帶轉換層的高層建筑結構抗震分析
[Abstract]:High-rise buildings are developed step by the economic development of the country, the rapid development of science and technology, the continuous decrease of land available for construction, the application of cement and iron and steel, and so on. The high-rise structure of every country is the symbol of the national economic strength and the improvement of the scientific research level. In the actual high-rise building structural engineering design, not only the load-bearing situation of the structure should be considered, but also the function, society and culture of the building should be fully considered. A factor in the economy, etc. In order to meet the requirements of various high-rise buildings, the upper structure should be designed into small space, the lower layer should be designed into large space, and at the same time, the structural form with transition layer should be adopted to design the structure with reasonable structure form. In this paper, PKPM and EPDAPUSH finite element analysis software are used to analyze the seismic behavior of a tall building with transfer story. The main research contents and results are as follows: 1) the seismic performance of the high-rise structure with the transfer floor is analyzed in combination with the preliminary plan of a commercial office building in a commercial square, and the modal frequency of the structure is obtained. By changing the position of the transfer layer, the mode decomposition response spectrum method is used to analyze the influence of the position of the transfer layer on the shear force and the overturning moment. The higher the location of the transfer floor, the more disadvantageous the dynamic stability of high-rise building structure under earthquake load. 3) the elastic time history checking calculation is carried out for high-rise building structure, and the variation law of displacement angle between layers and seismic shear force is investigated. The results are compared with the results obtained by the mode response spectrum method. By changing the equivalent lateral stiffness ratio of the model, the response spectrum analysis is carried out, and the influence of the equivalent lateral stiffness ratio on the displacement and shear distribution of the structure is studied. 4) the PUSHOVER analysis of the high-rise building structure is carried out. The results show that the maximum interstory displacement angle of the structure is less than the limit value specified in the code, and the structure can satisfy the seismic fortification requirement of strong earthquake.
【學位授予單位】:湘潭大學
【學位級別】:碩士
【學位授予年份】:2017
【分類號】:TU973.31
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