桥梁在长周期地震下的影响研究

英文篇名：Study on Effects of Long Period Ground Motion on Bridge
中文刊名：广东土木与建筑
英文刊名：Guangdong Architecture Civil Engineering
作者：李健 ; 吴迪
英文作者：Li Jian Wu Di(Guangdong Provincial Academy of Building Research Guangzhou 510500 ; China)
中文关键词：希尔伯特-黄变换 ; 长周期地震动 ; 减隔震桥梁 ; 地震能量反应
英文关键词：HHT ; long period ground motion ; isolated bridge ; seismic energy response
出版日期：2012-08-15
机构：广东省建筑科学研究院;
年：2012
期：08
出版单位：广东土木与建筑

摘要

为了分析长周期地震动的时频域特性及其对减隔震桥梁的影响,首先利用HHT理论分析长周期地震动的周期特性及能量特性,然后通过有限元软件建立合理的减隔震桥梁有限元模型,分析不同地震动作用下减隔震桥梁的动力响应,最后从能量的角度研究了桥梁结构的地震能量反应。
In order to analyze time-frequency domain characteristics of long-period ground motion and effects of its impact on the isolated bridge.Firstly,this paper analyze period and energy characteristics of long period ground motion.Then the rational finite element model of the isolated bridge was established.Analyze seismic response of different period ground motions on the isolated bridge.Finally,study energy response of the bridge on the angle of energy.

引文

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