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基于MPA方法的结构滞回耗能计算

, PP. 33-38

Keywords: 滞回耗能,模态Pushover分析,地震需求,等效单自由度体系

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Abstract:

在能量反应分析中,滞回耗能是最具明确工程意义的而又便于工程应用的能量指标,可用以衡量结构的塑性累积损伤。然而,以往研究中,在计算多自由度体系的滞回耗能时,通常采用时程分析法,计算比较烦杂,不利于工程实际的应用。因此,本文提出了一种采用模态pushover分析(MPA)计算多层结构滞回耗能的简便方法,并通过两个高层结构算例,验证了该方法的精度。结果表明基于模态pushover分析的结构滞回耗能计算方法精度良好,结果可靠;对于框架结构,可以直接采用第一阶模态(倒三角)加载模式对结构进行pushover分析计算,对于高层框架剪力墙结构,必须组合高阶模态的滞回耗能计算结果。

References

[1]  Akiyama H.Earthquake resistant limit state design for buildings[M].University of Tokyo Press,Japan,1985.
[2]  Chopra A K,Goel R K.Amodal pushover analysis procedure to estimate seismic demands for buildings:theory and preliminary evaluation[R].Berkeley,CA:Report No.PEER 2001/03,Pacific Earthquake Engineering Research Center,University of California,2001.
[3]  Decanini L D,Mollaioli F.Formulation of elastic earthquake inputenergy spectra[J].Earthquake Engineering and Structural Dynamics,1998,27:1503-1522.
[4]  Fajar P,Vidic P.Consistent inelastic design spectra:hysteretic and inputenergy[J].Earthquake Engineering and Structural Dynamics,1994,23:523-537.
[5]  Housner G W.Limitdesign of structures to resist earthquakes[C]//Proceedings of 1st World Conference on Earthquake Engineering,Berkeley,California,1956.
[6]  Ordaz M ,Huerta M ,Reinoso E.Exactcomputation of input-energy spectra from Fourier amplitude spectra[J].Earthquake Engineering and
[7]  Structural Dynamics,2003,32:597-605.
[8]  Park Y J,Ang A Hs.Mechanistic seismic damage for reinforced concrete[J].Journal of Structure Engineering,ASCE.1985,111(4):722-739.
[9]  Reinhorn A M,Kunnath S K,Rodolfo V M.IDARC-2D version 4.0:Acomputer program for the inelastic damage analysis of buildings[R].Buffalo,NY:Technical Report NCEER-96-0010,National Center for Earthquake Engineering Research,1996.
[10]  Riddell R,Garcia J E.Hysteretic energy spectrum and damage control[J].Earthquake Engineering and Structural Dynamic,s 2001,30:1791-1816.
[11]  Uang C M,Bertero V V.Evaluation of seismic energy in stru ctures[J].Earthquake Engineering and Structural Dynamics,1990,19:77-90.
[12]  Ye L P,Otani S.Maxmium seismic displacem ent of inelastic system sbased on energy concept[J].Earthquake Engineering and Structu ral Dynamics,1999(6):1483-1499.
[13]  胡冗冗,王亚勇.地震动瞬时输入能量与结构最大位移反应关系研究[J].建筑结构学报,2000,21(1):71-75.
[14]  肖明葵,刘纲,白绍良.抗震结构的滞回耗能谱[J].世界地震工程,2002,18(3):110-115.

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