| 波形钢腹板连续刚构桥的地震响应分析 |
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| 引用本文： | 张长青,安永日,安里鹏.波形钢腹板连续刚构桥的地震响应分析[J].桥梁建设,2011(3). |
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| 作者姓名： | 张长青 安永日 安里鹏 |
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| 作者单位： | 1. 招商局重庆交通科研设计院有限公司,重庆,400067
2. 重庆交通大学土木工程学院,重庆,400074 |
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| 摘 要： | 为研究波形钢腹板连续刚构桥地震响应特性,分别对主跨160 m的PC及波形钢腹板连续刚构桥进行时程响应分析。采用MIDAS建立2种连续刚构桥模型,分析模型基本动力特性和在3种地震波作用下的地震响应。分析结果表明:波形钢腹板连续刚构桥振型贡献率无明显集中现象;地震波作用下,桥墩及主梁产生的轴力和绕横桥向弯矩较PC连续刚构桥大,绕顺桥向弯矩较PC连续刚构桥小;主梁跨中节点位移顺、横桥向均较PC连续刚构桥大;加速度衰减速度,顺桥向较PC连续刚构桥小,横桥向较PC连续刚构桥大;在主梁截面设计中,仍以静力计算结果控制。
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| 关 键 词： | 连续刚构桥 波形钢腹板 动力特性 地震 内力 加速度 |
Analysis of Seismic Response of Corrugated Steel Web Continuous Rigid-Frame Bridge |
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| ZHANG Chang-qing,AN Yong-ri,AN Li-peng.Analysis of Seismic Response of Corrugated Steel Web Continuous Rigid-Frame Bridge[J].Bridge Construction,2011(3). |
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| Authors: | ZHANG Chang-qing AN Yong-ri AN Li-peng |
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| Institution: | ZHANG Chang-qing1,AN Yong-ri1,AN Li-peng2(1.China Merchants Chongqing Transport Research and Design Institute Co.,Ltd.,Chongqing 400067,China,2.School of Civil Engineering,Chongqing Jiaotong University,Chongqing 400074,China) |
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| Abstract: | To investigate the seismic response characteristic of corrugated steel web(CSW) continuous rigid-frame bridge,the time-history response analysis of prestressed concrete(PC) and CSW continuous rigid-frame bridges with main spans 160 m was respectively made.The MIDAS was used to set up the models for the two types of the bridges,the basic dynamic characteristics and the seismic responses of the models under the action of 3 types of seismic waves were analyzed.The results of the analysis reveal that the contri... |
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| Keywords: | continuous rigid-frame bridge corrugated steel web dynamic behavior seismicity internal force acceleration |
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