型钢混凝土框架—混凝土核心筒结构抗震性能分析

Analysis of seismic performance of shaped steel concrete frame–concrete core tube structure

采用Etabs软件,以某型钢混凝土框架-混凝土核心筒结构为研究对象,建立整体空间有限元模型进行模态、振型分解反应谱法及弹性时程分析;并采用midas/gen软件对该高层结构进行设防烈度及罕遇地震下的静力弹塑性时程分析。分析该建筑结构在多遇及罕遇地震作用下的地震反应,并验算了该高层建筑在多遇地震下的弹性变形及罕遇地震作用下结构的弹塑性变形。结果表明该结构满足抗震规范要求。

Using Etabs software,a shaped steel concrete frame– concrete core tube structure is taken as the research object,and an integral spatial finite element model is established for modal analysis,mode-decomposition response spectrum method,and elastic time history analysis.Midas/gen software is used for the analysis of the static elastoplas?tic time history of high-rise structure under fortification intensity and rare earthquakes,and analyzes the seismic re?sponse of the building structure under the action of multiple and rare earthquakes,and check the elastic deformation of the high-rise building under multiple earthquakes and the elasto-plastic deformation of the structure under rare earthquakes.The results show that the structure meets the seismic code requirements.