高烈度地震区高墩连续梁桥适宜约束体系研究  

Research on the Suitable Restraint System for High Pier Continuous Beam Bridges in High-intensity Areas

作　　者：李攀 张聪正 牟林 刘得运 LI Pan;ZHANG Cong-zheng;MU Lin;LIU De-yun(Henan Yellow River Expressway Co.Ltd.,Zhengzhou 450000,China;CCCC Highway Bridges National Engineering Research Center Co.Ltd.,Beijing 100088,China)

机构地区：[1]河南省黄河高速公路有限公司,郑州市450000 [2]中交公路长大桥建设国家工程研究中心有限公司,北京市100088

出　　处：《公路》2025年第4期163-168,共6页Highway

基　　金：河南省科技计划项目,项目编号2021-2-2。

摘　　要：针对高烈度地震区高墩连续梁桥普遍存在静动力性能差的技术难题,以安罗黄河特大桥副桥为研究对象,开展了适宜约束体系研究,在静、动力响应研究的基础上,提出了静力作用下设置4个固定墩,且墩梁连接处设置摩擦摆减隔震支座的约束体系。结果表明,该体系有效减小了制动力和运营风荷载产生的下部结构内力,同时在地震作用下发挥了减震耗能作用,有效改善桥梁静、动力受力性能,解决了高烈度地震区高墩连续梁桥设计中的关键技术难题。本研究可以为类似高烈度区桥梁约束体系设计提供借鉴。In response to the technical problem of poor static and dynamic performance of high pier continuous beam bridges in high-intensity earthquake areas,a suitable constraint system study is conducted on the auxiliary bridge of the Anluo Yellow River Major Bridge.Based on the research on static and dynamic response,a constraint system is proposed with four fixed piers under static action and friction pendulum seismic isolation bearings at the pier beam connection.The results show that the system can effectively reduce the internal forces of the lower structure caused by braking force and operating wind load,while also playing a role in shock absorption and energy dissipation under earthquake action,effectively improving the static and dynamic stress performance of the bridge,solving the key technical problems in the design of high pier continuous beam bridges in high-intensity earthquake areas,and providing reference for the design of constraint systems for bridges in similar high-intensity areas.

关 键 词：桥梁工程 连续梁桥 约束体系 静力分析 摩擦摆支座 动力分析 

分 类 号：U442.55[建筑科学—桥梁与隧道工程]