大跨度钢管混凝土拱桥稳定性分析

Long-span CFST arch bridge stability analysis

简要介绍了钢管混凝土拱桥线性和非线性稳定性分析原理,以某钢管混凝土拱桥为例,建立了有限元分析模型,采用大型通用有限元分析程序ANSYS对其施工及运营阶段的稳定性进行了分析,根据分析结果指出,在施工及运营阶段的稳定性分析中应该考虑非线性的影响。

This paper introduced the linear and nonlinear stability analysis theory of CFST arch bridge,taking a CFST arch bridge as example,established finite-element analysis model,adopt large general finite element analysis program ANSYS analysed the stability of its construction and operation stage,according to the analysis results point out,nonlinear influence should be considered in the stability analysis of construction and operation stage.