摘要
随着我国经济的发展,超限高层建筑越来越多,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办公楼采用静力弹塑性和动力弹塑性分析方法进行了研究分析。结果表明:对于超高层结构,由于高阶振型的影响显著,push-over方法中荷载的加载方式等需进一步研究,以使其分析结果满足设计要求。动力弹塑性分析方法即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。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,对某超限高层进行了分析,得到了满意的结果,对指导设计起到积极的作用。
With the development of our country economy, more and more super high buildings are being built,how to assess and ensure its reliability during severe earthquake,is one of the problem in seismic studies.Based on Static Push-over Method and dynamic analysis method,this paper studied the research method for the high structures during severer earthquake.The results show that for the super high structure,the influence of high mode is of importance;the way to apply the load should be studied further so the analysis result can satisfy the design requirement.Dynamic non-linear analysis,i.e.,time history method proceeds from the beginning to the end of the earthquake.It can compute the reaction of the structure at each moment of the earthquake wave.This analysis method needs more workload,but in spite of this shortage,its application has a splendid future with the development of computer technology.On the basis of the result,the super high building structure is analyzed and the result is satisfactory and useful to the design work.
出处
《中国西部科技》
2009年第23期17-19,共3页
Science and Technology of West China
关键词
超限高层建筑
静力弹塑性分析
动力弹塑性分析
地震记录
Super high building structures
Static push-over method
Dynamic non linear analysis
Earthquake record
