基于纤维模型方法的某钢管混凝土拱桥稳定性分析

摘要

Taking Zhijing River Super-large Bridge as the example,the paper adopts the classification fiber model to undertake the analysis and calculation of the stability of the steel tube concrete arch bridge,compares the achieved control data and Ansys finite element method,proves by the result that the fiber model method has the efficient engineering structural calculation,so as to lay the theoretic foundation for the fiber model method and opensees uses the bridge structure calculation.%以支井河特大桥为例，采用划分纤维模型的方法对钢管混凝土拱桥的稳定性进行了分析计算，并对分析所得控制数据与Ansys 有限元法作了比较，结果表明纤维模型方法可有效的用于工程结构计算，为纤维模型法及 Opensees 计算平台用于桥梁结构计算奠定了理论基础。