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矩阵位移法中何为单元分析?何为整体分析?

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正确答案:

单元分析:把结构离散成有限个较小的单元,分析单元的内力与位移之间的关系,建立所谓单元刚度矩阵或单元柔度矩阵。

整体分析:把各单元集合成原来的结构,使各单元满足原结构的几何条件、平衡条件,从而建立整个结构刚度方程或柔度方程,以求解原结构的位移和内力。

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