| 铁路矩形空心桥墩延性抗震设计简化计算方法 |
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| 引用本文： | 谢海清,杨国静,何庭国.铁路矩形空心桥墩延性抗震设计简化计算方法[J].世界地震工程,2010,26(1). |
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| 作者姓名： | 谢海清 杨国静 何庭国 |
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| 作者单位： | 1. 西南交通大学,土木学院,四川,成都,610031;中铁二院土建一院,四川,成都,610031
2. 中铁二院土建一院,四川,成都,610031 |
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| 摘 要： | 介绍了铁路工程抗震规范提供的钢筋混凝土桥墩延性设计简化计算方法;同时对大偏压矩形截面构件的曲率延性系数简化计算公式进行了理论推导,并结合各国规范的塑性铰等效长度计算公式,得到构件的位移延性计算公式。以大瑞线某桥为工程实例,分别采用规范提供的方法及理论推导的公式进行计算,2种方法计算得到该桥矩形空心桥墩的位移延性系数基本一致,能为今后同类桥梁设计提供一定的借鉴。
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| 关 键 词： | 矩形空心桥墩 抗震 延性设计 简化方法 |
Simplified method for ductile seismic design of railway rectangular hollow piers |
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| XIE Haiqing,YANG Guojing,HE Tingguo.Simplified method for ductile seismic design of railway rectangular hollow piers[J].World Information On Earthquake Engineering,2010,26(1). |
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| Authors: | XIE Haiqing YANG Guojing HE Tingguo |
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| Institution: | XIE Haiqing1,2,YANG Guojing2,HE Tingguo2(1.School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,China,2.China Railuay Eryuan Engineering Group Co.,Ltd,China) |
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| Abstract: | Simplified methods for ductile seismic design provided by code for seismic design of railway engineering are presented.A simplified formula for calculating curvature ductility coefficient of rectangular concrete section compressed eccentrically is deduced theoretically.Combining with formulas for calculating the equivalent length of the plastic hinges in the codes of many countries,the formula for displacement ductility coefficients is obtained.Then based on one bridge of DaLi-RuiLi railway line,displacemen... |
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| Keywords: | rectangular hollow pier seismic resistance ductile design simplified method |
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