一种框架－剪力墙结构的动力分析方法

On Dynamic Analysis of Frame-Shear-Wall Structure

从平面问题出发提出了一种适用于剪力墙结构的单元刚度矩阵，引入内部自由度，对该单元刚度矩阵进行了改进，并结合该单元提出了一种框架－剪力墙结构动力分析的简化模型。算例表明：新方法计算规模小，计算效率高，精度好，简便易行。

Many high-rise buildings are being built in China. For preliminary design, there is an obvious need of simplified method of analysis. The present paper is one such method and is bclicvcd to be different from all previously published Chinese papers on this subject.The author proposes a simplified method called 'frame-shear-wall' model. Shear wall is considered as an equivalent beam element and its stiffness matrix can be obtained with eq. (3). The stiffness matrix of frame can be obtained with 'D' values. The matrices of both shear wall and frame can be combined to form one stiffness matrix. The number of equations corresponding to the combined matrix is the same as the number of stories of the building. This combined stiffness matrix is the simplified model needed for dynamical analysis.The author takes a ten-story building as numerical example. The first five bending frequencies are computed. The results arc in agreement with those of finite clement method, which is much more time-consuming.