【摘要】 巨型框架结构由于其平面布置的灵活性和以空间整体受力为特征得到了建筑工程广泛的应用。本文运用有限元软件SAP2000,对主框架梁数量相同而非均匀布置的几种巨型框架结构进行线性时程分析,比较几种巨型框架结构的抗震动力响应。计算结果表明,当巨型梁数量相同而非均匀布置时,随着巨型梁向下布置结构自振周期减小,楼层侧移减小,而顶层速度增大,顶层加速度先减小后增大,楼层剪力也增大。因此结构设计时应合理布置巨型梁,从而增强结构的抗震性能。更多还原

【Abstract】 Because of its flexibable layout and characterized by the force as a whole,Mega-frame structure is more and more widely used in constructions.Using the finite element software SAP2000,this paper analyzed linear time-history of several kinds of Mega-frame Structures in which the mega beams were distributed non-uniformly with the same number.Then compare the seismic response behavior of these Mega-frame Structures.The results show that,the giant beam is non-uniform distributed while having the same number,with the arrangement of the giant beam down,the structural vibration period reduced,the Lateral displacement of floor decreased,the speed of top floor increased,the acceleration of top floor decreased first and then increased,the shear of floor also increased.To enhance seismic behavior of structure,mega beams should be distributed reasonably while designing structures.更多还原