There are three main methods by far, nonlinear finite element method, idealized structural unit method and progressive collapse analysis method.
目前，计算总纵极限弯矩的方法主要有三种，即非线性有限元法，理想结构单元法和逐步破坏分析法。
And the result of identify has no direct relation with the behavior of Material used, so the method can be applied to all kinds of structural unit.
并得出识别结果与结构所使用材料性质没有直接关系，因此该方法可广泛应用于各类结构构件。
It was very complicated when taking the traditional equivalent section method to calculate the section stress of steel concrete structural unit under its normal working condition.
对于钢筋混凝土构件在正常使用状态下的截面应力计算，用传统的“等效截面法”计算十分复杂。
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