Dynamic response analyses and model vibration tests on seismic isolating foundation of bridge pier
Dynamic response analyses and model vibration tests on seismic isolating foundation of bridge pier
复制标题
桥墩隔震基础动力响应分析及模型振动试验
DOI：
10.2208/jsceseee.23.195s
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发表时间：
2006
期刊：
影响因子：
--
通讯作者：
O. Kiyomiya
中科院分区：
文献类型：
--
作者：
T. An;O. Kiyomiya
本文对基础隔震桥墩的振动特性和抗震性能进行了研究。隔震基础是在基础和桥墩基础之间安装砂石和聚四氟乙烯(聚四氟乙烯)等隔震材料，主要利用基础和基础之间的相对位移(滑动和摇摆)来吸收和耗散大范围地震时的能量。推导了运动控制方程，并进行了动力响应分析和单墩模型振动试验。结果表明，该隔震体系对降低地震反应具有显著的积极作用。
In this study, the oscillation behavior and the aseismicity of bridge piers with isolating foundations are investigated. An isolating foundation is formed by installing isolation materials such as sand, gravel and PTFE (Teflon sheet) between the footing and the pier foundation and mainly utilizes the relative displacements (sliding and rocking) between the footing and the foundation to absorb and dissipate energy during large-scale earthquakes. The governing equations of motion are derived and dynamic response analyses and model vibration tests on a single pier are carried out. The results show that this isolating system has a significant positive effect in decreasing responses during earthquakes.