实际计算表明，这个方法比变刚度法有更大的适用性。
Through calculations it is found that this method is more applicable than the variable stiffness method.
非线性分析的方法，除采用一般的变刚度法之外，还采用了改进的BFGS法。
In the methods of nonlinear analysis, along with the normal variable stiffness methods, the improved BFGS method is used.
本文采用变刚度的矩阵位移法分析无粘结预应力混凝土网格梁的加载全过程。
This paper presents a matrix structural analysis of variable stiffness on the complete loading history of prestressed concrete grids with unbonded tendons.
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