通过几何、材料双重非线性分析，讨论主要几何参数对结构弹塑性受力性能的影响。
Geometrically and materially nonlinear analyses (GMNA) were carried out to analyze the effects of several geometric parameters on the elastic-plastic behavior of the structure.
再采用数值分析方法，包括线性特征值屈曲分析、几何非线性分析及几何、材料双重非线性分析，研究了不同加劲肋对钢筒仓仓壁稳定性能的影响。
The paper analyses the stability of rib slab on method of energy, the formula of longitudinal critical force is deduced, and rational arrangement of stiffening rib is discussed.
应用所编制的程序，进行了平板、曲壳以及板式门架的双重非线性屈曲分析。
Using the correlative program, buckling analysis was made with plates, shells and portal frame made of plates.
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