地震动的频谱特性和持时对结构地震反应的影响研究及其现状
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摘要
多年来,国内外地震工程界存在着一个严重缺陷,即地震学与结构抗震两者之间缺乏联系。随着基于性能的地震工程学(PBEE)的出现以及不断发展,地震学的重要性日益凸显。在结构抗震设计和分析中,强震地面运动特性的变异性对于结构地震需求的影响最大,其主要可以用幅值、频谱特性和持时3个基本要素来表示。震害经验表明,各类结构的震害表现为这3个基本要素综合影响的结果。因此,通过研究强震地面运动特性对于结构地震需求的影响,将地震工程学与结构抗震有机地结合起来是一个必然的发展趋势。
The lack of a relationship between seismology and seismic resistance of structures has been a serious disadvantage in domestic and foreign earthquake engineering community over the years.Seismology is becoming more important than before with the appearance and development of performance-based earthquake engineering(PBEE).The uncertainties of earthquake ground motions,especially amplitude,frequency content and duration,are the most important factors which can influence structural seismic demands.Previous seismic disasters have shown that the comprehensive effect of three essential characteristics dramatically effected collapse and failure of all kinds of structures.Earthquake engineering and seismic resistance of structures can be combined through the research on the influence of characteristics of earthquake ground motions on structural seismic demands.
The lack of a relationship between seismology and seismic resistance of structures has been a serious disadvantage in domestic and foreign earthquake engineering community over the years.Seismology is becoming more important than before with the appearance and development of performance-based earthquake engineering(PBEE).The uncertainties of earthquake ground motions,especially amplitude,frequency content and duration,are the most important factors which can influence structural seismic demands.Previous seismic disasters have shown that the comprehensive effect of three essential characteristics dramatically effected collapse and failure of all kinds of structures.Earthquake engineering and seismic resistance of structures can be combined through the research on the influence of characteristics of earthquake ground motions on structural seismic demands.
引文
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[19]胡聿贤.地震工程学[M].2版.北京:地震出版社,2006:1-50.
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[3]Krawinkler H,Zohrei M.Cumulative damage in steel structuressubjected to earthquake ground motions[J].ComputStruct,1983,16(1-4):531-541.
[4]Hesameddin Aslani,Eduardo Miranda.Probability-based seismicresponse analysis[J].Engineering Structures,2005,27:1151-1163.
[5]Shome N,Cornell C A,Bazzurro P,and Carballo J E.Earthquake,records and nonlinear MDOF responses[R].Report No.RMS-29,Reliability of Marine Structures,Dept.of Civil Engineering,Stanford University,Stanford,CA,1997.
[6]Baker J W.Vector-Valued Ground Motion Intensity Measures forprobabilistic Seismic Demand Analysis[D].Ph.D.Dissertation,Dept.of Civil and Environmental Engineering,Stanford Universi-ty,California,2005.
[7]Iunio Lervolino and C.Allin Cornell.Record selection for Nonlin-ear Seismic Analysis of Structures[J].Earthquake Spectra,2005,21(3):685-713.
[8]Bruce A.Bolt.Seismic input motions for nonlinear strucutral analy-sis[J].ISET journal of earthquake technology,2004,41(2-4):223-232.
[9]Fatemeh Jalayer.Direct Probabilistic Seismic Anaysis:Implemen-ting Non-Linear Dynamic Assessments[D].Ph.D.Dissertation,Dept.of Civil and Environmental Engineering,Stanford Universi-ty,California,2003.
[10]Praveen K.Malhotra.Strong-motion records for site-specific analy-sis[J].Earthquake Spectra,2003,19(3):557-578.
[11]Jonathan Hancock,and Julian J.Bommer.Using spectral matchedrecords to explore the influence of strong-motion duration on inelas-tic structural response[J].Soil Dynamics And Earthquake Engi-neering,2007,27:291-299.
[12]Naeim R K.On the use of design spectrum compatible time histo-ries[J].Earthquake Spectra.1995,11(1).
[13]Barenberg M E.Inelastic response of a spectrum-compatible artifi-cial accelerogram[J].Earthquake Spectra,1989,5(3).
[14]Jorge Eduardo Carballo Arevalo.Probabilistic seismic demand a-nalysis:spectrum matching and design[D].Ph.D.Dissertation,Dept.of Civil and Environmental Engineering,Stanford Universi-ty,California,2000.
[15]Ground Motion Selection and Modification Program(GMSM)[OL].http://peer.berkeley.edu/gmsm/Organization.html.
[16]Iunio Lervolino,Gaetano,and Edoardo Cosenza.Ground motionduration effects on nonlinear seismic response[J].Earthquake En-gineering and Structural Dynamics,2006,35:21-38.
[17]Julian J B,Guido M,Jonathan H and Paola P.The influence ofstrong-motion duration on the seismic response of masonry struc-tures[J].Bulletin of Earthquake Engineering,2004,2:1-26.
[18]陈亮,李建中,盛光祖.强地面运动持时对钢筋混凝土桥墩地震需求的影响[J].振动与冲击,2008,27(11):154-159.
[19]胡聿贤.地震工程学[M].2版.北京:地震出版社,2006:1-50.
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