不同荷载形式下变刚度框剪结构分析

Analysis of Frame-shear Wall with Variable Stiffness under Different Load

通过对变刚度框剪结构进行层单元模型分析,并考虑多振型因素的影响,推导出了变刚度框剪结构单元在受到不同地震荷载形式下的位移、内力公式。同时运用MATLAB编制的软件程序对实例进行了计算,结果表明在相同条件下考虑变刚度情况比现有的规范方法计算所得位移要小。

In this paper, the formulae for inner forces and displacements of frame-shear wall structure with variable lateral rigidity along height which is under different load are deduced. In this procedure the story arrangement method is used and the multi-mode factor is considered. At the same time the MATLAB software is developed. It is used to calculate an example of frame-shear wall. In the same condition, the result shows that the displacement obtained from the software by considering the variable lateral rigidity along height is smaller than those obtained from methods recommended in current standards.