基于ANSYS的高層鋼結(jié)構(gòu)抗震及穩(wěn)定性分析
[Abstract]:At present, steel structures have been widely used in a variety of complex tall buildings. Because of the variety of shape and span of many high-rise buildings, the difficulty of analysis and the precision of analysis are very high, so the seismic performance analysis and stability analysis of steel structures are very important. In this paper, a high-rise frame structure with a mega frame beam is used as an example, and its vibration characteristics, such as period, frequency, mode shape, etc., are obtained by modal analysis with ANSYS. On this basis, the response spectrum of the structure is analyzed, and the displacement and displacement angle curves, the deformation diagram and the stress cloud diagram of the structure are obtained. In addition, the author selects Tianjin wave to carry on the time history analysis to the structure, obtains the structure stress distribution cloud diagram, the deformation cloud picture, the structure displacement and the displacement angle curve and so on. Compared with the results of reaction spectrum analysis, some conclusions of engineering reference value are obtained. Finally, the linear buckling analysis of the structure is carried out. On the basis of the linear buckling analysis, the geometric and material double nonlinear buckling analysis of the structure is carried out, and the buckling mode, the weak part of the buckling and the buckling load are obtained. Through the analysis of these data, the influence of the giant beam on the performance of the structure is evaluated. At the same time, this paper also introduces the basic steps of various analytical functions of ANSYS, as well as the problems to be paid attention to in the analysis. At last, some unsolved problems are put forward, including buckling load combination, dynamic buckling analysis and buckling coefficient.
【學(xué)位授予單位】:西南交通大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2013
【分類號(hào)】:TU973.13
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