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利用Sap2000有限元软件建立L型框架结构模型,在此基础上加上X形支撑,分别进行模态分析,得到布局的基本动力特性。对模型进行双向反应谱分析,得出层间位移和层间位移角等参数。让体系在不同地震波进行弹性时程分析。结果表明加支撑有助于提升平面不规则框架结构的抗震性能。
The L-shaped frame structure model is established by Sap2000 finite element software. Based on this, the X-shaped support is added and the modal analysis is carried out respectively to obtain the basic dynamic characteristics of the layout. Two-way response spectrum analysis of the model was made, and parameters such as interlayer displacement and interlayer displacement angle were obtained. Let the system conduct elastic time history analysis on different seismic waves. The results show that adding bracing helps to improve the seismic performance of plane irregular frame.