中承式钢管混凝土拱桥非线性稳定性分析

Nonlinearity Stability Analysis of Semi-supported CFST Arch Bridge

利用大型通用有限元程序建立了金华双龙大桥主桥——中承式钢管混凝土拱桥的三维空间有限元模型,计算了桥梁结构的稳定安全系数,对桥梁的失稳特征进行了分析。

A three-dimensional finite element model for Shuanglong Bridge, which is a half-through concrete filled steel tubular （CFST） arch bridge, was established by using the universal finite element program. The stability safety coefficients of the structure of the bridge were calculated through the application of the finite element analysis software. The instability characteristics of the bridge were analyzed.