近场地震作用下桥梁结构动力响应研究进展  

Advances in Researches of Structural Dynamic Response of Bridges under Near-fault Ground Motions

作　　者：唐光武[1,2] 于雯 谢皓宇 刘海明[1,2] TANG Guangwu;YU Wen;XIE Haoyu;LIU Haiming(State Key Laboratory of Bridge Engineering Structural Dynamics,Chongqing,400067;China Merchants Chongqing Communications Technology Research&Design Institute Co.,Ltd.,Chongqing 400067;School of Civil Engineering,Chongqing Jiaotong University,Chongqing 400074)

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 [3]重庆交通大学土木工程学院,重庆400074

出　　处：《公路交通技术》2023年第1期60-68,共9页Technology of Highway and Transport

基　　金：国家自然科学基金重点项目(12032008)

摘　　要：针对当前近场地震动特性和桥梁近场地震动响应方面的研究进展,从近场地震动强度指标、地震动拟合、地震动反应谱特征3个方面综述了近场地震动特性的研究现状,并梳理了梁式桥、拱桥、斜拉桥、悬索桥等不同结构型式的桥梁在近场地震作用下的动力响应特性研究进展,论述和比较了相关研究方法,总结归纳了现有近场地震作用下桥梁结构动力响应在今后有待进一步深入研究的若干问题及发展方向。In view of the current research progress of near-fault ground motion characteristics and seismic responses of bridge structures,the paper introduces the research status of near-fault ground motion characteristics from the near-fault ground motion intensity measure,the artificial ground motion simulation and the response spectrum features all three aspects in detail.And the research progress,analysis and research methodologies comparison of dynamic response characteristics of different bridge structural types are discussed including girder bridge,arch bridge,cable-stayed bridge,and suspension bridge under the action of near-fault ground motions.Finally,some remaining issues to be further studied in structural dynamic response of bridges under near-fault ground motions and future development directions are summarized and proposed.

关 键 词：近场地震动 强度指标 地震动输入拟合 反应谱 桥梁结构响应 

分 类 号：U442.55[建筑科学—桥梁与隧道工程]