimental research results show that the vertical bearing performance,friction coefficient,and rotational torque parameters of post-earthquake bridge spherical bearings can meet the design requirements and can continue to be used.

关 键 词：球型支座 震后复旧工程 服役状况 性能试验 

分 类 号：U443.36[建筑科学—桥梁与隧道工程]