基于SAP2000的小高层建筑结构抗震性能分析

Seismic performance analysis of small high-rise building based on SAP2000

以某10层钢筋混凝土框架结构建筑为例,分别建立未设支撑的模型1和设置防屈曲支撑的模型2,借助SAP2000有限元分析软件平台对此进行了模态分析、反应谱分析、时程分析,包括自振周期、顶点位移、层间位移角对比分析以及是否满足抗震规范等。结果表明:结构增设防屈曲支撑后,抗震性能得到显著提升,并且可以大幅提高抗侧移刚度和变形能力等性能指标。

Taking a small 10-story high-rise building as an example,the building structure is a reinforced concrete frame structure.Model 1 without support and model 2 with anti-buckling support are established respectively.Modal analysis and response to this are performed with the help of the SAP2000 finite element analysis software platform.Spectrum analysis,time history analysis.The analysis process includes the analysis of the natural vibration period,the displacement of the apex,the comparison of the displacement angle between the layers,and whether the seismic code is met.The results show that the anti-buckling support is added to the structure,the seismic performance is significantly improved,and performance indicators such as lateral stiffness and deformation capacity can be greatly improved.