非对称钢管混凝土拱桥整体稳定性有限元分析

The Whole Stability Analysis by Fea Method of the Dissymmetrical Steel Concrete Arch Bridge

在大跨度拱桥中 ,稳定性问题至关重要。通过某铁路非对称中承式拱桥稳定性问题的有限元分析 ,探讨影响稳定性的因素。

To the large span concrete filled steel tube bridge,the instability problem is most important.In this paper,we computed and analysized the instability of the railway mid carry arch bridge through the FE model. Furthermore we discussed the factors which influence instability critical coefficient of the bridge. The results of this paper can be valuable for the similar bridges.