钢管混凝土提篮拱桥施工过程结构分析

Structural Analysis for Construction Process of Concrete-filled Steel Tubular X-arch Bridge

以跨径112m钢管混凝土提篮拱桥为例,采用大型有限元软件Midas civil建立空间计算模型对结构施工过程进行了有限元模拟,分析了施工过程中结构的应力和变形情况,为桥梁结构施工控制提供了依据。该桥成桥线形与设计线形吻合良好,施工控制效果显著。

The paper take a Concrete-Filled Steel Tubular X-arch bridge with a span of 112-meters as an example and established a 3D computational model by adopting the large-scale finite element analysis software-midas civil,meanwhile made a simulation of the construction process.The paper also analyzed the stress and the distortion of the structure in the construction process and provides some reference for the control of the structural construction.The alignment of built bridge is in accord with the expectations,and the construction control has significant effect.