循环荷载下钢材本构模型的应用研究
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摘要
为进一步验证循环荷载下钢材本构模型的适用性及广泛性,分别从材料及构件层次选取了国内外典型的循环试验结果对模型进行充分验证,包括钢材循环低周疲劳试验、钢构件循环加载试验、钢节点以及组合节点循环加载试验。并通过对比分析循环荷载下钢材本构模型与常用的两折线模型在构件及体系层次应用效果,充分说明了循环特性显著影响抗震性能,在今后的设计计算中需要引起重视。在此基础上,将钢材循环本构模型应用于一个十层钢框架结构抗震性能分析之中,验证了其用于钢结构体系在地震作用下弹塑性时程分析时的可行性,为钢结构的抗震分析提供了有力的工具。
In order to verify the applicability and universality of a steel cyclic constitutive model,the domestic and abroad typical tests of both material and members were adopted,including low cycle fatigue tests of material,steel member test,steel and composite connection tests under cyclic loading pattern.Hysteretic characters significantly affect the aseismic behaviours by comparing the results of the proposed model and a bilinear model,which should be paid more attention on structure design.Base on the verified model,a ten floor frame was established,which proved the applicability of the proposed model for time history analysis under real earthquake waves.The proposed model provided a powerful tool for the aseismic analysis of a steel structure.
In order to verify the applicability and universality of a steel cyclic constitutive model,the domestic and abroad typical tests of both material and members were adopted,including low cycle fatigue tests of material,steel member test,steel and composite connection tests under cyclic loading pattern.Hysteretic characters significantly affect the aseismic behaviours by comparing the results of the proposed model and a bilinear model,which should be paid more attention on structure design.Base on the verified model,a ten floor frame was established,which proved the applicability of the proposed model for time history analysis under real earthquake waves.The proposed model provided a powerful tool for the aseismic analysis of a steel structure.
引文
[1]国家自然科学基金委员会.学科发展战略研究报告-建筑、环境与土木工程Ⅱ[R].北京:科学出版社,2006.National Natural Science Foundation Committee.SubjectDevelopment Strategy Research Report-Construction,Environment and Civil EngineeringⅡ[R].Beijing:Science Press,2006.(in Chinese)
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[5]Nathaniel G C,Krawinkler H.Uniaxial cyclicstress-strain behavior of structural steel[J].Journal ofEngineering Mechanics,1985,111(9):1105―1120.
[6]Chaboche J L.Time independent constitutive theories forcyclic plasticity[J].International Journal of Plasticity,1986,2(2):149―188.
[7]Chaboche J L.Constitutive equations for cyclic plasticityand cyclic viscoplasticity[J].International Journal ofPlasticity,1989,5:247―302.
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[12]Dafalias Y F,Popov E P.A model of nonlinear hardeningmaterials for complex loading[J].Acta Mechanica,1975,21:173―192.
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[16]Légeron F,Paultre P,Mazars J.Damage mechanicsmodeling of nonlinear seismic behavior of concretestructures[J].Journal of Structural Engineering,ASCE,2005,131(6):946―955.
[17]石永久,王萌,王元清.结构钢材循环荷载下本构模型研究[J].工程力学,2012,29(9):92―98.Shi Yongju,Wang Meng,Wang Yuanqing.Study onconstitutive model of structural steel under cyclic loading[J].Engineering Mechanics,2012,29(9):92―98.(inChinese)
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[23]郝际平.钢结构在循环荷载作用下的局部屈曲、低周疲劳的试验与理论研究[D].西安:西安建筑科技大学,1995.Hao Jiping.Experimental and theoretical study of localbuckling and low cyclic fatigue of steel structure undercyclic load[D].Xi’an:Xi’an University of Architectureand Technology,1995.(in Chinese)
[24]Carlo A,Raffaele P.Failure criteria and cumulativedamage models for steel components under cyclic loading[J].Journal of Constructional Steel Research,2009,65(4):751―765.
[25]陈宏.高层钢结构节点地震脆断机理及抗震性能研究[D].北京:中国矿业大学,2001.Chen Hong.Seismic brittle fracture mechanism andSeismic behavior of steel beam-column connections intall buildings[D].Beijing:China University of Miningand Technology,2001.(in Chinese)
[26]石永久,苏迪,王元清.混凝土楼板对钢框架梁柱节点抗震性能影响的试验研究[J].土木工程学报,2006,39(9):26―31.Shi Yongjiu,Su Di,Wang Yuanqing.An experimentalstudy on the seismic performance of beam-column jointsin steel frames with the effect of concrete slabsconsidered[J].China Civil Engineering Journal,2006,39(9):26―31.(in Chinese)
[27]GB50011-2001,建筑抗震设计规范[S].北京:中国建筑工业出版社,2001.GB50011-2001,Code for Seismic Design of Buildings[S].Beijing:China Architecture&Building Press,2001.(in Chinese)
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[2]Fernandez-Davila V I,Cruz E F.Parametric study of thenon-linear seismic response of three-dimensional buildingmodels[J].Engineering Structures,2006,28(5):756―770.
[3]Ramberg W,Osgood W R.Description of stress-straincurves by three parameters[R].National AdvisoryCommittee for Aeronautics,Technical Note 902,1943.
[4]Krawinkler H,Zohrei M,Bahman L I,et al.Recommendations for experimental studies on theseismic behavior of steel components and materials[R].Earthquake Engineering Center,Department of Civil andEnvironmental Engineering,Stanford University,Stanford,CA,1983:61.
[5]Nathaniel G C,Krawinkler H.Uniaxial cyclicstress-strain behavior of structural steel[J].Journal ofEngineering Mechanics,1985,111(9):1105―1120.
[6]Chaboche J L.Time independent constitutive theories forcyclic plasticity[J].International Journal of Plasticity,1986,2(2):149―188.
[7]Chaboche J L.Constitutive equations for cyclic plasticityand cyclic viscoplasticity[J].International Journal ofPlasticity,1989,5:247―302.
[8]Atkan A E,Karlson B I,Sozen M A.Stress-strainrelationships of reinforcing bars subjected to large strainreversals[R].Civil Engineering Studies,SRS No.397University of Illinois,Urbana-Champaign,Ill,1973.
[9]王娴明,徐波,沈聚敏.反复荷载作用下钢筋的本构关系[J].建筑结构学报,1992,13(6):41―47.Wang Xianming,Xu Bo,Shen Jumin.A constitutivemodel of reinforcing steel under reversed loading[J].Journal of Building Structures,1992,13(6):41―47.(inChinese)
[10]Shen C,Tanaka Y,Mizuno E,Usami T.A two-surfacemodel for steels with yield plateau[J].Journal ofStructure Mechanics and Earthquake Engineering,JSCE1992,8(4):179―188.
[11]Usami T,Gao S,Ge H.Elastoplastic analysis of steelmembers and frames subjected to cyclic loading[J].Engineering Structures,2000,22(2):135―145.
[12]Dafalias Y F,Popov E P.A model of nonlinear hardeningmaterials for complex loading[J].Acta Mechanica,1975,21:173―192.
[13]Dafalias Y F,Popov E P.Plastic interval variablesformalism of cyclic plasticity[J].Journal of AppliedMechanics,Transactions ASME,1976,43:645―651.
[14]Part R,Kent D C,Sampson R A.Reinforced concretemembers with cyclic Loading[J].Journal of theStructural Division,ASCE,1972,98(ST7):1341―1360.
[15]Esmaeily A,Xiao Y.Behavior of reinforced concretecolumns under variable axial loads:Analysis[J].ACIStructural Journal,2005,102(5):736―744.
[16]Légeron F,Paultre P,Mazars J.Damage mechanicsmodeling of nonlinear seismic behavior of concretestructures[J].Journal of Structural Engineering,ASCE,2005,131(6):946―955.
[17]石永久,王萌,王元清.结构钢材循环荷载下本构模型研究[J].工程力学,2012,29(9):92―98.Shi Yongju,Wang Meng,Wang Yuanqing.Study onconstitutive model of structural steel under cyclic loading[J].Engineering Mechanics,2012,29(9):92―98.(inChinese)
[18]ABAQUS.Analysis user's manual I_V.Version 6.9[M].USA:ABAQUS,Inc.,Dassault Systèmes,2009.
[19]聂建国,王宇航.基于ABAQUS的钢-混凝土组合结构纤维梁模型的开发及应用[J].工程力学,2012,29(1):70―80.Nie Jianguo,Wang Yuhang.Development and applicationof steel-concrete composite fiber beam model inABAQUS platform[J].Engineering Mechanics,2012,29(1):70―80.(in Chinese)
[20]Peter D,Ahmad M I,Ian G B.Cyclic response of platesteels under large inelastic strains[J].Journal ofConstructional Steel Research,2007,63(2):156―164.
[21]Krawinkler H,Zohrei M.Cumulative damage in steelstructures subjected to earthquake ground motion[J].Computers&Structures,1983,16(1/2/3/4):531―541.
[22]Lee P S,Noh H C.Inelastic buckling behavior of steelmembers under reversed cyclic loading[J].EngineeringStructures,2010,32(9):2579―2595.
[23]郝际平.钢结构在循环荷载作用下的局部屈曲、低周疲劳的试验与理论研究[D].西安:西安建筑科技大学,1995.Hao Jiping.Experimental and theoretical study of localbuckling and low cyclic fatigue of steel structure undercyclic load[D].Xi’an:Xi’an University of Architectureand Technology,1995.(in Chinese)
[24]Carlo A,Raffaele P.Failure criteria and cumulativedamage models for steel components under cyclic loading[J].Journal of Constructional Steel Research,2009,65(4):751―765.
[25]陈宏.高层钢结构节点地震脆断机理及抗震性能研究[D].北京:中国矿业大学,2001.Chen Hong.Seismic brittle fracture mechanism andSeismic behavior of steel beam-column connections intall buildings[D].Beijing:China University of Miningand Technology,2001.(in Chinese)
[26]石永久,苏迪,王元清.混凝土楼板对钢框架梁柱节点抗震性能影响的试验研究[J].土木工程学报,2006,39(9):26―31.Shi Yongjiu,Su Di,Wang Yuanqing.An experimentalstudy on the seismic performance of beam-column jointsin steel frames with the effect of concrete slabsconsidered[J].China Civil Engineering Journal,2006,39(9):26―31.(in Chinese)
[27]GB50011-2001,建筑抗震设计规范[S].北京:中国建筑工业出版社,2001.GB50011-2001,Code for Seismic Design of Buildings[S].Beijing:China Architecture&Building Press,2001.(in Chinese)
[28]GB50009-2001,建筑结构荷载规范[S].北京:中国建筑工业出版社,2001.GB50009-2001,Load code for design of buildingstructures[S].Beijing:China Architecture&BuildingPress,2001.(in Chinese)
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