钢箱斜跨拱桥的稳定分析

以实际工程为背景,建立空间钢箱斜跨拱桥有限元模型,通过对其临界荷载系数的求解,对全桥稳定性进行分析。就主梁、拱肋静风荷载,活载偏载,杆非保向力作用,拱肋、主梁刚度等影响因素进行分析对比,并给出这种异型拱桥稳定性的一些特点。

Analysis of Stability of Arch Bridge in Steel Box Diagonal-Span

As background with practical project,the finite element model for arch bridge in space steel box diagonal-span is founded Through the medium of solution of its critical load's coefficient,the analysis of stability of entire bridge is made.There also analysis and contrast of the factors such as the main girde,static wind load of arch rib,partial live load along with rigidity of the main girder.In addition some characteristics for stability of this sort of heteromorphic arch bridge.