空间协同分析时，采用超元法（每个单元由多根杆组成）计算等效柱的侧移刚度矩阵，自由度成倍减少。
The method is applied to calculate lateral stiffness matrix in space cooperating analysis and the the degree of freedom can be greatly decreased.
如果考虑楼板的刚度足够大，利用传统的D值法可以直接计算出相关柱的侧移刚度。
If the stiffness of the floor stab can be considered as rigid enough, the lateral stiffness of the correlative columns could be calculated directly using conventional D-value method.
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