大跨径斜拉钢管混凝土拱桥空间稳定性分析  

Spatial Stability Analysis of Long Span Cable Stayed Concrete Filled Steel-Tublar Arch Bridge

作　　者：赵跃宇[1] 刘伟长[1] 杨相展[1] 

机构地区：[1]湖南大学土木工程学院,长沙市410082

出　　处：《公路》2006年第8期68-71,共4页Highway

摘　　要：在考虑几何和材料非线性的基础上,运用大型通用有限元软件AN SY S,对某座大跨径斜拉钢管混凝土拱桥进行了空间稳定性分析。采用3种稳定分析方法,分别对3种不同工况进行了稳定性分析,计算结果表明,几何非线性和材料非线性对其稳定性影响很大。The spatial stability of a long span cable stayed concrete filled steel-tublar arch bridge is analyzed by the common finite element method software-ANSYS, on the basis of consideration of geometric nonlinearity and material nonlinearity. The stability of three load cases is studied by three types of methods. The results indicate that the influences of geometrical nonlinearity and material nonlinearity on the stability is greater.

关 键 词：钢管混凝土拱桥 稳定性 几何非线性 材料非线性 

分 类 号：U448.29[建筑科学—桥梁与隧道工程]