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应用非线性有限元方法研究了索对索拱结构平面内稳定性的影响。使用牛顿拉弗森法和弧长法对荷载位移平衡路线进行跟踪研究 ,考虑了不同荷载作用及不同矢跨比对索拱结构稳定性能及变形性能的影响 ,并从中获得了一些有益的结论
The nonlinear finite element method is used to study the influence of cable on in-plane stability of cable arch structure. The Newton-Raphson method and arc-length method are used to track the equilibrium course of load displacement. The influence of different load and different ratio of span to span on the stability and deformation performance of the arch structure is considered. Some useful conclusions are obtained