基于数据库的钢管混凝土柱轴心受压承载力分析
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摘要
收集了国内外有关圆钢管混凝土轴心受压试验的数据,建立了一个共计637个试件的数据库,以混凝土强度、钢管屈服强度、钢管径厚比、构件长细比和套箍系数为参数,利用数据库对GB 50936—2014《钢管混凝土结构技术规范》中的计算式进行了偏差分析。结果表明:GB 50936—2014关于圆钢管混凝土轴心受压承载力的计算偏差受混凝土强度、钢管屈服强度、径厚比和套箍系数的影响均较小,但受长径比的影响较大。通过数据库数据的拟合,对考虑长细比的承载力折减系数的计算式进行调整,提出对材料参数限值的建议。调整和修改后,能保证GB 50936—2014推荐方法计算结果的计算偏差较小。
A wide range of experimental data of 637 concrete-filled steel tube( CFST) columns was used to evaluate the applicability of Technical Specification for Concrete-Filled Steel Tubular Structures( GB 50936—2014) in calculating the bearing capacity of circular CFST columns. The effects of concrete strength,yield strength of steel tube,diameter-to-thickness ratio of steel tube,length-to-diameter ratio of steel tube and confinement coefficient on the accuracy of prediction according to GB 50936—2014 were discussed. It was found that Chinese code calculation formula'deviation was less affected by concrete strength,yield strength of steel tube,diameter-to-thickness ratio of steel tube and confinement coefficient,but that greatly affected by length-to-diameter ratio of steel tube. Using the database for fitting analysis, the calculation formula of load-bearing capacity reduction coefficient related to slenderness ratio in Chinese code was adjusted. In addition,the adjustment suggestions of code limit of the material parameter was proposed for lowering the deviation.
A wide range of experimental data of 637 concrete-filled steel tube( CFST) columns was used to evaluate the applicability of Technical Specification for Concrete-Filled Steel Tubular Structures( GB 50936—2014) in calculating the bearing capacity of circular CFST columns. The effects of concrete strength,yield strength of steel tube,diameter-to-thickness ratio of steel tube,length-to-diameter ratio of steel tube and confinement coefficient on the accuracy of prediction according to GB 50936—2014 were discussed. It was found that Chinese code calculation formula'deviation was less affected by concrete strength,yield strength of steel tube,diameter-to-thickness ratio of steel tube and confinement coefficient,but that greatly affected by length-to-diameter ratio of steel tube. Using the database for fitting analysis, the calculation formula of load-bearing capacity reduction coefficient related to slenderness ratio in Chinese code was adjusted. In addition,the adjustment suggestions of code limit of the material parameter was proposed for lowering the deviation.
引文
[1]蔡绍怀.现代钢管混凝土结构[M].北京:人民交通出版社,2003.
[2]钟善桐.钢管混凝土结构[M].北京:清华大学出版社,2003:6-30.
[3]韩林海.钢管混凝土结构[M].北京:科学出版社,2001:8-32.
[4]中华人民共和国住房和城乡建设部.钢管混凝土结构技术规范:GB 50936—2014[S].北京:中国建筑工业出版社,2014.
[5]张翔.有限元ANSYS在钢管混凝土柱分析中的应用[J].四川建材,2013,39(6):101-102.
[6]魏华,王海军.圆形配筋钢管混凝土桥柱受压力学性能的试验研究[J].铁道学报,2015,37(1):105-110.
[7]占美森.薄壁钢管混凝土柱轴心受压承载性能研究[D].南昌:南昌大学,2007.
[8]王秋萍.薄壁圆钢管混凝土短柱的轴压试验[J].低温建筑技术,2004(6):54-56.
[9]王力尚,钱稼茹.钢管高强混凝土柱轴向受压承载力试验研究[J].建筑结构,2003,33(7):46-49.
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[11]贺锋,周绪红,唐昌辉.钢管高强混凝土轴压短柱承载力性能的试验研究[J].工程力学,2000,17(4):61-66.
[12]李斌,闻洋.钢管混凝土轴压长柱承载力的试验研究[J].地震工程与工程振动,2003,25(5):130-133.
[13]中国工程建设标准化协会.钢管混凝土结构设计与施工规程:CECS 28∶2012[S].北京:中国计划出版社,2012.
[14]谭克锋,蒲心诚,蔡绍怀.钢管超高强混凝土的性能与极限承载能力的研究[J].建筑结构学报,1999,20(1):10-15.
[15]韩林海,姜绍飞,曹宇清,等.大长细比钢管混凝土轴心受压柱承载力的试验研究[J].钢结构,1992,14(2):21-25.
[16]张素梅,王玉银.圆钢管高强混凝土轴压短柱的破坏模式[J].土木工程学报,2004,37(9):2-10.
[17]蔡绍怀,焦占拴.钢管混凝土短柱的基本性能和强度计算[J].建筑结构学报,1984,5(6):13-29.
[18]顾维平,蔡绍怀,冯文林.钢管高强混凝土的性能与极限强度[J].建筑科学,1991(1):23-27.
[19]汤关祚,招炳泉,竺惠仙,等.钢管混凝土基本力学性能的研究[J].建筑结构学报,1982(1):13-31.
[20]GEPRGOPS G,DENNIS L.Axial Capacity of Circular ConcreteFilled Tube Columns[J].Journal of Constructional Steel Research,2004,60(7):1248-1260.
[21]CHITAWADAGI M V,NARASIMHAN M C,KULKARNI S M.Axial Strength of Circular Concrete-Filled Steel Tube ColumnsDOE Approach[J].Journal of Constructional Steel Research,2010,66(10):1248-1260.
[22]DUNDU M.Compressive Strength of Circular Concrete Filled Steel Tube Columns[J].Thin-Walled Structures,2012,56:62-70.
[23]GUPTA P K,SARDA S M,KUMAR M S.Experimental and Computational Study of Concrete Filled Steel Tubular Columns Under Axial Loads[J].Journal of Constructional Steel Research,2007,63(2):182-193.
[24]YU Z W,DING F X,CAI C S.Experimental Behavior of Circular Concrete-Filled Steel Tube Stub Columns[J].Journal of Constructional Steel Research,2007,63(2):165-174.
[25]HICHEA J Z,CHAOUI K.An Experimental Behaviour of Concrete-Filled Steel Tubular Columns[J].Journal of Constructional Steel Research,2005,61:53-66.
[26]SAKINO K J.Behavior of Centrally Loaded Concrete-Filled SteelTube Short Columns[J].Journal of Structural Engineering,2004,130:180-188.
[27]姜绍飞,廖云,张昕宇,等.大长细比钢管混凝土轴压柱的力学性能[J].沈阳建筑工程学院学报(自然科学版),2002,18(1):1-4.
[28]钟善桐,何若全.钢管混凝土轴心受压长柱承载力的研究[J].哈尔滨建筑工程学院学报,1983(1):1-13.
[29]蔡绍怀,顾万黎.钢管混凝土长柱的性能和强度计算[J].建筑结构学报,1985(1):32-40.
[30]UY B,TAO Z,HAN L H.Behaviour of Short and Slender Concrete-Filled Stainless Steel Tubular Columns[J].Journal of Constructional Steel Research,2011,67(3):360-378.
[31]SCHNEIDER S P.Member Associate Axially Loaded ConcreteFilled Steel Tubes[J].Journal of Constructional Steel Research,1998,124(10):1125-1138.
[32]HAN L H,YAO G H.Experimental Behaviour of Thin-Walled Hollow Structural Steel(HSS)Columns Filled with SelfConsolidating Concrete(SCC)[J].Thin-Walled Structures,2004,42(9):1357-1377.
[33]何益斌,刘文竞,黄频,等.基于双剪统一强度理论的轴心受压钢骨-钢管混凝土短柱承载力研究[J].工业建筑,2007,47(增刊):663-665,671.
[2]钟善桐.钢管混凝土结构[M].北京:清华大学出版社,2003:6-30.
[3]韩林海.钢管混凝土结构[M].北京:科学出版社,2001:8-32.
[4]中华人民共和国住房和城乡建设部.钢管混凝土结构技术规范:GB 50936—2014[S].北京:中国建筑工业出版社,2014.
[5]张翔.有限元ANSYS在钢管混凝土柱分析中的应用[J].四川建材,2013,39(6):101-102.
[6]魏华,王海军.圆形配筋钢管混凝土桥柱受压力学性能的试验研究[J].铁道学报,2015,37(1):105-110.
[7]占美森.薄壁钢管混凝土柱轴心受压承载性能研究[D].南昌:南昌大学,2007.
[8]王秋萍.薄壁圆钢管混凝土短柱的轴压试验[J].低温建筑技术,2004(6):54-56.
[9]王力尚,钱稼茹.钢管高强混凝土柱轴向受压承载力试验研究[J].建筑结构,2003,33(7):46-49.
[10]谭克锋,蒲心诚.钢管超高强混凝土长柱及偏压柱的性能与极限承载能力的研究[J].建筑结构学报,2000,21(2):12-19.
[11]贺锋,周绪红,唐昌辉.钢管高强混凝土轴压短柱承载力性能的试验研究[J].工程力学,2000,17(4):61-66.
[12]李斌,闻洋.钢管混凝土轴压长柱承载力的试验研究[J].地震工程与工程振动,2003,25(5):130-133.
[13]中国工程建设标准化协会.钢管混凝土结构设计与施工规程:CECS 28∶2012[S].北京:中国计划出版社,2012.
[14]谭克锋,蒲心诚,蔡绍怀.钢管超高强混凝土的性能与极限承载能力的研究[J].建筑结构学报,1999,20(1):10-15.
[15]韩林海,姜绍飞,曹宇清,等.大长细比钢管混凝土轴心受压柱承载力的试验研究[J].钢结构,1992,14(2):21-25.
[16]张素梅,王玉银.圆钢管高强混凝土轴压短柱的破坏模式[J].土木工程学报,2004,37(9):2-10.
[17]蔡绍怀,焦占拴.钢管混凝土短柱的基本性能和强度计算[J].建筑结构学报,1984,5(6):13-29.
[18]顾维平,蔡绍怀,冯文林.钢管高强混凝土的性能与极限强度[J].建筑科学,1991(1):23-27.
[19]汤关祚,招炳泉,竺惠仙,等.钢管混凝土基本力学性能的研究[J].建筑结构学报,1982(1):13-31.
[20]GEPRGOPS G,DENNIS L.Axial Capacity of Circular ConcreteFilled Tube Columns[J].Journal of Constructional Steel Research,2004,60(7):1248-1260.
[21]CHITAWADAGI M V,NARASIMHAN M C,KULKARNI S M.Axial Strength of Circular Concrete-Filled Steel Tube ColumnsDOE Approach[J].Journal of Constructional Steel Research,2010,66(10):1248-1260.
[22]DUNDU M.Compressive Strength of Circular Concrete Filled Steel Tube Columns[J].Thin-Walled Structures,2012,56:62-70.
[23]GUPTA P K,SARDA S M,KUMAR M S.Experimental and Computational Study of Concrete Filled Steel Tubular Columns Under Axial Loads[J].Journal of Constructional Steel Research,2007,63(2):182-193.
[24]YU Z W,DING F X,CAI C S.Experimental Behavior of Circular Concrete-Filled Steel Tube Stub Columns[J].Journal of Constructional Steel Research,2007,63(2):165-174.
[25]HICHEA J Z,CHAOUI K.An Experimental Behaviour of Concrete-Filled Steel Tubular Columns[J].Journal of Constructional Steel Research,2005,61:53-66.
[26]SAKINO K J.Behavior of Centrally Loaded Concrete-Filled SteelTube Short Columns[J].Journal of Structural Engineering,2004,130:180-188.
[27]姜绍飞,廖云,张昕宇,等.大长细比钢管混凝土轴压柱的力学性能[J].沈阳建筑工程学院学报(自然科学版),2002,18(1):1-4.
[28]钟善桐,何若全.钢管混凝土轴心受压长柱承载力的研究[J].哈尔滨建筑工程学院学报,1983(1):1-13.
[29]蔡绍怀,顾万黎.钢管混凝土长柱的性能和强度计算[J].建筑结构学报,1985(1):32-40.
[30]UY B,TAO Z,HAN L H.Behaviour of Short and Slender Concrete-Filled Stainless Steel Tubular Columns[J].Journal of Constructional Steel Research,2011,67(3):360-378.
[31]SCHNEIDER S P.Member Associate Axially Loaded ConcreteFilled Steel Tubes[J].Journal of Constructional Steel Research,1998,124(10):1125-1138.
[32]HAN L H,YAO G H.Experimental Behaviour of Thin-Walled Hollow Structural Steel(HSS)Columns Filled with SelfConsolidating Concrete(SCC)[J].Thin-Walled Structures,2004,42(9):1357-1377.
[33]何益斌,刘文竞,黄频,等.基于双剪统一强度理论的轴心受压钢骨-钢管混凝土短柱承载力研究[J].工业建筑,2007,47(增刊):663-665,671.
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