某复杂超限高层结构抗震计算与分析

应用SAP2000软件对某典型超限高层建筑结构进行结构抗震计算与分析,得到了结构的自振特性以及结构在各个方向的主振型;用振型分解反应谱法对结构进行了分析,得到各层间位移,并对结构进行抗震变形验算;对结构进行了在三条地震波下弹性时程分析的补充计算,并与反应谱分析结果进行了对比;根据计算分析结果以及现行有关规范,对该结构进行了超限评估,并提出了具体结论。

ANALYSIS FOR EARTHQUAKE RESISTANCE OF A HIGH- RISE OVERRUN BUILDING

In this paper,the seismic analysis of a representative high-rise overrun building are performed by using the software of SAP2000.Calculation model of the Pagoda are built based on several simplifications.With the dynamic modal analysis of the model,the self-oscillation character and the main modes of the structure are obtained.After making a seismic response spectrum analysis,internal force and story-displacement are gained,which are used to cheek the seismic deformation.As the complement of spectrum analysis,the method of elastic dynamic time history analysis is used to work out the responses of model under three earthquake waves,and the results are compared with those from spectrum analysis.On the basis of the analysis above,evaluations and conclusions are given by referring to the active codes.