| 非规则连续梁桥非线性地震反应分析 |
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| 引用本文： | 耿江玮,朱东生,向中富,包桂钰.非规则连续梁桥非线性地震反应分析[J].重庆交通大学学报(自然科学版),2011,30(2):185-189,281. |
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| 作者姓名： | 耿江玮 朱东生 向中富 包桂钰 |
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| 作者单位： | 1. 重庆交通大学土木建筑学院,重庆,400074
2. 甘肃长达路业有限责任公司,甘肃,兰州,730030 |
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| 基金项目： | 甘肃省交通厅交通建设科技项目(GJR200806) |
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| 摘 要： | 采用纤维模型分析方法,对一座墩高差异较大的非规则等跨连续梁桥进行了全桥的线性和非线性时程地震反应分析,并比较了P-△效应对该桥地震反应的影响以及线性与非线性结果的差异.分析结果表明:对于这类桥墩刚度差异较大的连续梁桥,刚度较大的矮墩是其抗震的薄弱部位,地震中损伤相对较严重;墩高较小时,P-△效应对分析结果的影响较小,线...
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| 关 键 词： | 非规则连续梁桥 线性 非线性 地震反应 P-△效应 |
Nonlinear Seismic Response Analysis of Irregular Continuous Bridge |
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| GENG Jiang-wei,ZHU Dong-sheng,XIANG Zhong-fu,BAO Gui-yu.Nonlinear Seismic Response Analysis of Irregular Continuous Bridge[J].Journal of Chongqing Jiaotong University,2011,30(2):185-189,281. |
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| Authors: | GENG Jiang-wei ZHU Dong-sheng XIANG Zhong-fu BAO Gui-yu |
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| Institution: | GENG Jiang-wei1,ZHU Dong-sheng1,XIANG Zhong-fu1,BAO Gui-yu2(1.School of Civil Engineering & Architecture,Chongqing Jiaotong University,Chongqing 400074,China,2.Gansu Provincial Changda Expressway Co.,Ltd.,Lanzhou 730030,Gansu,China) |
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| Abstract: | The linear and non-linear time-history seismic response of an irregular continuous bridge with the same span was analyzed by fiber-model method;the impact of P-Δ effect on seismic response of the bridge and differences between linear and nonlinear results were analyzed.The results showed that the short pier with higher stiffness was weak in earthquake resistance and it could be severely damaged in earthquake;the impact of P-Δ effect on the short pier was insignificart;linear results were different from non-linear results. |
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| Keywords: | irregular continuous bridge linear nonlinear seismic response P-Δ effect |
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