文档介绍：摘要随着我国经济的发展,超限高层建设得越来越多,在其以优美姿态吸引人们的视线,为人们提供舒适生活和办公环境的同时,如何评估和保证其在地震作用下的可靠性,是众多结构抗震工作者研究的课题。本文针对某超限高层商住楼的抗震设计进行了研究分析。本文首先对该结构进行了弹性分析,这是结构设计的基本部分,采用振型分解反应谱法对结构进行截面设计和配筋计算,以满足结构在使用阶段的强度和变形要求。在此基础上,根据我国现行的两阶段抗震设计方法,对结构进行罕遇地震下的性能分析。罕遇地震下使用的是动力弹塑性分析方法,是指弹塑性时程分析方法, 由结构初始状态逐步积分直至地震作用结束,能够计算结构构件在每个地震波记录时刻的地震反应。地震动力是一个随机的过程,结构的响应也是一样。采用不同的地震记录,会得到不同的结构内力和位移,而采用和结构所对应的反应谱f由结构类型,场地特性等确定)统计意义更相近的地震记录进行分析的结果,就会更真实地反映结构在大震下的弹塑性性能。尽管这种分析的工作量是相当大的,但随着计算机技术的发展,弹塑性时程分析方法有广泛的应用前景。本文在目前研究成果的基础上,对某超限高层项目进行了分析, 讨论了结构转换层设置高度对框支剪力墙结构刚度突变的影响以及结构转换层设置高度对框支剪力墙结构内力以及传力途径变化的影响,得到了满意的结果,对指导设计工作起到了积极的作用。关键词:超限高层建筑,转换层,罕遇地震,动力弹塑性,动力时程分析 ABSTRACT With thedevelopment of our country economy,more and more super high buildings are itsbeauties attract theattention ofthepeople and they provide sufficient fort space to our people,it isvery important to evaluate and insure itssafety(non-collapse)during severe on thedesign experience and research ofsuper high structures,this paper studied the research method forthehighstructuresduring severer earthquake. The analysis ofthe structure inelasticstage iscarried out firstly;because this isthe firststep of theseismic design,the section and itsreinforcement of structure members are designed with model analysis method SO the structure can satisfy thestrength and deformation requirement upant the above,the analysis of the structure during severe earthquake should be implemented according tothecode forseismicdesign ofbuilding. Dynamic non—linear analysis,.,timehistory method proceeds from the beginning tothe end oftheearthquake uring severer pute thereaction ofthe structure ateach moment oftheearthquake method takes the reaction ofthe structure and theearth wave as a constant value;the reaction ofthestructure isthefunction theearthquake is arandom action and SO itisthereaction ofthestructure,then different earthquake wave give different reaction,the more suitable earthquake recor