【摘要】 介绍某展览馆有悬挂展台的钢管立体桁架屋盖体系的结构设计,并且对该结构的动力特性进行了探讨研究。使用有限元分析软件sap2000分别建立了悬挂展台和钢屋盖的独立模型与二者的整体模型,对结构进行了各荷载组合下的静力分析与设计;并且对结构进行了动力分析,通过模态分析研究了结构的自振特性,明确了悬挂展台与钢屋盖动力特性的相互影响,采用振型分解反应谱法和弹性时程分析法对结构进行了抗震分析,给出了地震作用下结构的动力响应规律。更多还原

【Abstract】 The structural design of a three-dimensional steel pipe truss roof system with a suspended booth in an exhibition hall is introduced in this paper.And research of its dynamic characteristics was discussed.By using the finite element analysis software SAP2000 independent booth model,independent steel roof model and global model established.With these models,the static analysis of multi-load combinations was calculated and the dynamic behavior was studied.By modal analysis,the structural resonance characteristics and the interaction between the suspended booth and the steel roof were studied.The characters of seismic responses were provided with the methods of response spectrum method and elastic time-history method.更多还原