大跨径钢管砼拱桥非线性稳定性分析  

Nonlinear Stability Analysis of Large-span CFST Arch Bridge

作　　者：陈世民[1] 周仁忠[2] 

机构地区：[1]重庆大学,重庆400045 [2]重庆交通大学,重庆400074

出　　处：《重庆交通学院学报》2007年第2期9-13,共5页Journal of Chongqing Jiaotong University

摘　　要：以某钢管砼拱桥为对象,针对大跨度钢管砼拱桥的稳定问题,建立其空间有限元模型;对该大桥在施工过程及营运阶段的力学性能进行线性、非线性稳定性分析;讨论了影响稳定性安全系数的多种因数;得出的结论对今后该类桥型的设计及施工具有一定的参考价值.A spatial nonlinear model is established and the linear and nonlinear analyses of stability on a large-span CFST arch bridge are maken during its construction process and the serving phase through the Nastran structure analysis system. Discussions on various kinds of factors which would affect the stability of a CFST arch bridge are made. As a result, some important conclusions are obtained, which may be valuable for the design and construction of such kind of bridge.

关 键 词：钢管砼拱桥 非线性 稳定性 

分 类 号：U441[建筑科学—桥梁与隧道工程]