钢筋混凝土宽肢异形柱受剪承载力试验及理论研究
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摘要
近年来,异形柱小高层住宅越来越多。异形柱小高层框架结构体系中,由于自重的增加,柱轴力加大。为了满足柱轴压比的要求,需增大异形柱的肢宽,当柱肢宽厚比为4~5时,则成为宽肢异形柱。目前,对宽肢异形柱的研究还很少,且尚无适用的设计规范,这限制了该结构体系的发展。为了适应宽肢异形柱结构体系的发展要求,对其进行研究己成必然。由于宽肢异形柱的脆性破坏特征更为明显,研究抗剪性能具有重要意义。
     对24根(11根L形和13根T形)宽肢异形柱进行低周往复荷载作用下受剪承载力的试验研究。结果表明,宽肢异形柱的受剪性能和受剪承载力均与加载角和柱肢宽度密切相关,肢宽厚比对受剪承载力的影响不大。另外,分别得出了L形和T形截面宽肢异形柱沿两个主轴方向的抗剪承载力分量的相关曲线。
     通过普通异形柱的受剪承载力设计公式在宽肢异形柱设计中的适用性研究,认为用该公式计算宽肢异形柱偏于安全,可以用来进行宽肢异形柱受剪承载力的设计。通过对异形柱受剪承载力的影响因素进行灰色关联度分析,得出异形柱受剪承载力的影响因素中,关联度依次是按轴压比、配箍率、肢宽厚比、混凝土抗拉强度、纵筋配筋率。通过对宽肢异形柱受剪承载力进多元线性回归分析,得出宽肢异形柱受剪承载力的计算公式,并通过对回归计算公式进行偏下限处理,得到适用于往复加载时的宽肢异形柱受剪承载力建议设计公式。
     对L形和T形宽肢异形柱建立了有限元分析模型,计算结果和试验结果吻合,计算模型能较好的模拟混凝土柱的受剪破坏情况,有利于对宽肢异形柱的受剪承载力进行进一步的分析。
     对异形柱进行了考虑地震作用效应组合时的承载力计算公式可靠度分析,计算所得可靠指标能满足抗震要求。对异形柱受剪承载力计算公式可靠指标受各因素的影响规律进行了研究,结果表明,计算公式可靠指标随剪跨比和配箍率增大而减小,随混凝土强度、截面面积、荷载比等的增大而提高。
In recent years, there are more and more small high-rise residential withspecial-shaped columns. Due to the increase of weight in frame structure system ofsmall high-rise residential with special-shaped columns, the column axial force isincreasing. It needs to increase limb width of special-shaped column in order to meetthe requirements of axial compression ratio, when the column width to thickness ratiois4-5, it becomes broad-limb special-shaped column. At present, the research ofbroad-limb special-shaped column is rarely, and with no applicable designspecifications, which greatly limits the development of this structural system. In orderto adapt to the development requirements of broad-limb special-shaped columnstructure system, the research has become inevitable. Due to the obvious brittle failurecharacteristics of broad-limb special-shaped column, it has a very importantsignificance to study on its shear performance.
     It is shown that both shear performance and shear capacity of broad-limbspecial-shaped column are closely related to loading angle and limb width, and limbwidth to thickness ratio has little effect on shear capacity form the results of test studyon shear capacity of24broad-limb special-shaped columns (11L-shaped and13Z-shaped) under the action of low cyclic loading research. In addition, the relevantcurves of shear capacity components of L-shaped and T-shaped section broad-limbspecial-shaped columns along the two directions of major axis is given respectively inthis paper.
     Through the research on the applicability of shear capacity design formula ofgeneral special-shaped columns in broad-limb special-shaped columns design, it isconsidered that it is partial to safety to calculate broad-limb special-shaped columnsby this formula from this paper, and it can be used for shear capacity design ofbroad-limb special-shaped columns. Through grey correlation degree analysis onshear capacity influence factors of special-shaped columns, it is concluded that thecorrelation degree decreases in the order of axial compression ratio, stirrup ratio, limbwidth to thickness ratio, concrete tensile strength, longitudinal reinforcement ratio,and shear span ratio in the shear capacity influence factors of special-shaped columns.Through multiple linear regression analysis on the shear capacity of broad-limbspecial-shaped columns and treatment of approaching to a lower limit on the regression results, the proposed design formula of shear capacity of broad-limbspecial-shaped column can be concluded.
     The finite element analysis model on L-shaped and T-shaped broad-limbspecial-shaped columns has been established, the calculation results and experimentalresults are consistent, and calculation models can better simulate shear failureconditions of concrete columns, which will help to further analyze shear capacity ofbroad-limb special-shaped columns.
     The reliability analysis of bearing capacity calculation formula on special-shapedcolumns considering the combination of seismic effects has been carried out, and thecalculated reliability index can satisfy the requirements of specification. The result ofstudy on influence regularity of various factors on reliability index of shear capacitycalculation formula of special-shaped columns shows that the reliability index ofcalculation formula decreases with the increase of shear span ratio and stirrup ratio,and improves with the increase of concrete strength, cross-section area, and loadingratio etc.
引文
[1]中华人民共和国国家标准,住宅设计规范(GB50096-1999),北京:建筑工业出版社,2003
    [2]中华人民共和国地方标准,钢筋混凝土异形柱结构技术规程,天津:天津市建设管理委员会,2003
    [3]中华人民共和国国家标准,混凝土结构设计规范(GB50010-2002),北京:建筑工业出版社,2002
    [4]王铁成,混凝土结构原理,天津:天津大学出版社,2002
    [5]周志祥,高等钢筋混凝土,北京:人民交通出版社,2002
    [6]L.N.Ramamurthy,T.A.Hafeez.Khan,L-Shaped Column Design For BiaxialEccentricity,Journal of Structure Engneering,1983,109(8):1903~1917
    [7]Cheng-Tzu Thomas Hsu, Biaxially Loaded L-Shaped Reinforced ConcreteColumns,Journal of Structure Engneering,1985,111(12)
    [8]Cheng-Tzu Thomas Hsu,T-Shaped Reinforced Concrete Members under BiaxialBending And Axial Compression,ACI Structural Journal,1989(4)
    [9]Mallikarjunal, Computer Aided Analysis of Reinforced Concrete ColumnsSubjected to Axial Compression and Bending-I L-Shaped Sections,Computer AndStructures,1992,44(5)
    [10]Mallikarjunal, Computer Aided Analysis of Reinforced Concrete ColumnsSubjected to Axial Compression and Bending-I T-Shaped Sections,Computer andStructures,1993,52(6)
    [11]Sinha S.N,Design of Cross(+)Section of Column,The Indian Concrete Journal,1996,70(3):153~158
    [12]刘超,钢筋混凝土L形截面双向压弯构件正截面强度、延性的试验及理论研究:[硕士学位论文],天津;天津大学,1994
    [13]申冬建,钢筋混凝土异形柱截面双向偏心受压柱受力及变形性能的理论研究:[硕士学位论文],天津;天津大学,1995
    [14]陈云霞,高云海等,T形截面钢筋砼压弯构件正截面承载力及延性,天津大学学报,1998,31(1):1~10
    [15]翁维素,高强约束混凝土T形截面双向压弯构件的研究:[硕士学位论文],天津;天津大学,1997
    [16]曹万林,王光远等,不同方向周期反复荷载作用下L形柱的性能.地震工程与工程振动,1995,15(1):67~32
    [17]曹万林等,钢筋混凝土带暗柱T形柱抗震性能试验研究,世界地震工程,1999,15(3):47~52
    [18]曹万林等,不同方向周期反复荷载作用下T形柱的性能,地震工程与工程振动,1995,15(4):76~84
    [19]卫园,冯建平等,周期反复荷载下L型截面柱的试验研究,华南理工大学学报(自然科学版),1995,23(3):44~51
    [20]冯建平,陈谦等.L形和T形截面柱正截面承载力的研究.华南理工大学学报(自然科学版),1995,23(1):54~60
    [21]王丹,黄承逵等,异形柱双偏压构件正截面承载力试验及设计方法研究,建筑结构学报,2001,22(5):37~42
    [22]周建中,陆春阳等,钢筋砼不等肢L形异形柱承载力的试验研究,西安建筑科技大学学报,2001,33(1):6~9
    [23]赵艳静,钢筋混凝土异形截面双向压弯柱延性性能的理论研究:[硕士学位论文],天津;天津大学,1996
    [24]张玉秋,钢筋混凝土异形截面双向偏心受压柱正截面承载力及纵向弯曲变形的理论研究:[硕士学位论文],天津;天津大学,1996
    [25]王文渊,钢筋混凝土异形截面构件非线性分析及其分类标准初探:[硕士学位论文],天津;天津大学,2002
    [26]曹万林等,钢筋混凝土L形柱的非线性分析,世界地震工程,1995(4):20~25
    [27]曹万林等,钢筋混凝土T形柱的非线性分析,世界地震工程,1996(2):32~37
    [28]王丹,黄承逵等,L、T形柱轴压比限值研究,工程力学,2003,20(3):134~141
    [29]崔焕平等,混凝土非线性有限元分析中的网格尺寸效应,混凝土,2007(6):27~29
    [30] Mallikarjuna, P. Mahadevappa,Computer-aided analysis of reinforced concretecolumns subjected to axial compression and bending. Part II: T-shaped sections.Compurrrs&Srrurrurcs,1994,53(6),1317~1356
    [31] Mallikarjuna, P. Mahadevappa.Computer aided analysis of reinforced concretecolumns subjected to axial compression and bending—I L-shaped sections.Computers&Structures,1992,44(5):1121~1138
    [32] W. H. Tsao, C. T. T. Hsu,A nonlinear computer analysis of biaxially loadedL-shaped slender reinforced concrete columns. Computers&Structures,1993,49(4):579~588
    [33]滕智明,邹离湘,反复荷载下钢筋混凝土构件的非线性有限元分析,土木工程学报,1996,29(2):19~27
    [34]管仲国,李建中,L形异形柱抗弯能力方向异性与合理作用效应组合研究,土木工程学报,2008,41(4):24~29
    [35]毕继红,严宗达,均布荷载下钢筋混凝土梁剪切破坏的研究.应用力学学报,1997(14):30~36
    [36] Koichi Maekawa, Xuehui An.Shear failure and ductility of RC columns afteryielding of main reinforcement. Engineering Fracture Mechanics,65(2000):335~368
    [37]康谷贻等,单调及低周反复荷载作用下异形截面框架柱的受剪性能,建筑结构学报,1997(8):22~31
    [38]徐向东等,单周及低周反复荷载作用下T形截面框架柱受剪性能的试验研究,建筑结构,1999(1):27-30
    [39]徐向东,T形截面钢筋混凝土框架柱受剪性能的试验研究:[硕士学位论文],天津;天津大学,1993
    [40]巩长江,L形截面钢筋混凝土框架柱受剪性能的试验研究:[硕士学位论文],天津;天津大学,1994
    [41]巩长江等,L形截面钢筋混凝土框架柱受剪性能的试验研究,建筑结构,1999(1):31~34
    [42]冯建平,陈谦等,混凝土L形截面柱抗剪承载力的试验研究,华南理工大学学报(自然科学版),1995,23(1):68~75
    [43]王丹,黄承逵,刘明,L、T、十形柱受剪承载力研究,土木工程学报,2005,38(7):34~38
    [44]王丹,黄承逵,刘明,异形柱斜向受剪承载力的试验研究,工程建设与设计,2006(8):57~60
    [45]赵彤,周芝兰等,高强混凝土L形截面柱抗剪承载力的试验研究,工业建筑,2002,32(4):29~32
    [46]刁波,王茜等,L形柱结构附加扭转试验及剪扭承载力分析,建筑科学与工程学报,2007,24(4):21~28
    [47]王茜,刁波等,不同加载角L形柱的试验及截面承载力分析,工业建筑,2007:38(9),53~58
    [48]王铁成,李新华等,反复荷载作用下的异形柱框架滞回性能,吉林大学学报(工学版),2007,37(1):224~228
    [49]王铁成,张学辉,两种混凝土异形柱框架抗震性能试验对比:天津大学学报,2007,40(7):791~798
    [50]王铁成等,钢筋混凝土异形柱框架试验及静力弹塑性分析,天津大学学报,2006,39(12):1457~1464
    [51]田承昊,王铁成等,低周反复荷载作用下钢筋混凝土异形柱框架的滞回性能分析,应用科技,2007,34(2):69~72
    [52]戎贤等,钢筋混凝土异形柱框架结构抗震性能试验研究,自然灾害学报,2006,15(3):135~138
    [53]郑汉兵,曹万林等,底部矩形柱上部异形柱框架结构弹塑性地震反应分析,世界地震工程,2003,19(2):116~121
    [54]郭棣,宽肢异形柱的试验研究:[博士学位论文],陕西;西安建筑科技大学,2001
    [55]吴建营等,混凝土异型柱的抗剪全过程分析,结构工程师,2002(2):17~24
    [56]吴建营,异形截面柱在低周反复荷载作用下的抗剪性能与理论研究:[硕士学位论文],上海;同济大学,2001
    [57]李杰,吴建营等,L形和Z形宽肢异形柱低周反复荷载试验研究,建筑结构学报,2002,23(1):9~15
    [58]江见鲸,钢筋混凝土结构非线性有限元分析,陕西科学技术出版社,2002
    [59]博弈创作室,ANSYS9.0经典产品基础教程与实例详解,北京:中国水利水电出版社,2006
    [60]孙兆英,许云云,宽肢T形混凝土异型柱的有限元分析,唐山学院学报,2005,18(1):106~108
    [61]刘思峰,郭天榜,党耀国等,灰色系统理论及其应用,科学出版社,1999
    [62]邓聚龙,灰理论基础,华中科技大学出版社,2002
    [63] ASCE-ACI Committee445on Shear and Torsio,Recent Approaches to ShearDesign o f Structural Concrete,Journal of the Structural Engineer,1998,124(12):1375~1417
    [64]Ritter, W.,Die Bauweise Hennebique,Schweizerische Bauzeitung(Zurich),1899,33(7):59~61
    [65]M rch,Emil,Concrete-steel Construction,English translation of the3rd Germanedition, McGraw-Hill Book Co., New York,1909
    [66]Williams, A,钢筋混凝土结构设计,北京:中国水利水电出版社,2002
    [67]汪一骏,混凝土结构(一)基本构件,北京:中国建筑工业出版社,1993
    [68]Mitchell, Denis, and Collins, Michael P.,Diagonal compression field theory-arational model for structural concrete in pure torsion, ACI Journal, Proceedings,1974,71(8):396~408
    [69]Collins, Michael P.,Towards a rational theory for RC members in shear,Proceeding, ASCE,1978,104(4):649~666
    [70]Collins, Michael P., and Mitchell, Denis,Shear and torsion design ofPre-stressed and non-pre-stressed concrete beams, PCI Journal,1980,25(5):32~100
    [71]Vecchio, Frank J., and Collins, Michael P.,The modified compression-fieldtheory for reinforced concrete elements subjected to shear,ACI Journal, Proceedings,1986,83(2):219~231
    [72]Vecchio, Frank J., and Collins, Michael P.,Predicting the response ofreinforced concrete beam subjected to shear using modified compression field theory,ACI structural Journal,1988,85(3):258~268
    [73]Michael P Collins, Denis Mitchell, Perry Adebar and Frank J Vecchio,A generalshear design method,ACI Structural Journal,1996,93(1):36~45
    [74]郑建岚,钱在兹,郑作樵,协调桁架模型在抗剪承载力中的应用,浙江大学学报(自然科学版),1998,132(5):635~642
    [75]刘道永,谢永亮,滕桃居,朱波,郑惠平,软化桁架理论在抗剪计算中的应用分析,工程力学增刊,2001:208~212
    [76]Ramirez,J.G. and Breen, J.E.,Evaluation of a modified truss-model approachfor beam in shear,Proceedings American Concrete Institute,1991,188(5):562~571
    [77]董春敏,不等肢配箍矩形截面框架柱斜截面受剪承载力试验研究:[博士学位论文],天津;天津大学,2007
    [78]王铁成译,钢筋混凝土建筑保证延性型抗震设计指南,.天津:天津大学建筑工程学院,2000
    [79]杨建江,康谷贻,钢筋混凝土框架短柱复合受力强度分析模型,天津大学学报,1997(4):472~478
    [80]王娴明,建筑结构试验,北京:清华大学出版社,1988
    [81]Marayan strength,Cracking and deformation similitude in reinforced T beamsunder bending and shearing,ACI Journal,1971(3)
    [82]中华人民共和国国家标准,《建筑结构可靠度设计统一标准》GB50068-2001,北京:中国建筑工业出版社,2001
    [83]赵国藩等著,结构可靠度理论,北京:中国建筑工业出版社,2006
    [84]Dan M. Frangopol, Yutaka Ide, A new look at reliability of reinforced concretecolumns. Structural Safety,1996,18(2/3):123~150
    [85]K.V.G.D Balaji,Reliability analysis of RC T-shaped column sections.IndianConcrete Journal,2001,75(3)
    [86]胡德炘,马坤贞,钢筋砼结构可靠度的研究,建筑结构学报,1987(3):16~22
    [87]莫小宁,高强钢筋混凝土梁受剪性能研究:[硕士学位论文],天津;天津大学,2008
    [88]贺钰,钢筋混凝土结构受剪承载力的可靠性分析:[硕士学位论文],天津;天津大学,2002
    [89]管品武,陈萌等,混凝土框架柱抗剪承载力计算公式的可靠度分析探讨,世界地震工程,2004,20(4):59~63.
    [90]高小旺,鲍霭斌等,地震作用的概率模型及其统计参数,地震工程与工程振动,1985,5(1):13~22
    [91]欧进萍,段宇博等,结构随机地震作用及其统计参数,哈尔滨建筑工程学院学报,1994,27(5):1~9
    [92]赵成刚,尹之潜,地震作用与其它荷载的组合方法,地震工程与工程振动,1987,
    [93]马宏旺等,钢筋混凝土柱抗震可靠度分析,工业建筑,2001,31(10):58~60
    [94]朱平华,樊玲等,混凝土柱“强剪弱弯”设计可靠度对随机变量的敏感度分析,工业建筑,2005,35(9):97~100
    [95]中华人民共和国国家标准,建筑结构设计统一标准(GBJ68-84),北京:中国建筑工业出版社,1984
    [96]中华人民共和国国家标准,建筑结构可靠度设计统一标准(GB50068-2001)北京:中国建筑工业出版社,2001
    [97]中华人民共和国行业标准,混凝土异形柱结构技术规范(JGJ149-2006),北京:中国建筑工业出版社,2006
    [98]中华人民共和国国家标准,建筑抗震设计规范(GB50011-2001),北京:中国建筑工业出版社,2001
    [99]郝鑫,矩形截面钢筋混凝土框架柱双向受剪承载力与可靠度分析:[硕士学位论文],天津;天津大学,2009
    [100]C.Minowa,N.Ogawa,T.Hayashida,I.Kogoma,T.Okada, Dynamic and staticcollapse tests of reinforced-concrete columns. Nuclear Engineering and Design,1995,269~276
    [101]欧进萍,刘会仪,基于随机地震动模型的结构随机地震反应谱及其应用,地震工程与工程振动,1987(3)
    [102]赵国藩,贡金鑫,赵尚信,工程结构生命全过程可靠度,北京:中国铁道出版社,2004
    [103]沈在康,混凝土结构设计新规范应用讲评,北京:中国建筑工业出版社,1993
    [104]张新培,建筑结构可靠度分析与设计,科学出版社,2001
    [105]《建筑结构设计统一标准》问题专栏——五六七八——建筑结构构件可靠度的计算,《建筑结构设计统一标准》编委会设计组长
    [106]夏涛,张新培,异形柱正截面承载力可靠度校核的Monte-Carloβ球法,四川建筑科学研究,2006,32(4):7~11
    [107]邵永健,轻骨料混凝土梁受剪承载力的计算及其可靠度分析,建筑结构,2006,36(9):58~60
    [108]杨伟军,赵传智,施楚贤,土木工程结构可靠度理论与设计,北京:人民交通出版社,1999
    [109]袁林华,宽肢T形截面钢筋混凝土框架柱受剪性能的试验研究:[硕士学位论文],天津;天津大学,2006
    [110]杜琛,低周反复荷载作用下L形截面宽肢异形柱受剪性能试验研究:[硕士学位论文],天津;天津大学,2006

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