基于延性破坏准则的钢管混凝土圆柱低周疲劳寿命研究
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摘要
将钢筋混凝土结构的等效延性破坏准则应用于钢管混凝土圆柱的低周疲劳寿命分析,提出了钢管混凝土圆柱的低周疲劳寿命计算方法,综合考虑了结构的首超破坏和累积损伤。建立了钢管混凝土圆柱的低周疲劳寿命拟合曲线,拟合公式的相关系数为0.971;通过23根钢管混凝土圆柱的低周疲劳试验结果对提出的计算方法进行了验证。结果表明:建议计算模型能够较好地反映钢管混凝土圆柱在不同位移延性水平下的疲劳寿命。
Applying the equivalent ductility failure criterion of the reinforced concrete(RC) structure to the low-cycle fatigue life of concrete-filled steel tubular(CFST) circular columns,the computing method of the low-cycle fatigue life of CFST circular columns was presented.The first excursion failure and cumulative damage were comprehensively taken into account.The fitted curve of the low-cycle fatigue life of CFST circular columns was built,and the correlation coefficient of the fitted formula was 0.971.In addition,the suggested computing method was verified using low-cycle fatigue experiment data of 23 CFST circular columns.Results shows that the suggested computing model can better reflect the fatigue life of CFST circular columns under different displacement ductilities.
Applying the equivalent ductility failure criterion of the reinforced concrete(RC) structure to the low-cycle fatigue life of concrete-filled steel tubular(CFST) circular columns,the computing method of the low-cycle fatigue life of CFST circular columns was presented.The first excursion failure and cumulative damage were comprehensively taken into account.The fitted curve of the low-cycle fatigue life of CFST circular columns was built,and the correlation coefficient of the fitted formula was 0.971.In addition,the suggested computing method was verified using low-cycle fatigue experiment data of 23 CFST circular columns.Results shows that the suggested computing model can better reflect the fatigue life of CFST circular columns under different displacement ductilities.
引文
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[13]黄华,刘鸣.混凝土构件疲劳设计规定及相关问题探讨[J].长安大学学报:建筑与环境科学版,2004,21(3):19-23,28.HUANG Hua,LIU Ming.Discussion on Fatigue De-sign Roles of Concrete Structures and InterrelatedProblems[J].Journal of Chang'an University:Ar-chitechture and Environment Science Edition,2004,21(3):19-23,28.
[14]刘鸣,刘伯权.钢筋混凝土柱低周疲劳力学性能分析[J].长安大学学报:自然科学版,2012,32(5):65-70.LIU Ming,LIU Bo-quan.Low-cycle Fatigue Damagefor Shear Behavior of Reinforced Concrete Columns[J].Journal of Chang'an University:Natural ScienceEdition,2012,32(5):65-70.
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[19]HASELTON C B,LIEL A B,DEIERLEIN G G,et al.Seismic Safety of Reinforced Concrete Building.I:Assessment of Ductile Moment Frames[J].Journalof Structural Engineering,2011,137(4):481-491
[20]NEWMARK N M.An Engineering Approach to BlastResistant Design[J].American Society of Civil En-gineers Transactions,1956,121:45-65.
[21]窦立军,钟善桐.钢管混凝土低周疲劳的实验研究[J].哈尔滨建筑工程学院学报,1991,24(增):81-87.DOU Li-jun,ZHONG Shan-tong.The ExperimentalResearch of Low-cycle Fatigue for CFST[J].Journalof Harbin Architectural and Civil Engineering Institu-te,1991,24(S):81-87.
[22]江枣,钱稼茹.钢管混凝土组合柱变形能力计算方法[J].世界地震工程,2010,26(2):42-47.JIANG Zao,QIAN Jia-ru.Calculation Method for De-formation Capacity of Steel Tube-reinforced ConcreteComposite Columns[J].World Earthquake Engineer-ing,2010,26(2):42-47.
[23]PALM M J.MATLAB7基础教程———面向工程应用[M].黄开枝,译.北京:清华大学出版社,2007.PALM M J.Introduction to MATLAB 7for En-gineers[M].Translated by HUANG Kai-zhi.Beijing:Tsinghua University Press,2007.
[24]邱法维,杨卫东,欧进萍.钢管混凝土柱滞回耗能和累积损伤的实验研究[J].哈尔滨建筑大学学报,1996,29(3):41-45.QIU Fa-wei,YANG Wei-dong,OU Jin-ping.TestingResearch for the Dissipated Hysteric Energy and Ac-cumulated Damage of CFST Column[J].Journal ofHarbin University of Civil Engineering and Architec-ture,1996,29(3):41-45.
[2]陈宝春,陈友杰,王来永,等.钢管混凝土偏心受压应力-应变关系模型研究[J].中国公路学报,2004,17(1):24-28.CHEN Bao-chun,CHEN You-jie,WANG Lai-yong,et al.Study of Stress-strain Relation of ConcreteFilled Steel Tubular Eccentric Compression Column[J].China Journal of Highway and Transport,2004,17(1):24-28.
[3]吕西林,陆伟东.反复荷载作用下方钢管混凝土柱的抗震性能试验研究[J].建筑结构学报,2000,21(2):2-11,27.LU Xi-lin,LU Wei-dong.Seismic Behavior of Con-crete-filled Rectangular Steel Tubular Columns UnderCyclic Loading[J].Journal of Building Structures,2000,21(2):2-11,27.
[4]杜喜凯.往复荷载作用下钢管混凝土柱性能试验及理论分析[D].天津:天津大学,2001.DU Xi-kai.Experimental Research and TheoreticalAnalysis of Seismic Behavior of Concrete-filled SteelTube Beam-columns Under Cyclic Loading[D].Tian-jin:Tianjin University,2001.
[5]陈彦江,李勇,闫维明,等.大尺寸钢管混凝土柱承载力试验[J].中国公路学报,2011,24(4):33-38.CHEN Yan-jiang,LI Yong,YAN Wei-ming,et al.Bearing Capacity Test of Large Size Concrete FilledSteel Tubular Column[J].China Journal of Highwayand Transport,2011,24(4):33-38.
[6]张国伟.钢管混凝土柱在地震作用下的累积损伤性能研究[D].长沙:湖南大学,2009.ZHANG Guo-wei.Research on Cumulative SeismicDamage of CFT Columns[D].Changsha:Hunan Uni-versity,2009.
[7]丁发兴,余志武,蒋丽忠.圆钢管混凝土轴压中长柱的承载力[J].中国公路学报,2007,20(4):65-70.DING Fa-xing,YU Zhi-wu,JIANG Li-zhong.BearingCapacity of Middle Long Concrete-filled Circular SteelTubular Columns Under Axial Compression[J].ChinaJournal of Highway and Transport,2007,20(4):65-70.
[8]余志武,丁发兴.圆钢管混凝土偏压柱的力学性能[J].中国公路学报,2008,21(1):40-46.YU Zhi-wu,DING Fa-xing.Mechanical Behavior ofConcrete Filled Circular Steel Tubular Columns Un-der Eccentric Compression[J].China Journal of High-way and Transport,2008,21(1):40-46.
[9]陈彦江,李勇,闫维明,等.大尺寸钢管混凝土柱承载力试验[J].中国公路学报,2011,24(4):33-38.CHEN Yan-jiang,LI Yong,YAN Wei-ming,et al.Bearing Capacity Test of Large Size Concrete FilledSteel Tubular Column[J].China Journal of Highwayand Transport,2011,24(4):33-38.
[10]赵均海,孟晓健,刘建军,等.圆中空夹层钢管混凝土短柱的承载力[J].长安大学学报:自然科学版,2009,29(2):70-74.ZHAO Jun-hai,MENG Xiao-jian,LIU Jian-jun,et al.Bearing Capacity of Concrete-filled Double-skin Steel-tube Stub Column[J].Journal of Chang'an Universi-ty:Natural Science Edition,2009,29(2):70-74.
[11]夏桂云,曾庆元,李传习,等.复式空心钢管混凝土柱抗压刚度[J].长安大学学报:自然科学版,2003,23(4):41-45.XIA Gui-yun,ZENG Qing-yuan,LI Chuan-xi,et al.Compressive Stiffness of Composite Concrete-filledSteel Tube(CCFST)[J].Journal of Chang'an Univer-sity:Natural Science Edition,2003,23(4):41-45.
[12]张志权,赵均海,张玉芬,等.复合钢管混凝土柱轴压承载力的计算[J].长安大学学报:自然科学版,2010,30(1):67-70.ZHANG Zhi-quan,ZHAO Jun-hai,ZHANG Yu-fen,et al.Axial Bearing Capacity of Composite Concrete-filled Steel Tubular Columns[J].Journal of Chang'anUniversity:Natural Science Edition,2010,30(1):67-70.
[13]黄华,刘鸣.混凝土构件疲劳设计规定及相关问题探讨[J].长安大学学报:建筑与环境科学版,2004,21(3):19-23,28.HUANG Hua,LIU Ming.Discussion on Fatigue De-sign Roles of Concrete Structures and InterrelatedProblems[J].Journal of Chang'an University:Ar-chitechture and Environment Science Edition,2004,21(3):19-23,28.
[14]刘鸣,刘伯权.钢筋混凝土柱低周疲劳力学性能分析[J].长安大学学报:自然科学版,2012,32(5):65-70.LIU Ming,LIU Bo-quan.Low-cycle Fatigue Damagefor Shear Behavior of Reinforced Concrete Columns[J].Journal of Chang'an University:Natural ScienceEdition,2012,32(5):65-70.
[15]ZHANG G W,XIAO Y,KUNNATH S.Low-cycleFatigue Damage of Circular Concrete-filled-tube Col-umns[J].ACI Structural Journal,2009,106(2):151-159.
[16]刘伯权.抗震结构的破坏准则及可靠性分析[M].北京:中国建材工业出版社,1995.LIU Bo-quan.Criteria for Seismic Structural Damageand Reliability Analysis[M].Beijing:China BuildingMaterial Industry Publishing House,1995.
[17]PARK Y J,ANG A H S.Mechanistic Seismic DamageModel for Reinforced Concrete[J].Journal of Struc-tural Engineering,1985,111(4):722-739.
[18]PARK Y J,ANG A H S,WEN Y K.Seismic DamageAnalysis of Reinforced Concrete Buildings[J].Journalof Structural Engineering,1985,111(4):740-757.
[19]HASELTON C B,LIEL A B,DEIERLEIN G G,et al.Seismic Safety of Reinforced Concrete Building.I:Assessment of Ductile Moment Frames[J].Journalof Structural Engineering,2011,137(4):481-491
[20]NEWMARK N M.An Engineering Approach to BlastResistant Design[J].American Society of Civil En-gineers Transactions,1956,121:45-65.
[21]窦立军,钟善桐.钢管混凝土低周疲劳的实验研究[J].哈尔滨建筑工程学院学报,1991,24(增):81-87.DOU Li-jun,ZHONG Shan-tong.The ExperimentalResearch of Low-cycle Fatigue for CFST[J].Journalof Harbin Architectural and Civil Engineering Institu-te,1991,24(S):81-87.
[22]江枣,钱稼茹.钢管混凝土组合柱变形能力计算方法[J].世界地震工程,2010,26(2):42-47.JIANG Zao,QIAN Jia-ru.Calculation Method for De-formation Capacity of Steel Tube-reinforced ConcreteComposite Columns[J].World Earthquake Engineer-ing,2010,26(2):42-47.
[23]PALM M J.MATLAB7基础教程———面向工程应用[M].黄开枝,译.北京:清华大学出版社,2007.PALM M J.Introduction to MATLAB 7for En-gineers[M].Translated by HUANG Kai-zhi.Beijing:Tsinghua University Press,2007.
[24]邱法维,杨卫东,欧进萍.钢管混凝土柱滞回耗能和累积损伤的实验研究[J].哈尔滨建筑大学学报,1996,29(3):41-45.QIU Fa-wei,YANG Wei-dong,OU Jin-ping.TestingResearch for the Dissipated Hysteric Energy and Ac-cumulated Damage of CFST Column[J].Journal ofHarbin University of Civil Engineering and Architec-ture,1996,29(3):41-45.
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