某地铁上盖物业超限高层弹塑性地震反应分析
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摘要
选取5组天然波和2组人工波,采用弹塑性时程分析方法对某地铁上盖物业超限高层进行分析,研究整体结构在强震作用下的动力响应和地震损伤破坏情况并在此基础上对整个结构及相关构件抗震性能进行评估。分析结果表明:在罕遇地震作用下,该结构具有合理的屈服耗能机制,满足预先设定的抗震性能目标。
Dynamic elasto-plastic time-history analysis method was conducted to investigate an ultra-limit over-track building and five natural waves together with two artifical waves were inducted to study the dynamic response of the structure and the degree of damage of structure members under rare earthquakes,meanwhile,the seismic performance evaluation of overall structure and corresponding comporents was made.The results show that this ultra-limit building structure has effective yielding mechanism under rare earthquakes and can fulfil the pre-set design goals of the seismic performance.
Dynamic elasto-plastic time-history analysis method was conducted to investigate an ultra-limit over-track building and five natural waves together with two artifical waves were inducted to study the dynamic response of the structure and the degree of damage of structure members under rare earthquakes,meanwhile,the seismic performance evaluation of overall structure and corresponding comporents was made.The results show that this ultra-limit building structure has effective yielding mechanism under rare earthquakes and can fulfil the pre-set design goals of the seismic performance.
引文
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[2]徐培福,戴国莹.超限高层建筑结构基于性能抗震设计的研究[J].土木工程学报,2005,38(1):1-10.XU Peifu,DAI Guoying.Performance-based seismicdesign of tall building structures beyond the code specifi-cation[J].China Civil Engineering Journal,2005,38(1):1-10.
[3]娄宇,温凌燕,徐小燕,等.基于大震弹塑性时程分析的结构抗震设计[J].建筑结构,2011,41(5):1-8.LOU Yu,WEN Lingyan,XU Xiaojan.Structure seismicdesign based on elastic-plastic time-history analysis ofsevere earthquake[J].Building Structures,2011,41(5):1-8.
[4]吕西林.超限高层建筑工程抗震设计指南[M].2版.上海:同济大学出版社,2009.LV Xilin.Seismic design guidelines for tall buildings be-yond the scope of design codes[M].2nd ed.Shanghai:Tongji University Press,2009.
[5]尧国皇,王卫华,郭明.超高层钢框架钢筋混凝土核心筒结构弹塑性时程分析[J].振动与冲击,2012,31(14):137-142.YAO Guohuang,WANG Weihua,GUO Ming.Elastic-plastic time history analysis on super rise steel frame-core wall structure[J].Journal of Vibration and Shock,2012,31(14):137-142.
[6]GB50011—2010,建筑抗震设计规范[S].GB 50011—2010,Code for seismic design of building[S].
[7]JGJ3—2010,高层建筑混凝土结构技术规程[S].JGJ 3—2010 Technical specification for concrete struc-tures of tall building[S].
[8]蒋欢军,和留生,吕西林.上海中心大厦抗震性能分析和振动台试验研究[J].建筑结构学报,2011,32(11):55-63.JIANG Huanjun,HE Liusheng,LU Xilin.Analysis ofseismic performance and shaking table tests of the Shang-hai Tower[J].Journal of Building Structures,2011,32(11):55-63.
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