近断层地震动对高层建筑结构抗震性能的影响
|
摘要
近断层地震地面运动区别于远场地震,具有滑冲效应特性和向前方向性效应特性.其中,具有单方向速度脉冲和阶跃式永久位移的滑冲效应对长周期结构影响较大.取1999年Turkey地震中台站SKR带有滑冲效应的近断层地震记录作为输入获得弹性和弹塑性反应谱,并详细分析具有不同大小线性特征周期的单自由度体系从线性发展到非线性的整个过程中滑冲效应的作用.以某典型的钢筋混凝土剪力墙高层建筑结构为例,具体研究近断层地震滑冲效应对结构抗震性能的影响.结果表明,近断层地震滑冲效应除了对较长周期的高层结构抗震性能具有不利影响之外,对可能产生较大非线性变形的短周期结构的影响同样不可忽视.
Near-fault ground motion with characteristics of fling step and forward directivity is significantly different from far-fault ground motion,during which fling step with permanent static displacement offset resulting in one-sided velocity pulses could be very effective in causing damage to longer period structures.The record with fling step was selected from the 1999 Turkey earthquake at station SKR.Based on the elastic and elastoplastic response spectrum,a single degree of freedom system with different linear fundamental periods and yield strengths was used to investigate the fling effects.At the same time,a typical reiforced concrete shear wall high-rise building was adopted to assess the seismic performance subjected to near-fault groud motion with fling effects.Results show that near-fault ground motion with fling-step significantly affects the performance of high-risen structure with longer period,at the same time,for the shorter period structure,fling effects can not be ignored once structure goes to remarkable nonlinear state.
Near-fault ground motion with characteristics of fling step and forward directivity is significantly different from far-fault ground motion,during which fling step with permanent static displacement offset resulting in one-sided velocity pulses could be very effective in causing damage to longer period structures.The record with fling step was selected from the 1999 Turkey earthquake at station SKR.Based on the elastic and elastoplastic response spectrum,a single degree of freedom system with different linear fundamental periods and yield strengths was used to investigate the fling effects.At the same time,a typical reiforced concrete shear wall high-rise building was adopted to assess the seismic performance subjected to near-fault groud motion with fling effects.Results show that near-fault ground motion with fling-step significantly affects the performance of high-risen structure with longer period,at the same time,for the shorter period structure,fling effects can not be ignored once structure goes to remarkable nonlinear state.
引文
[1]Stewart J P,Chiou S J,Bray J D,et al.Ground motionevaluation procedures for performance-based design[J].SoilDynamics and Earthquake Engineering,2002,22:765.
[2]李爽,谢礼立.近场问题的研究现状与发展方向[J].地震学报,2007,29(1):102.LI Shuang,XIE Lili.Progress and trend on near-field problemsin civil engineering[J].Acta Seismolo Sinica,2007,29(1):102.
[3]Bray J D,Rodriguez-Marek A.Characterization of forward-directivity ground motions in the near-fault region[J].SoilDynamics and Earthquake Engineering,2004,24(11):815.
[4]Hall J F,Aagaard B T.Fundamentals of the near-sourceproblem[C]//Proceedings of the 5th Caltrans Seismic ResearchWorkshop Sacramento:[s.n.],1998:10.
[5]Abrahamson N.Incorporating effects of near fault tectonicdeformation into design ground motions[EB/OL].[2001-10-26].http://mceer.buffalo.edu/outreach/pr/abrahamson.asp.
[6]Mavroeidis G P,Papageorgiou A S.A mathematicalrepresentation of near-fault ground motions[J].Bulletin of theSeismological Society of America,2003,93(3):1099.
[7]Yang D,Pan J,Li G.Inter-story drift ratio of buildingstructures subjected to near-fault ground motions based ongeneralized drift spectral analysis[J].Soil Dynamics andEarthquake Engineering,2010,30:1182.
[8]Zhang Y,Iwan W D.Active interaction control of tall buildingssubjected to near-field ground motions[J].Journal ofStructural Engineering,2002,128(1),69.
[9]Zhang Y,Iwan W D.Protecting base-isolated structures fromnear-field ground motion by tuned interaction damper[J].Journal of Engineering Mechanics,2002,128(3):287.
[10]Hall J F,Heaton T H,Halling M W,et al.Near-source groundmotion and its effects on flexible buildings[J].EarthquakeSpectra,1995,11(4):569.
[11]Tothong P,Cornell C A.Structural performance assessmentunder near-source pulse-like ground motions using advancedground motion intensity measures[J].Earthquake Engineering&Structural Dynamic,2008,37:1013.
[12]Somerville P G.Engineering characteristics of near faultground motion[C]∥SMIP 97 Seminar on Utilization of StrongGround Motion Data.Los Angeles:[s.n.],1997:9-28.
[13]Alavi B,Krawinkler H.Behavior of moment-resisting framestructures subjected to near-fault ground motions[J].Earthquake Engineering and Structural Dynamics,2004,33:687.
[14]Iwan W D.Drift spectrum:measure of demand for earthquakeground motions[J].Journal of Structural Engineering,1997,123(4):397.
[15]Chopra A K,Chintanapakdee C.Drift spectrum versus modalanalysis of structural response to near-fault ground motions[J].Earthquake Spectra,2001,17(2):221.
[16]KalkanE,Kunnath S K.Effects of fling step and forwarddirectivity on seismic response of buildings[J].EarthquakeSpectra,2006,22(2):367.
[17]杨迪雄,赵岩.近断层地震动破裂向前方向性与滑冲效应对隔震建筑结构抗震性能的影响[J].地震学报,2010,32(5):579.YANG Dixiong,ZHAO Yan.Effects of rupture forwarddirectivity and fling step of near-fault ground motions onseismic performance of base-isolated building structure[J].Acta Seismologica Sinica,2010,32(5):579.
[18]江义,杨迪雄,李刚.近断层地震动向前方向性效应和滑冲效应对高层钢结构地震反应的影响[J].建筑结构学报,2010,31(9):103.JIANG Yi,YANG Dixiong,LI Gang.Effects of forwarddirectivity and fling step of near-fault ground motion on seismicresponses of high-rise steel structure[J].Journal of BuildingStructures,2010,31(9):103.
[19]杨迪雄,李刚,程耿东.近断层脉冲型地震动作用下隔震结构地震反应分析[J].地震工程与工程振动,2005,25(2):119.YANG Dixiong,LI Gang,CHENG Gengdong.Seismic analysisof base-isolated structures subjected to near-fault pulse-likeground motions[J].Earthquake Engineering and EngineeringVibration,2005,25(2):119.
[20]杨迪雄,潘建伟,李刚.近断层脉冲型地震动作用下建筑结构的层间变形分布特征和机理分析[J].建筑结构学报,2009,30(4):108.YANG Dixiong,PAN Jianwei,LI Gang.Deformationaldistribution feature and mechanism analysis of buildingstructures subjected to near-fault pulse-type ground motions[J].Journal of Building Structures,2009,30(4):108.
[21]Chen X.Near-field ground motion from the Landers earthquake[EB/OL].[2011-02-01].http://resolver.caltech.edu/Caltech EERL:1995.EERL-95-02.
[22]Chopra A K.Dynamic of structures,theory and applications toearthquake engineering[M].2nd ed.[S.l.]:Pearson/Prentice Hall,2007.
[23]White T,Ventura C E.Ground motion sensitivity of aVancouver-style high rise[J].Canadian Journal of CivilEngineering,2004,31:292.
[24]李康宁,洪亮.结构三维弹塑性分析方法及计算机程序CANNY[J].四川建筑科学研究,2001,27(4):1.LI Kangning,HONG Liang.CANNY software for elastic andplastic analysis of 3-dimensional structure[J].Building ScienceResearch of Sichuan,2001,27(4):1.
[2]李爽,谢礼立.近场问题的研究现状与发展方向[J].地震学报,2007,29(1):102.LI Shuang,XIE Lili.Progress and trend on near-field problemsin civil engineering[J].Acta Seismolo Sinica,2007,29(1):102.
[3]Bray J D,Rodriguez-Marek A.Characterization of forward-directivity ground motions in the near-fault region[J].SoilDynamics and Earthquake Engineering,2004,24(11):815.
[4]Hall J F,Aagaard B T.Fundamentals of the near-sourceproblem[C]//Proceedings of the 5th Caltrans Seismic ResearchWorkshop Sacramento:[s.n.],1998:10.
[5]Abrahamson N.Incorporating effects of near fault tectonicdeformation into design ground motions[EB/OL].[2001-10-26].http://mceer.buffalo.edu/outreach/pr/abrahamson.asp.
[6]Mavroeidis G P,Papageorgiou A S.A mathematicalrepresentation of near-fault ground motions[J].Bulletin of theSeismological Society of America,2003,93(3):1099.
[7]Yang D,Pan J,Li G.Inter-story drift ratio of buildingstructures subjected to near-fault ground motions based ongeneralized drift spectral analysis[J].Soil Dynamics andEarthquake Engineering,2010,30:1182.
[8]Zhang Y,Iwan W D.Active interaction control of tall buildingssubjected to near-field ground motions[J].Journal ofStructural Engineering,2002,128(1),69.
[9]Zhang Y,Iwan W D.Protecting base-isolated structures fromnear-field ground motion by tuned interaction damper[J].Journal of Engineering Mechanics,2002,128(3):287.
[10]Hall J F,Heaton T H,Halling M W,et al.Near-source groundmotion and its effects on flexible buildings[J].EarthquakeSpectra,1995,11(4):569.
[11]Tothong P,Cornell C A.Structural performance assessmentunder near-source pulse-like ground motions using advancedground motion intensity measures[J].Earthquake Engineering&Structural Dynamic,2008,37:1013.
[12]Somerville P G.Engineering characteristics of near faultground motion[C]∥SMIP 97 Seminar on Utilization of StrongGround Motion Data.Los Angeles:[s.n.],1997:9-28.
[13]Alavi B,Krawinkler H.Behavior of moment-resisting framestructures subjected to near-fault ground motions[J].Earthquake Engineering and Structural Dynamics,2004,33:687.
[14]Iwan W D.Drift spectrum:measure of demand for earthquakeground motions[J].Journal of Structural Engineering,1997,123(4):397.
[15]Chopra A K,Chintanapakdee C.Drift spectrum versus modalanalysis of structural response to near-fault ground motions[J].Earthquake Spectra,2001,17(2):221.
[16]KalkanE,Kunnath S K.Effects of fling step and forwarddirectivity on seismic response of buildings[J].EarthquakeSpectra,2006,22(2):367.
[17]杨迪雄,赵岩.近断层地震动破裂向前方向性与滑冲效应对隔震建筑结构抗震性能的影响[J].地震学报,2010,32(5):579.YANG Dixiong,ZHAO Yan.Effects of rupture forwarddirectivity and fling step of near-fault ground motions onseismic performance of base-isolated building structure[J].Acta Seismologica Sinica,2010,32(5):579.
[18]江义,杨迪雄,李刚.近断层地震动向前方向性效应和滑冲效应对高层钢结构地震反应的影响[J].建筑结构学报,2010,31(9):103.JIANG Yi,YANG Dixiong,LI Gang.Effects of forwarddirectivity and fling step of near-fault ground motion on seismicresponses of high-rise steel structure[J].Journal of BuildingStructures,2010,31(9):103.
[19]杨迪雄,李刚,程耿东.近断层脉冲型地震动作用下隔震结构地震反应分析[J].地震工程与工程振动,2005,25(2):119.YANG Dixiong,LI Gang,CHENG Gengdong.Seismic analysisof base-isolated structures subjected to near-fault pulse-likeground motions[J].Earthquake Engineering and EngineeringVibration,2005,25(2):119.
[20]杨迪雄,潘建伟,李刚.近断层脉冲型地震动作用下建筑结构的层间变形分布特征和机理分析[J].建筑结构学报,2009,30(4):108.YANG Dixiong,PAN Jianwei,LI Gang.Deformationaldistribution feature and mechanism analysis of buildingstructures subjected to near-fault pulse-type ground motions[J].Journal of Building Structures,2009,30(4):108.
[21]Chen X.Near-field ground motion from the Landers earthquake[EB/OL].[2011-02-01].http://resolver.caltech.edu/Caltech EERL:1995.EERL-95-02.
[22]Chopra A K.Dynamic of structures,theory and applications toearthquake engineering[M].2nd ed.[S.l.]:Pearson/Prentice Hall,2007.
[23]White T,Ventura C E.Ground motion sensitivity of aVancouver-style high rise[J].Canadian Journal of CivilEngineering,2004,31:292.
[24]李康宁,洪亮.结构三维弹塑性分析方法及计算机程序CANNY[J].四川建筑科学研究,2001,27(4):1.LI Kangning,HONG Liang.CANNY software for elastic andplastic analysis of 3-dimensional structure[J].Building ScienceResearch of Sichuan,2001,27(4):1.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心