Dual none-linearity finite element method is used to analysis the whole behavior and ultimate load-carrying capacity in plane of Dongguan Shuidao Bridge.
采用双重非线性方法，分析了东莞水道特大桥结构受力全过程和面内极限承载力。
When the in-plane stability of such arch is in control of the bridge design, Transverse wind load has a little influence on the stability factor and ultimate load carrying capacity.
当此类拱桥出现面内稳定控制设计时，横向风载的作用对拱桥的稳定系数和极限承载力影响较小。
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