改善RC短柱抗震性能的方法评述
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摘要
短柱在地震作用下容易发生剪切破坏,在结构设计中如何避免短柱及对短柱进行有效加强以提高其抗震性能是结构抗震设计的重要课题之一.本文系统阐述了结构设计中避免RC短柱及改善短柱抗震性能的方法,指出了现有各种方法的特点及应用范围,并着重对几种新方法的原理进行了探讨.在实际工程设计当中应根据结构的特点,综合考虑各方法的优劣,选择合理的方法,以有效改善RC短柱的抗震性能.
In a high-rise RC structure,the dimension of column section is usually too large due to the limitation of the axial-compression ratio of column,and thus can result in short column at the bottom floor.Short columns are prone to be brittle shear failure which may result in damage and even collapse of the structures during an earthquake.The schemes for improving the seismic behavior of RC short columns are reviewed in this paper and their characteristics and application scope are analyzed.In addition,the principles of several new methods are discussed.Finally,some suggestions for the future research and application of those schemes are presented.
In a high-rise RC structure,the dimension of column section is usually too large due to the limitation of the axial-compression ratio of column,and thus can result in short column at the bottom floor.Short columns are prone to be brittle shear failure which may result in damage and even collapse of the structures during an earthquake.The schemes for improving the seismic behavior of RC short columns are reviewed in this paper and their characteristics and application scope are analyzed.In addition,the principles of several new methods are discussed.Finally,some suggestions for the future research and application of those schemes are presented.
引文
[1]钱国芳,童岳生,白国良等.配置不同形式箍筋的钢筋混凝土短柱抗震性能试验研究[J].西安冶金建筑学院学报,1991,23(3):248-257.QIAN Guo-fang,TONG Yue-sheng,et al.sExperi mental research on Earthquake-Resistant Behavior of R.C ShortColumns Tied With Different Types of Combined Stirrup[J].Journal of Xi an University of Architecture&technology,1991,23(3):248-257.
[2]姜维山,白国良.配复合箍、螺旋箍、X形筋钢筋混凝土短柱的抗震性能及抗震设计[J].建筑结构学报,1994,15(1):2-16.JANG Wei-shan,et al.Seismic Behavior and Structural Design of RC Stub Columns with Tied stirrups,Spiral Stir-rups and X-Shape Bars[J].Journal of Building Structures,1994,15(1):2-16.
[3]Y Tanaka,Y Ro,et al.Strengthening of Reinforced Concrete Columns by Central Reinforcing element[A].Proc.11th WCEE,Acapulco,Mexico,1996:Ref.No.00744.
[4]范重,钱稼茹,吴学敏.核芯配筋柱抗震性能试验研究[J].建筑结构学报,2001,22(1):14-19.FAN Zhong,QIANJia-ru,WU Xue-min.Experi mental Study on Seismic Behavior of Concrete Columns with Cen-tral reinforcement[J].Journal of Building Structures,2001,22(1):14-19.
[5]李忠献,代崇阳.钢筋混凝土分体柱的抗震机理[J].地震工程与工程振动2007,27(3):41-46.LI Zhong-xian,Dai Chong-yang.Seianic Mechanism of Reinforced Concrete Split column[J].Earthquake Engi-neering and Engineering Vibration,2007,27(3):41-46.
[6]Y.Tanaka,Y.Kaneko,Hammi Yashiro,Younggon Ro,et al.Hybrid Steel Reinforced Concrete structure:Strengthing Reinforced Concrete Columns by Central Reinforcing Steel Element[A].Proc.12th World Conf.onEarthquake Engineering[C].Sydney,2000.
[7]郭子雄,刘阳,黄秋来.高轴压比核心型钢混凝土柱抗震性能试验研究[J].哈尔滨工业大学学报,2007,39(Sup.2):167-171.GUO Zi-xiong,LI U Yang,HUANG Qiu-lai.Experi mental Study on Seismic Behaviour of Core Steel reinforcedConcrete Columns[J].Journal of Harbin Institute of Technology,2007,39)(Sup.2):5-11.
[8]Bridge R Q,Martin D,O Shea.Behaviour of Thin-Walled Steel Box sections with or without Internal Restraint[J].Journal of Constructional Steel Research,1998,47:73-91.
[9]曹宝珠,张耀春.方形薄壁钢管混凝土柱管壁的宽厚比限值[J].哈尔滨工业大学学报,2004.36(12):1713-1716.CAO Bao-zhu,ZHANG Yao-chun.Li mit of Width-Thickness Ratio of Steel Plates in Concrete Filled Square thin-Walled Steel Tube Columns[J].Journal of Harbin Institute of Technology,2004.36(12):1713-1716.
[10]Tomii M,Sakino K,Xiao Y,et al.Earthquake Resisting Hysteretic Behavior of Reinforced Concrete Short Col-umns Confined by Steel tube[A].Proceedings of the International Speciality Conference on Concrete Filled SteelTubular Structures[C].Harbin,China,August 1985,119-125.
[11]Yoshi mura K,Kukuchi K,Kuroki M.Seismic Shear Strengthening Method for Existing Reinforced Concrete shortcolumns[C].Proceedings of ACI Conference on Evaluation and Rehabilitation on Concrete Structures and Innova-tions in Design[A].ACI SP-128,Vol.2,Hong Kong,December,1991,1065-1079.
[12]肖岩.套管钢筋混凝土柱结构的发展和展望[J].土木工程学报,2004.37(4):8-12XIAO Yan.Development and Prospects of Tubed Reinforced Concrete Column structures[J].China Civil Engi-neering Journal,2004.37(4):8-12
[13]孙彦仕,姜维山,赵鸿铁等.分段外包钢板箍RC柱抗震性能的试验研究[J].西安冶金建筑学院学报,1992,24(2):220.SUN Yan-shi,JIANG Wei-shan,et al.An Experi ment Study on the Seismic Behavior of SPH-Confined Short Col-umn With Compression,Moment and shearing[J].Journal of Xi an University of Arch.&technology,1992,24(2):220.
[14]郭子雄,张杰,杨勇.设置外包预应力钢板箍RC短柱抗震性能研究[J].哈尔滨工业大学学报,2006.38(1):140-144.GUO Zi-xiong,ZHANGJie,YANG Yong.Study on the Seismic Performance of RC Column Confined by pres-trssed Steel Plate Hoops[J].Journal of Harbin Institute of Technology,2006.38(1):140-144.
[15]ACI Committee 440.Guide for the Design and Construction of Externally Bonded FRP Systems for StrengtheningConcrete structures[S].ACI Committee 440,2001.
[2]姜维山,白国良.配复合箍、螺旋箍、X形筋钢筋混凝土短柱的抗震性能及抗震设计[J].建筑结构学报,1994,15(1):2-16.JANG Wei-shan,et al.Seismic Behavior and Structural Design of RC Stub Columns with Tied stirrups,Spiral Stir-rups and X-Shape Bars[J].Journal of Building Structures,1994,15(1):2-16.
[3]Y Tanaka,Y Ro,et al.Strengthening of Reinforced Concrete Columns by Central Reinforcing element[A].Proc.11th WCEE,Acapulco,Mexico,1996:Ref.No.00744.
[4]范重,钱稼茹,吴学敏.核芯配筋柱抗震性能试验研究[J].建筑结构学报,2001,22(1):14-19.FAN Zhong,QIANJia-ru,WU Xue-min.Experi mental Study on Seismic Behavior of Concrete Columns with Cen-tral reinforcement[J].Journal of Building Structures,2001,22(1):14-19.
[5]李忠献,代崇阳.钢筋混凝土分体柱的抗震机理[J].地震工程与工程振动2007,27(3):41-46.LI Zhong-xian,Dai Chong-yang.Seianic Mechanism of Reinforced Concrete Split column[J].Earthquake Engi-neering and Engineering Vibration,2007,27(3):41-46.
[6]Y.Tanaka,Y.Kaneko,Hammi Yashiro,Younggon Ro,et al.Hybrid Steel Reinforced Concrete structure:Strengthing Reinforced Concrete Columns by Central Reinforcing Steel Element[A].Proc.12th World Conf.onEarthquake Engineering[C].Sydney,2000.
[7]郭子雄,刘阳,黄秋来.高轴压比核心型钢混凝土柱抗震性能试验研究[J].哈尔滨工业大学学报,2007,39(Sup.2):167-171.GUO Zi-xiong,LI U Yang,HUANG Qiu-lai.Experi mental Study on Seismic Behaviour of Core Steel reinforcedConcrete Columns[J].Journal of Harbin Institute of Technology,2007,39)(Sup.2):5-11.
[8]Bridge R Q,Martin D,O Shea.Behaviour of Thin-Walled Steel Box sections with or without Internal Restraint[J].Journal of Constructional Steel Research,1998,47:73-91.
[9]曹宝珠,张耀春.方形薄壁钢管混凝土柱管壁的宽厚比限值[J].哈尔滨工业大学学报,2004.36(12):1713-1716.CAO Bao-zhu,ZHANG Yao-chun.Li mit of Width-Thickness Ratio of Steel Plates in Concrete Filled Square thin-Walled Steel Tube Columns[J].Journal of Harbin Institute of Technology,2004.36(12):1713-1716.
[10]Tomii M,Sakino K,Xiao Y,et al.Earthquake Resisting Hysteretic Behavior of Reinforced Concrete Short Col-umns Confined by Steel tube[A].Proceedings of the International Speciality Conference on Concrete Filled SteelTubular Structures[C].Harbin,China,August 1985,119-125.
[11]Yoshi mura K,Kukuchi K,Kuroki M.Seismic Shear Strengthening Method for Existing Reinforced Concrete shortcolumns[C].Proceedings of ACI Conference on Evaluation and Rehabilitation on Concrete Structures and Innova-tions in Design[A].ACI SP-128,Vol.2,Hong Kong,December,1991,1065-1079.
[12]肖岩.套管钢筋混凝土柱结构的发展和展望[J].土木工程学报,2004.37(4):8-12XIAO Yan.Development and Prospects of Tubed Reinforced Concrete Column structures[J].China Civil Engi-neering Journal,2004.37(4):8-12
[13]孙彦仕,姜维山,赵鸿铁等.分段外包钢板箍RC柱抗震性能的试验研究[J].西安冶金建筑学院学报,1992,24(2):220.SUN Yan-shi,JIANG Wei-shan,et al.An Experi ment Study on the Seismic Behavior of SPH-Confined Short Col-umn With Compression,Moment and shearing[J].Journal of Xi an University of Arch.&technology,1992,24(2):220.
[14]郭子雄,张杰,杨勇.设置外包预应力钢板箍RC短柱抗震性能研究[J].哈尔滨工业大学学报,2006.38(1):140-144.GUO Zi-xiong,ZHANGJie,YANG Yong.Study on the Seismic Performance of RC Column Confined by pres-trssed Steel Plate Hoops[J].Journal of Harbin Institute of Technology,2006.38(1):140-144.
[15]ACI Committee 440.Guide for the Design and Construction of Externally Bonded FRP Systems for StrengtheningConcrete structures[S].ACI Committee 440,2001.
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