基于ABAQUS隐式分析的梁单元材料模型开发应用
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摘要
为将ABAQUS梁单元用于钢筋混凝土构件的模拟,根据已有研究,分别定义钢筋、混凝土的本构模型;按照程序提供的UMAT接口格式,采用FORTRAN语言编制纤维模型梁单元的钢筋、混凝土材料用户子程序。讨论ABAQUS中钢筋混凝土梁单元有限元模型的建模方法。通过与拟静力试验及足尺振动台试验结果比较,验证程序及建模方法的可靠性。研究结果表明:所编制的材料子程序能较好地反映任意反复荷载下钢筋混凝土柱的强度及刚度退化现象,广泛适用于复杂结构中弯曲破坏为特征的普通及高强混凝土梁、柱等构件的精细化模拟。
In order to use the beam element of ABAQUS for analyzing reinforced concrete members,a steel rebar and concrete constitutive models were presented based on the former research.According to UMAT interface provided by the software,a user subroutine of steel rebar and concrete written in FORTRAN language was developed for fiber beam element.Moreover,modeling methods of reinforced concrete beam element by ABAQUS were discussed at length.By means of comparison with low cycle and iterative static test and full scale shaking table test results,reliabilities of the user subroutine and modeling methods were validated.The results show that the subroutine provided here can well reflect strength and stiffness degradation of reinforced concrete columns produced by arbitrarily cyclic loading both in tension and compression.The subroutine is widely applicable to refined simulation of normal-and high-strength concrete beams and columns or other members characterized by flexural failure in complex large-scale structures widely.
In order to use the beam element of ABAQUS for analyzing reinforced concrete members,a steel rebar and concrete constitutive models were presented based on the former research.According to UMAT interface provided by the software,a user subroutine of steel rebar and concrete written in FORTRAN language was developed for fiber beam element.Moreover,modeling methods of reinforced concrete beam element by ABAQUS were discussed at length.By means of comparison with low cycle and iterative static test and full scale shaking table test results,reliabilities of the user subroutine and modeling methods were validated.The results show that the subroutine provided here can well reflect strength and stiffness degradation of reinforced concrete columns produced by arbitrarily cyclic loading both in tension and compression.The subroutine is widely applicable to refined simulation of normal-and high-strength concrete beams and columns or other members characterized by flexural failure in complex large-scale structures widely.
引文
[1]汪大绥,卢旦,李承铭,等.应用高性能计算平台进行结构弹塑性时程分析[C]//首届工程设计高性能计算(HPC)技术应用论坛.上海:上海现代建筑设计集团,2007:8-15.WANG Dasui,LU Dan,LI Chengming,et al.Elasto-plastic time history analysis of structures using high performance computing platform[C]//First Engineering Design Forum for High Performance Computing Technology.Shanghai,China:Shanghai Xian Dai Architectural Design Group Co.,Ltd.,2007:8-15.
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[15]Tasnimi A A,Lavasani H H.Uniaxial constitutive law for structural concrete members under monotonic and cyclic loads[J].Scientia Iranica A,2011,18(2):150-162.
[16]GB50010-2010.混凝土结构设计规范[S].GB50010-2010Code for design of concrete structures[S].
[17]Mazzoni S,Mckenna F,Scott M H,et al.OpenSees command language manual[M].California,USA:Earthquake Engineering Research Center,2007.
[18]ABAQUS Inc.ABAQUS theory manual[M].Providence,RI,USA:Dassault Systerms Simulia Corp,2010.
[19]Ge H B,Susantha K A S,Satake Y,et al.Seismic demand predictions of concrete-filled steel box columns[J].Engineering Structures,2003,25(3):337-345.
[20]Lgeron F,Paultre P,Mazars J.Damage mechanics of nonlinear seismic behavior of concrete structures[J].Journal of Structural Engineering,2005,131(6):946-955.
[21]ABAQUS Inc.ABAQUS user subroutines reference manual[M].Providence,RI,USA:Dassault Systerms Simulia Corp,2010.
[22]庄茁,由小川,廖剑辉,等.基于ABAQUS的有限元分析和应用[M].北京:清华大学出版社,2009:505-530.ZHUANG Zhuo,YOU Xiaochuan,LIAO Jianhui,et al.Analysis and application of nonlinear finite element software ABAQUS[M].Beijing:Tsinghua University Press,2009:505-530.
[23]PEER.Structural performance database[EB/OL].[2003].http://nisee.berkeley.edu/spd/
[24]PEER&NEES.Concrete column blind prediction contest2010[EB/OL].[2012-03-16]http://nisee2.berkeley.edu/peer/prediction_contest/
[2]李志山,容柏生.高层建筑结构在罕遇地震影响下的弹塑性时程分析研究[J].建筑结构,2006,36(S1):142-149.LI Zhishan,RONG Baisheng.Research on elastic-plastic time history analysis of tall building under expected rare earthquake[J].Building Structure,2006,36(S1):142-149.
[3]Menegotto M,Pinto E.Method of analysis for cyclically loaded reinforced concrete plane frames including changes in geometry and non-elastic behavior of elements under combined normal force and bending[C]//IABSE Symposium on Resistance and Ultimate Deformability of structures Acted on by Well-Defined Repeated Loads.Lisbon,Portual:IABSE,1973:15-22.
[4]Filippou,F C,Popov E G,Bertero V V.Effects of bond deterioration on hysteretic behavior of reinforced concrete joints[R].Berkeley,California:University of California,1983:1-175.
[5]Chang G A,Mander J B.Seismic energy based fatigue damage analysis of bridge columns:evaluation of seismic capacity[R].Buffalo,New York:State University of New York,1994:1-183.
[6]Hoehler M S,Stanton J F.Simple phenomenological model for reinforcing steel under arbitrary load[J].Journal of Structural Engineering,2006,132(7):1061-1069.
[7]Kunnath S K,Heo Y,Mohle J F.Nonlinear uniaxial material model for reinforcing steel bars[J].Journal of Structural Engineering,2009,134(4):333-343.
[8]Sinha B P,Gerstle K H,Tulin L G.Stress-strain relations for concrete under cyclic loading[J].J ACI,1964,61(2):195-211.
[9]Mander J B,Priestlry M J N,Park R.Theoretical stress-strain model for confined concrete[J].Journal of Structural Engineering,1988,114(8):1804-1826.
[10]Yassin M H M.Nonlinear analysis of prestressed concrete structures under monotonic and cyclic loads[D].Berkeley,California:University of California,1994:1-195.
[11]Lgeron F,Paultre P.Uniaxial confinement model for normal-and high-strength concrete columns[J].Journal of Structural Engineering,2003,129(2):241-252.
[12]Sima J F,Roca P,Molins C.Cyclic constitutive model for concrete[J].Engineering Structures,2008,30(3):695-706.
[13]Sakai J,Kawashima K.Unloading and reloading stress-strain model for confined concrete[J].Journal of Structural Engineering,2006,132(1):112-122.
[14]He W,Wu Y F,Liew K M.A fracture energy based constitutive model for the analysis of reinforced concrete structures under cyclic loading[J].Computer Methods in Applied Mechanics and Engineering,2008,197:4745-4762.
[15]Tasnimi A A,Lavasani H H.Uniaxial constitutive law for structural concrete members under monotonic and cyclic loads[J].Scientia Iranica A,2011,18(2):150-162.
[16]GB50010-2010.混凝土结构设计规范[S].GB50010-2010Code for design of concrete structures[S].
[17]Mazzoni S,Mckenna F,Scott M H,et al.OpenSees command language manual[M].California,USA:Earthquake Engineering Research Center,2007.
[18]ABAQUS Inc.ABAQUS theory manual[M].Providence,RI,USA:Dassault Systerms Simulia Corp,2010.
[19]Ge H B,Susantha K A S,Satake Y,et al.Seismic demand predictions of concrete-filled steel box columns[J].Engineering Structures,2003,25(3):337-345.
[20]Lgeron F,Paultre P,Mazars J.Damage mechanics of nonlinear seismic behavior of concrete structures[J].Journal of Structural Engineering,2005,131(6):946-955.
[21]ABAQUS Inc.ABAQUS user subroutines reference manual[M].Providence,RI,USA:Dassault Systerms Simulia Corp,2010.
[22]庄茁,由小川,廖剑辉,等.基于ABAQUS的有限元分析和应用[M].北京:清华大学出版社,2009:505-530.ZHUANG Zhuo,YOU Xiaochuan,LIAO Jianhui,et al.Analysis and application of nonlinear finite element software ABAQUS[M].Beijing:Tsinghua University Press,2009:505-530.
[23]PEER.Structural performance database[EB/OL].[2003].http://nisee.berkeley.edu/spd/
[24]PEER&NEES.Concrete column blind prediction contest2010[EB/OL].[2012-03-16]http://nisee2.berkeley.edu/peer/prediction_contest/
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