行波激励下大跨钢管混凝土拱桥反应分析  

THE EFFECT OF TRAVELING WAVE ON SEISMIC RESPONSE OF LONG-SPAN CONCRETE FILLED STEEL TUBE ARCH-BRIDGE

作　　者：董杰[1] 张晶[1] 南锟[1] 

机构地区：[1]北京工业大学,北京100022

出　　处：《工业建筑》2008年第z1期506-509,605,共5页Industrial Construction

基　　金：北京工业大学研究生科技基金支持项目

摘　　要：钢管混凝土拱桥目前在我国得到广泛的应用,研究这类桥型的抗震性能有着很强的实践意义。以千岛湖大桥为研究对象,利用MIDAS软件建立模型分析,运用动态时程分析法,采用行波激励研究两个拱脚基础在同一地震波作用,但视波速不同情况下钢管混凝土桥的抗震性能,并与一致激励的情况做比较,得出不同视波速下结构内力变化规律,为以后的相关研究提供参考。Concrete filled steel tube arch-bridge has been applied wildly in our country,the research on this kind of bridge become more and more important.It was analyzed the seismic response of this kind of bridge through input the traveling wave into the skewback,and established the model with MIDAS soft.It was also compared the different effects between uniform excitation and traveling wave to the bridge,and the conclusion of the state of the structure with different traveling waves was given.

关 键 词：钢管混凝土拱桥 行波激励 时程分析 有限元程序 

分 类 号：U448.22[建筑科学—桥梁与隧道工程] U441.3[交通运输工程—道路与铁道工程]