Nonlinear Seismic Response of Continuous Rigid Frame Bridge
in Longitudinal Direction

doi:10.3969 /j.issn.1674-0696.2012.02.02

Journal of Chongqing Jiaotong University(Natural Science) ›› 2012, Vol. 31 ›› Issue (2): 179-183.DOI: 10.3969 /j.issn.1674-0696.2012.02.02

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Nonlinear Seismic Response of Continuous Rigid Frame Bridge in Longitudinal Direction

Zeng Jinming，Zhu Dongsheng，Zhang Yongshui，Zhang Jie

School of Civil Engineering ＆ Architecture，Chongqing Jiaotong University，Chongqing 400074，China

Received:2011-07-18 Revised:2011-09-28 Online:2012-04-15 Published:2014-10-31

连续刚构桥顺桥向非线性地震反应研究

曾金明，朱东生，张永水，张洁

重庆交通大学土木建筑学院，重庆400074

作者简介:曾金明( 1986 － ) ，男，江西抚州人，硕士研究生，主要从事桥梁抗震及结构分析研究。E-mail: kingmingzeng@ sina． com。
基金资助:
云南省交通厅交通建设科技项目( 2010( A) 10 － a)

Abstract

Abstract: Taking a high-pier and long-span continuous rigid frame bridge as the research project，the dynamic time-history analysis model is established by using the fiber element． By inputting the actual seismic waves in longitudinal direction of different site conditions into the analysis model，their nonlinear time-history responses are analyzed respectively． Based on the analysis results，the effects of seismic response due to different site conditions are compared． And some problems needing attention in seismic design of continuous rigid bridge are pointed out． And the effect of axial compression ratio on hysteretic behavior of pier is also discussed．

Key words: continuous rigid frame bridge, seismic response, nonlinear, time-history analysis

摘要： 以一座大跨高墩连续刚构桥为对象，采用纤维单元，建立该桥的动力分析模型，沿顺桥方向分别输入不同类型场地上的实际地震动，计算其非线性时程响应。比较了场地条件对大跨高墩连续刚构桥地震响应的影响，指出了连续刚构桥墩高差异较大时抗震设计中应注意的问题，并讨论了轴压比对桥墩滞回性能的影响。

关键词: 连续刚构桥, 地震响应, 非线性, 时程分析

CLC Number:

U442

Zeng Jinming，Zhu Dongsheng，Zhang Yongshui，Zhang Jie. Nonlinear Seismic Response of Continuous Rigid Frame Bridge in Longitudinal Direction[J]. Journal of Chongqing Jiaotong University(Natural Science), 2012, 31(2): 179-183.

曾金明，朱东生，张永水，张洁. 连续刚构桥顺桥向非线性地震反应研究[J]. 重庆交通大学学报（自然科学版）, 2012, 31(2): 179-183.

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Nonlinear Seismic Response of Continuous Rigid Frame Bridge in Longitudinal Direction

连续刚构桥顺桥向非线性地震反应研究

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