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某异型钢管混凝土拱桥地震反应分析
引用本文:李勇,闫维明,陈彦江.某异型钢管混凝土拱桥地震反应分析[J].震灾防御技术,2010,5(3):346-351.
作者姓名:李勇  闫维明  陈彦江
作者单位:北京工业大学工程抗震与结构诊治北京市重点实验室,北京,100124
基金项目:国家自然科学基金资助项目,北京市教育委员委员会科技计划重点项目 
摘    要:本文以某异型钢管混凝土拱桥为研究对象,通过ANSYS建立了结构的空间有限元模型,计算和分析了该桥的动力特性。同时,通过MATLAB程序生成拟合规范反应谱的人工地震波,并运用时程分析法计算了该桥在一维和多维输入下的地震反应,分析了该桥的地震反应规律,为钢管混凝土拱桥的抗震性能分析提供了一定的依据。

关 键 词:异型钢管混凝土拱桥  动力特性  人工地震波  时程分析
收稿时间:2010/3/15 0:00:00

Seismic Response Analysis of an Arch Bridge with Irregular Concrete-filled Steel Tube
Li Yong,Yan Weiming and Chen Yanjiang.Seismic Response Analysis of an Arch Bridge with Irregular Concrete-filled Steel Tube[J].Technology for Earthquake Disaster Prevention,2010,5(3):346-351.
Authors:Li Yong  Yan Weiming and Chen Yanjiang
Institution:Beijing Laboratory of Earthquake Engineering and Structural Retrofit, Beijing University of Technology, Beijing 100024, China;Beijing Laboratory of Earthquake Engineering and Structural Retrofit, Beijing University of Technology, Beijing 100024, China;Beijing Laboratory of Earthquake Engineering and Structural Retrofit, Beijing University of Technology, Beijing 100024, China
Abstract:Based on an arch bridge with irregular concrete-filled steel tube,a 3-D spatial finite element model is built by ANSYS to complete the dynamic characteristic analysis.The artificial seismic wave is synthesized in accordance with code’s design response spectrum by MATLAB.Structural response of the CFST arch bridge under spatial one-dimensional and multi-dimensional seismic excitation is calculated and discussed by the time-history analysis method.
Keywords:Irregular CFST arch bridge  Dynamic characteristic  Artificial seismic wave  Time-history analysis method
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