桥梁结构缩尺模型模拟地震振动台试验研究进展  

Study and Development on Shake Table Tests of Scaled Models of Bridge Engineering

作　　者：李勇[1,2] 闫维明[2] 刘晶波[1] 王巾杰[2] 周大兴[2] 

机构地区：[1]清华大学土木工程系,北京100084 [2]北京工业大学工程抗震与结构诊治北京市重点实验室,北京100124

出　　处：《工程抗震与加固改造》2013年第5期1-10,共10页Earthquake Resistant Engineering and Retrofitting

基　　金：国家自然科学基金项目(50978141;50978009;51008102)

摘　　要：桥梁结构型式多样、跨数及支承多、延伸长,故对其在地震动作用下动力响应的研究多为理论分析与数值模拟,少量的试验研究也由于设备的限制以单个振动台的一致地震动输入试验居多,且试验模型多为整体结构小比例缩尺模型和局部结构或构件缩尺模型,主要研究桥墩抗震性能、土-基础-结构动力相互作用、水-桥墩动力相互作用以及特殊桥梁的抗震性能等。随着国内外模拟地震振动台台阵技术的进步,已开展了一些桥梁整体结构大比例缩尺模型一致和非一致地震动输入下动力响应规律的振动台台阵试验研究。本文对国内外关于桥梁结构缩尺模型的振动台试验研究进展进行了总结与归纳,可为今后开展桥梁结构抗震性能的振动台试验研究提供参考。With unique characteristics such as various types, multiple spans and supports as well as long extensions, bridge engineering shows prominent importance in the structural dynamic analysis under seismic excitations. However, due to the mentioned characteristics, existing studies on the seismic dynamic response of bridge engineering are mainly focusing on theoretical and numerical analysis. The shaking table models for bridge engineering are mostly integral ones with small scales or local components of structures as traditionally only one shaking table is available during the experiments. Therefore only uniform earthquake excitations are inputted while the major research areas include seismic performance of piers, soil-foundation-structure interaction, water-pier interaction and the seismic performance of irregular bridges. As the development of multiple shaking table testing technology domestically and overseas, the study on the seismic response of large scale integral model under non-uniform earthquake excitations can be achieved on multiple shaking tables. In this paper, the relevant studies on the shaking table tests of bridge engineering for the future references are summarized.

关 键 词：桥梁工程 振动台试验 土-基础-结构相互作用 水-桥墩相互作用 非一致地震激励 

分 类 号：U446.1[建筑科学—桥梁与隧道工程]