某型钢混凝土框架-混凝土核心筒结构的抗震性能评估
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摘要
以某混合结构为研究对象,通过振动台试验和数值分析2种手段对该混合结构的抗震性能进行了相关研究。主要利用PERFORM-3D建立了整体结构的非线性计算模型,对结构进行了弹塑性时程分析。根据结构整体的位移响应和能量耗散以及构件的变形和塑性铰开展情况,来了解在不同强度地震作用下结构的地震反应特点,同时根据预定的性能指标限值对结构的抗震性能进行了评估,并将数值分析结果与试验结果进行了对比。试验与数值分析结果均表明,该结构具有良好的抗震性能。
In order to better understand the seismic performance of the hybrid structure,numerical analysis and shaking table model testing were conducted on a real tall building constructed in Beijing.The nonlinear analytic model of the structure was established with the aid of PERFORM-3D program,and the elastoplastic time-history analysis was performed.From displacement responses and energy dissipation of the entire structure,and deformations and plastic hinge forming condition of components,the response features under different earthquake levels were obtained.Based on the predetermined allowable limits of performance indices,the seismic performance of the structure was evaluated.In the mean time,the numerical analysis results were compared with test results.Both of test results and numerical analysis results indicate that the hybrid structure has good seismic performance.
In order to better understand the seismic performance of the hybrid structure,numerical analysis and shaking table model testing were conducted on a real tall building constructed in Beijing.The nonlinear analytic model of the structure was established with the aid of PERFORM-3D program,and the elastoplastic time-history analysis was performed.From displacement responses and energy dissipation of the entire structure,and deformations and plastic hinge forming condition of components,the response features under different earthquake levels were obtained.Based on the predetermined allowable limits of performance indices,the seismic performance of the structure was evaluated.In the mean time,the numerical analysis results were compared with test results.Both of test results and numerical analysis results indicate that the hybrid structure has good seismic performance.
引文
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[12]韩小雷,唐剑秋,等.钢管混凝土巨型斜交网格筒体结构非线性分析[J].地震工程与工程振动,2009,29(4):77-84.Han X L,Tang J Q,et al.Nonlinear analysis of hugeoblique crossing lattice structure with concrete filledsteel tube[J].Journal of Earthquake Engineering andEngineering Vibration,2009,29(4):77-84.
[2]Mander J B,Priestley M J N,Park R.Theoreticalstress-strain model for confined concrete[J].ASCE,Journal of Structural Engineering,1988,114(8):1804-1826.
[3]American Society of Civil Engineer.Prestandard andcommentary for the seismic rehabilitation of buildings[R].Report No.FEMA356,Washington,D.C.,2000.
[4]郑竹,黄用军.大震下静力弹塑性分析及其在工程建模分析中的应用参数设置研究[C]//金土木用户大会CUC’08论文集,2008:101-113.
[5]Components,Elements Manual for PERFORM-3D[M].CSI,2006.
[6]Peer and Aac.Modeling and acceptance criteria forseismic design and analysis of tall buildings[R].Report No.PEER/ATC-72-1,UC,Berkeley,2010.
[7]郭子雄,杨勇.恢复力模型研究现状及存在问题[J].世界地震工程,2004,20(4):47-51.Guo Z X,Yang Y.State of the art of restoring forcemodels for RC structures[J].World Information onEarthquake Engineering,2004,20(4):47-51.
[8]陆新征,叶列平,繆志伟,等.建筑抗震弹塑性分析——原理、模型与在ABAQUS,MSC.MARC和SAP2000上的实践[M].北京:中国建筑工业出版社,2009.
[9]Tohma J,Hwang H.Hysteretic model for reinforcedconcrete containment[C]//Transaction of the 9thInternational SMiRT Conference,Lousanne,Switzerland,August 17-22,1987(1):251-256.
[10]张令心,郭丰雨,李小东.钢筋混凝土核心筒的剪切滞变模型[J].世界地震工程,2006,22(2):50-56.Zhang L X,Guo F Y,Li X D.Hysteretic shear models forreinforced concrete core-tube[J].World Information onEarthquake Engineering,2006,22(2):50-56.
[11]韩小雷,陈学伟.基于纤维模型的超高层钢筋混凝土结构弹塑性时程分析及工程应用[J].建筑结构,2010,40(2):13-16.Han X L,Chen X W.Elasto-plastic time-historyanalysis of super high-rise RC structure based on fibermodel[J].Building Structure,2010,40(2):13-16.
[12]韩小雷,唐剑秋,等.钢管混凝土巨型斜交网格筒体结构非线性分析[J].地震工程与工程振动,2009,29(4):77-84.Han X L,Tang J Q,et al.Nonlinear analysis of hugeoblique crossing lattice structure with concrete filledsteel tube[J].Journal of Earthquake Engineering andEngineering Vibration,2009,29(4):77-84.
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