采用预压限位挡块的连续梁桥抗震性能研究  

Research on Seismic Performance of Continuous Girder Bridges with Preloading Restrainer

作　　者：郑万山[1,2] 谢皓宇 刘怀林[1,2] 高文军[1,2] ZHENG Wanshan;XIE Haoyu;LIU Huailin;GAO Wenjun(State Key Laboratory of Structural Dynamics of Bridge Engineering,Chongqing 400067;China Merchants Chongqing Communications Technology Research and Design Institute Co.,Ltd.,Chongqing 400067)

机构地区：[1]桥梁工程结构动力学国家重点实验室,重庆400067 [2]招商局重庆交通科研设计院有限公司,重庆400067

出　　处：《公路交通技术》2020年第5期52-57,共6页Technology of Highway and Transport

摘　　要：为解决高烈度地震区中小跨径梁桥减隔震装置橡胶制品在大气环境中的耐久性问题,提出一种滑板支座和新型预压限位挡块组合的桥梁抗震体系,采用有限元数值模拟分析的方法,对该体系的地震响应规律进行研究,结果表明,该体系能够有效降低桥墩的地震内力和位移,是一种可行的中小跨径桥梁抗震体系。In order to solve durability problem of rubber used in vibration reduction and isolation devices for medium--span and small-span beam bridges in high-intensity earthquake areas under atmospheric environment,a bridge seismic system with a combination of a slide bearing and a preloading limit device is proposed.Its seismic response rule is studied through finite element numerical simulation analysis.The results show that the system can effectively reduce the seismic force and displacement of the bridge,and it is a feasible medium--span and small-span bridges seismic system.

关 键 词：预压 限位挡块 桥梁 抗震 

分 类 号：U422.55[交通运输工程—道路与铁道工程]