| 近断层地震作用下串联隔震体系下部结构层间位移角响应分析 |
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| 引用本文： | 杜永峰,张尚荣,李慧.近断层地震作用下串联隔震体系下部结构层间位移角响应分析[J].甘肃科学学报,2012,24(4):8-11. |
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| 作者姓名： | 杜永峰 张尚荣 李慧 |
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| 作者单位： | 1. 兰州理工大学防震减灾研究所,甘肃兰州 730050;兰州理工大学西部土木工程防灾减灾教育部工程研究中心,甘肃兰州 730050
2. 兰州理工大学防震减灾研究所,甘肃兰州,730050 |
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| 摘 要： | 建立了串联隔震体系模型,并编制MATLAB程序对一实际工程的下部子结构进行近断层地震响应分析.结果表明,地震动时上部子结构产生与下部子结构方向相反的作用力,使下部子结构振动明显减弱,对下部子结构运用时程分析得到最大层间位移角为1/555;随地震烈度的增大,地下室层间位移角增大,一、三类场地土上,近场地震动所得地下室层间位移角大于远场相应值,二类场地土其结果相反,且均满足框架剪力墙结构罕遇地震下层间位移角的要求.
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| 关 键 词： | 近断层 串联体系 隔震结构 层间位移角 |
Response Analysis of Inter-story Displacement Angle of the Substructure of Series Isolated System under Near Fault During the Earthquake |
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| DU Yong-feng
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ZHANG Shang-rong
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LI Hui.Response Analysis of Inter-story Displacement Angle of the Substructure of Series Isolated System under Near Fault During the Earthquake[J].Journal of Gansu Sciences,2012,24(4):8-11. |
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| Authors: | DU Yong-feng ZHANG Shang-rong LI Hui |
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| Institution: | a,b(a.Institute of Earthquake Protection and Disaster Mitigation;b.Western Center of Disaster Mitigation in Civil Engineering of Ministry of Education,Lanzhou University of Technology,Lanzhou 730050,China) |
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| Abstract: | A series isolated system model is established,and MATLAB is used to analyze the substructure response under near fault.The results show that the upper structure generated a force opposite in direction to the lower structure,so that the substructure vibration was obviously slacked.The maximum inter-story displacement angle of the substructure by means of time-history response is 1/555;when the seismic intensity increases,the inter-story displacement angle of the substructure increases.In site Ⅰ and site Ⅲ,the basement inter-story displacement angle in near fields during the earthquake is greater than the corresponding value of far field;the results are opposite in site Ⅱ,and they can satisfy requirements of inter-story displacement angle of the frame-shear wall in rare earthquakes. |
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| Keywords: | near fault series system isolated structure inter-story displacement angle |
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