斜拉桥主梁在荷载作用下构件应力影响分析  

On influential analysis of composite stress of main girder of cable-stayed bridge under loading effect

作　　者：魏新良[1] 

机构地区：[1]新疆交通职业技术学院立弓公路设计所

出　　处：《山西建筑》2009年第29期310-312,共3页Shanxi Architecture

摘　　要：通过使用有限元软件Ansys10.0,建立斜拉桥3D模型,对荷载作用下主梁顶板、底板、横梁等部件应力进行仿真分析,得出顶板在使用荷载作用下以受压为主,压应力不大,底板受力较顶板复杂,拉压现象并存,最大拉应力发生在最外层拉索10 m前后。By using the finite element software Ansys10.0,the paper establishes the 3D model of the cable-stayed bridge,undertakes the simulation analysis of the composites stress,such as the top plate of main girder,the bottom plate and the cross beam.It is concluded that the top plate is mainly stressed under the loading,and its stress is not big,while the bottom plate is more complicated and it has tension and compression,its largest tensile stress occurs at 10 meters around the outermost shell cable.

关 键 词：斜拉桥 荷载 三维模型 主梁 应力 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]