【摘要】 结合 Fleming和 Nazmy的分析方法 ,将斜拉桥几何非线性平面分析方法扩展到进行空间分析 .针对在进行斜拉桥非线性分析时运算结果很容易发生不收敛的情况 ,使用较为有效的收敛准则及方法以保证程序收敛并给出有效的结果 ,从而解决了斜拉桥几何非线性分析中 ,特别是空间分析中涉及到的不平衡荷载的限值问题和荷载步的步长选取问题更多还原

【Abstract】 This paper combines Fleming’s and Nazmy’s methods to extend the geometrical nonlinear plane analysis method into space analysis for cable stayed bridges. To solve the non convergent problem that can easily occur in the nonlinear analysis process for a cable stayed bridge, this analytic method adopts more effective convergence criterion and approach to ensure program convergence and usable results. So the value limitation of non equilibrium load and the selection for that load can be resolved in the analysis. The example in the paper shows the reasonable and satisfied results.更多还原