本文采用直接刚度法得到刚度矩阵，用聚缩质量模型得到质量矩阵。
In this paper, the stiffness matrix has been obtained by the direct stiffness method, and the mass matrix, by the condensation mass model.
有限元法是一种离散化的方法，它可以直接用来计算荷载不同、刚度不同的各种情况。
The finite element method is a dispersed method, so it can be used directly to calculate the status for different loads, rigidity, etc.
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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