圆钢管混凝土轴压长柱的极限承载力
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摘要
基于双剪统一强度理论,考虑钢管中间主应力(径向压力)对环向拉力和纵向压力的影响,建立了钢管的承载力公式;同时,避开混凝土破坏准则中侧压影响系数的不确定性分析,根据混凝土破坏时的统一强度准则建立其承载力公式,进而叠加建立了钢管混凝土短柱的承载力公式。在此基础上,按照弹性模量理论推导出钢管混凝土长柱的稳定影响系数,建立了其极限承载力公式。结果表明,改变加权参数值,计算得出的承载力也随之发生变化。通过与相关文献中的试验值进行比较,发现试验值与计算值吻合良好。
Considering the intermediate principal stress effect of the steel tube on the circumferential tension and longitudinal compression based on the twin shear unified strength theory,a formula of bearing capacity of steel tube was established.Meanwhile,in terms of the unified strength criterion of concrete and avoiding uncertainty analysis of effect factor of circumferential compression in concrete failure criterion,the formula of bearing capacity of core concrete was established.And then by splicing the bearing capacity of short concrete-filled steel tube(CFST),the formula of bearing capacity was formed.Based on it,through elastic modulus theory,the stability effect factor of concrete-filled steel tubular long columns was deduced and then the formula of its ultimate bearing capacity was built.The results show that by altering weighted parameter value,the bearing capacity of concrete-filled steel tube is changed.The calculations are all agree well with the experiment results through comparing with the experimental values of related references.
Considering the intermediate principal stress effect of the steel tube on the circumferential tension and longitudinal compression based on the twin shear unified strength theory,a formula of bearing capacity of steel tube was established.Meanwhile,in terms of the unified strength criterion of concrete and avoiding uncertainty analysis of effect factor of circumferential compression in concrete failure criterion,the formula of bearing capacity of core concrete was established.And then by splicing the bearing capacity of short concrete-filled steel tube(CFST),the formula of bearing capacity was formed.Based on it,through elastic modulus theory,the stability effect factor of concrete-filled steel tubular long columns was deduced and then the formula of its ultimate bearing capacity was built.The results show that by altering weighted parameter value,the bearing capacity of concrete-filled steel tube is changed.The calculations are all agree well with the experiment results through comparing with the experimental values of related references.
引文
[1]张建民,郑皆连,肖汝诚.钢管混凝土拱桥吊装过程的最优化计算分析[J].中国公路学报,2005,18(2):40-44.ZHANG Jian-min,ZHENG Jie-lian,XIAO Ru-cheng.Calculation Method for Optimizing the InstallationProcess of Concrete-filled Steel Tube Arch Bridge[J].China Journal of Highway and Transport,2005,18(2):40-44.
[2]陈宝春,肖泽荣,韦建刚.钢管混凝土哑铃形拱肋灌注混凝土时的截面应力分析[J].中国公路学报,2005,18(1):73-76.CHEN Bao-chun,XIAO Ze-rong,WEI Jian-gang.A-nalysis on Stresses of Dumbbell-shaped Cross-sectionof CFST Arch Rib During Concrete Pouring Con-struction[J].China Journal of Highway and Trans-port,2005,18(1):73-76.
[3]黄文金,陈宝春.钢管混凝土桁梁受弯试验研究[J].建筑科学与工程学报,2006,23(1):29-33.HUANG Wen-jin,CHEN Bao-chun.ExperimentalResearch on Concrete-filled Steel Tube Truss GirderUnder Bending[J].Journal of Architecture and CivilEngineering,2006,23(1):29-33.
[4]丁发兴,余志武.恒高温后圆钢管混凝土轴压短柱弹塑性分析[J].建筑科学与工程学报,2006,23(1):34-38.DING Fa-xing,YU Zhi-wu.Elasto-plastic Analysis ofConcrete-filled Circular Steel Tube Stub Columns Af-ter Constant High Temperature[J].Journal of Archi-tecture and Civil Engineering,2006,23(1):34-38.
[5]李小伟,赵均海,朱铁栋,等.方钢管混凝土轴压短柱的力学性能[J].中国公路学报,2006,19(4):77-81.LI Xiao-wei,ZHAO Jun-hai,ZHU Tie-dong,et al.Mechanics Behavior of Axially Loaded Short Columnswith Concrete-filled Square Steel Tube[J].ChinaJournal of Highway and Transport,2006,19(4):77-81.
[6]张阳,邵旭东,蔡松柏,等.大跨桁式钢管混凝土拱桥空间非线性有限元分析[J].中国公路学报,2006,19(4):65-70.ZHANG Yang,SHAO Xu-dong,CAI Song-bai,et al.Spatial Nonlinear Finite Element Analysis for Long-span Trussed CFST Arch Bridge[J].China Journal ofHighway and Transport,2006,19(4):65-70.
[7]裴万吉,赵均海,魏雪英.钢管混凝土的截面形式及其承载力分析[J].建筑科学与工程学报,2006,23(1):49-53.PEI Wan-ji,ZHAO Jun-hai,WEI Xue-ying.Analysisof Section Types of Concrete-filled Steel Tube and ItsLoad Capacity[J].Journal of Architecture and CivilEngineering,2006,23(1):49-53.
[8]韩冰,王元丰.圆钢管混凝土轴心受压构件徐变分析的比较[J].中国公路学报,2007,20(2):83-86.HAN Bing,WANG Yuan-feng.Creep Analysis Com-parison of Circular Axially Compressed Concrete-filled Steel Tubular Members[J].China Journal ofHighway and Transport,2007,20(2):83-86.
[9]钟善桐.钢管混凝土结构[M].北京:清华大学出版社,2003.ZHONG Shan-tong.Structures of Concrete-filledSteel Pipe[M].Beijing:Tsinghua University Press,2003.
[10]韩林海.钢管混凝土结构[M].北京:科学出版社,2004.HAN Lin-hai.Structures of Concrete-filled SteelTube[M].Beijing:Science Press,2004.
[11]蔡绍怀.现代钢管混凝土结构[M].北京:人民交通出版社,2003.CAI Shao-huai.Modern Concrete-filled Steel TubeStructures[M].Beijing:China Communications Press,2003.
[12]赵均海.强度理论及其工程应用[M].北京:科学出版社,2003.ZHAO Jun-hai.Strength Theory and Its EngineeringApplication[M].Beijing:Science Press,2003.
[13]赵均海,顾强,马淑芳.基于双剪统一强度理论的轴心受压钢管混凝土承载力研究[J].工程力学,2002,19(2):32-35.ZHAO Jun-hai,GU Qiang,MA Shu-fang.The Studyof the Axial Compressive Strength of Concrete FilledSteel Tube Based on the Twin Shear Unified StrengthTheory[J].Engineering Mechanics,2002,19(2):32-35.
[14]李继读.钢管混凝土轴压承载力的研究[J].工业建筑,1985,6(2):25-31.LI Ji-du.Research of Axial Bearing Capacity of Con-crete Filled Steel Tube[J].Industrial Construction,1985,6(2):25-31.
[15]曹平周.钢管混凝土柱侧压效应系数分析和极限强度计算[J].钢结构,1998,13(3):20-24.CAO Ping-zhou.The Concrete Lateral Pressure EffectCoefficient Analysis and Ultimate Strength Calcula-tion of Concrete-filled Steel Tube Columns[J].SteelCostruction,1998,13(3):20-24.
[16]甘丛石,支喜华,唐丛一.钢管混凝土弹塑性本构方程及极限承载力[J].长沙交通学院学报,1998,14(3):68-73.GAN Cong-shi,ZHI Xi-hua,TANG Cong-yi.The E-lastic-plastic Constitution Equation and Ultimate Ca-pacity to Steel Tube Filled in Concrete[J].Journal ofChangsha Communications University,1998,14(3):68-73.
[17]钱在兹,钱春.混凝土复杂受力状态下的统一强度准则[J].土木工程学报,1996,29(2):46-55.QIAN Zai-zi,QIAN Chun.Unified Strength Criterionof Concrete Under Multiaxial Loading Conditions[J].China Civil Engineering Journal,1996,29(2):46-55.
[18]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.JIANG Shao-fei,LIAO Yun,ZHANG Xin-yu,et al.Behavior Research on Slender CFST Columns Subjec-ted to Axial Compression[J].Journal of Shenyang Ar-chitecture and Civil Engineering University,2002,18(1):1-4.
[19]HAN L H.Test on Concrete Filled Steel Tubular Col-umns with High Slenderness Ratio[J].Advanced inStructural Engineering,2000,3(4):337-344.
[20]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,1999,14(2):21-25.HAN Lin-hai,JIANG Shao-fei,CAO Yu-qing,et al.Experimental Studies on the Behavior and Strength ofVery Slender Concrete Filled Steel Tube Columns[J].Steel Construction,1999,14(2):21-25.
[21]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,2003,23(5):130-133.LI Bin,WEN Yang.Experimental Study on BearingCapacity of Long Concrete Filled Steel Tubular Col-umns with Axial Compression[J].Earthquake Engi-neering and Engineering Vibration,2003,23(5):130-133.
[2]陈宝春,肖泽荣,韦建刚.钢管混凝土哑铃形拱肋灌注混凝土时的截面应力分析[J].中国公路学报,2005,18(1):73-76.CHEN Bao-chun,XIAO Ze-rong,WEI Jian-gang.A-nalysis on Stresses of Dumbbell-shaped Cross-sectionof CFST Arch Rib During Concrete Pouring Con-struction[J].China Journal of Highway and Trans-port,2005,18(1):73-76.
[3]黄文金,陈宝春.钢管混凝土桁梁受弯试验研究[J].建筑科学与工程学报,2006,23(1):29-33.HUANG Wen-jin,CHEN Bao-chun.ExperimentalResearch on Concrete-filled Steel Tube Truss GirderUnder Bending[J].Journal of Architecture and CivilEngineering,2006,23(1):29-33.
[4]丁发兴,余志武.恒高温后圆钢管混凝土轴压短柱弹塑性分析[J].建筑科学与工程学报,2006,23(1):34-38.DING Fa-xing,YU Zhi-wu.Elasto-plastic Analysis ofConcrete-filled Circular Steel Tube Stub Columns Af-ter Constant High Temperature[J].Journal of Archi-tecture and Civil Engineering,2006,23(1):34-38.
[5]李小伟,赵均海,朱铁栋,等.方钢管混凝土轴压短柱的力学性能[J].中国公路学报,2006,19(4):77-81.LI Xiao-wei,ZHAO Jun-hai,ZHU Tie-dong,et al.Mechanics Behavior of Axially Loaded Short Columnswith Concrete-filled Square Steel Tube[J].ChinaJournal of Highway and Transport,2006,19(4):77-81.
[6]张阳,邵旭东,蔡松柏,等.大跨桁式钢管混凝土拱桥空间非线性有限元分析[J].中国公路学报,2006,19(4):65-70.ZHANG Yang,SHAO Xu-dong,CAI Song-bai,et al.Spatial Nonlinear Finite Element Analysis for Long-span Trussed CFST Arch Bridge[J].China Journal ofHighway and Transport,2006,19(4):65-70.
[7]裴万吉,赵均海,魏雪英.钢管混凝土的截面形式及其承载力分析[J].建筑科学与工程学报,2006,23(1):49-53.PEI Wan-ji,ZHAO Jun-hai,WEI Xue-ying.Analysisof Section Types of Concrete-filled Steel Tube and ItsLoad Capacity[J].Journal of Architecture and CivilEngineering,2006,23(1):49-53.
[8]韩冰,王元丰.圆钢管混凝土轴心受压构件徐变分析的比较[J].中国公路学报,2007,20(2):83-86.HAN Bing,WANG Yuan-feng.Creep Analysis Com-parison of Circular Axially Compressed Concrete-filled Steel Tubular Members[J].China Journal ofHighway and Transport,2007,20(2):83-86.
[9]钟善桐.钢管混凝土结构[M].北京:清华大学出版社,2003.ZHONG Shan-tong.Structures of Concrete-filledSteel Pipe[M].Beijing:Tsinghua University Press,2003.
[10]韩林海.钢管混凝土结构[M].北京:科学出版社,2004.HAN Lin-hai.Structures of Concrete-filled SteelTube[M].Beijing:Science Press,2004.
[11]蔡绍怀.现代钢管混凝土结构[M].北京:人民交通出版社,2003.CAI Shao-huai.Modern Concrete-filled Steel TubeStructures[M].Beijing:China Communications Press,2003.
[12]赵均海.强度理论及其工程应用[M].北京:科学出版社,2003.ZHAO Jun-hai.Strength Theory and Its EngineeringApplication[M].Beijing:Science Press,2003.
[13]赵均海,顾强,马淑芳.基于双剪统一强度理论的轴心受压钢管混凝土承载力研究[J].工程力学,2002,19(2):32-35.ZHAO Jun-hai,GU Qiang,MA Shu-fang.The Studyof the Axial Compressive Strength of Concrete FilledSteel Tube Based on the Twin Shear Unified StrengthTheory[J].Engineering Mechanics,2002,19(2):32-35.
[14]李继读.钢管混凝土轴压承载力的研究[J].工业建筑,1985,6(2):25-31.LI Ji-du.Research of Axial Bearing Capacity of Con-crete Filled Steel Tube[J].Industrial Construction,1985,6(2):25-31.
[15]曹平周.钢管混凝土柱侧压效应系数分析和极限强度计算[J].钢结构,1998,13(3):20-24.CAO Ping-zhou.The Concrete Lateral Pressure EffectCoefficient Analysis and Ultimate Strength Calcula-tion of Concrete-filled Steel Tube Columns[J].SteelCostruction,1998,13(3):20-24.
[16]甘丛石,支喜华,唐丛一.钢管混凝土弹塑性本构方程及极限承载力[J].长沙交通学院学报,1998,14(3):68-73.GAN Cong-shi,ZHI Xi-hua,TANG Cong-yi.The E-lastic-plastic Constitution Equation and Ultimate Ca-pacity to Steel Tube Filled in Concrete[J].Journal ofChangsha Communications University,1998,14(3):68-73.
[17]钱在兹,钱春.混凝土复杂受力状态下的统一强度准则[J].土木工程学报,1996,29(2):46-55.QIAN Zai-zi,QIAN Chun.Unified Strength Criterionof Concrete Under Multiaxial Loading Conditions[J].China Civil Engineering Journal,1996,29(2):46-55.
[18]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.JIANG Shao-fei,LIAO Yun,ZHANG Xin-yu,et al.Behavior Research on Slender CFST Columns Subjec-ted to Axial Compression[J].Journal of Shenyang Ar-chitecture and Civil Engineering University,2002,18(1):1-4.
[19]HAN L H.Test on Concrete Filled Steel Tubular Col-umns with High Slenderness Ratio[J].Advanced inStructural Engineering,2000,3(4):337-344.
[20]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,1999,14(2):21-25.HAN Lin-hai,JIANG Shao-fei,CAO Yu-qing,et al.Experimental Studies on the Behavior and Strength ofVery Slender Concrete Filled Steel Tube Columns[J].Steel Construction,1999,14(2):21-25.
[21]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,2003,23(5):130-133.LI Bin,WEN Yang.Experimental Study on BearingCapacity of Long Concrete Filled Steel Tubular Col-umns with Axial Compression[J].Earthquake Engi-neering and Engineering Vibration,2003,23(5):130-133.
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