矩形钢管混凝土柱力学性能非线性有限元分析
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摘要
为了更好地研究矩形钢管混凝土柱的力学性能,在以往试验和理论研究的基础上,提出一种适用于任意截面形状的三节点八自由度单元模型.结合混凝土和钢材的本构关系建立了非线性有限元模型,用于对单调和反复加载受力方案进行计算分析.对包括纯弯、轴压、偏压和低周反复荷载等多种受力模式下的矩形钢管混凝土试件进行计算,并与试验结果进行比较,两者较为吻合,证明所提出的非线性有限元分析方法可以较好地模拟矩形钢管混凝土的受力和变形性能.
In order to study the mechanical behavior of concrete-filled rectangular steel tubular columns,an unit mode with eight degrees of freedom(DOF) and three nodes,applicable to any kind of sectional shape,was proposed based on the past experimental and theoritical researches.In combination with the constitutive relation between concrete and steel,a nonlinear finite element model was established,and was used for the calculation analysis on force schemes with monotonic and repeated loading.The concrete-filled rectangular steel tubular specimens under various force modes such as pure bending,concentric compression,eccentric compression and low-cycle repeated loads were calculated.It is found through comparison that the calculated results are consistent with the experimental ones.It proves that the proposed nonlinear finite analysis method can better simulate the force and deformation behaviors of concrete-filled rectangular steel tubular.
In order to study the mechanical behavior of concrete-filled rectangular steel tubular columns,an unit mode with eight degrees of freedom(DOF) and three nodes,applicable to any kind of sectional shape,was proposed based on the past experimental and theoritical researches.In combination with the constitutive relation between concrete and steel,a nonlinear finite element model was established,and was used for the calculation analysis on force schemes with monotonic and repeated loading.The concrete-filled rectangular steel tubular specimens under various force modes such as pure bending,concentric compression,eccentric compression and low-cycle repeated loads were calculated.It is found through comparison that the calculated results are consistent with the experimental ones.It proves that the proposed nonlinear finite analysis method can better simulate the force and deformation behaviors of concrete-filled rectangular steel tubular.
引文
[1]钟善桐.钢管混凝土结构在我国的应用与发展[J].建筑技术,2001,32(2):80-82.(ZHONG Shan-tong.Application and development inChina of concrete filled steel tubular structure[J].Architecture Technology,2001,32(2):80-82.)
[2]韩林海,杨有福.矩形钢管混凝土轴心受压构件强度承载力的试验研究[J].土木工程学报,2001,34(4):22-31.(HAN Lin-hai,YANG You-fu.Study on axial bearingcapacity of concrete filled steel tube columns w ith rec-tangular section[J].China Civil Engineering Journal,2001,34(4):22-31.)
[3]钟善桐.钢管混凝土统一理论[J].哈尔滨建筑工程学院学报,1994,27(6):21-27.(ZHONG Shan-tong.The unified theory of CFST[J].Journal of Harbin Architecture and Civil Engi-neering Institute,1994,27(6):21-27.)
[4]韩林海,钟善桐.钢管混凝土压弯扭(剪)承载力相关关系及钢管混凝土统一设计理论构想[J].工业建筑,1995,25(1):14-21.(HAN Lin-hai,ZHONG Shan-tong.Bearing capacityinteractive relations for concrete filled steel tubular(CFST)subjected to compression-bending-torsion(shearing)and assumption of CFST united designtheory[J].Industrial Construction,1995,25(1):14-21.)
[5]潘友光,钟善桐.钢管混凝土轴心受压构件稳定承载力的理论分析[J].建筑结构学报,1992,13(1):43-52.(PAN You-guang,ZHONG Shan-tong.Stability ana-lysis of concrete filled steel tubular members under ax-ial compression[J].Journal of Building Structures,1992,13(1):43-52.)
[6]蔡绍怀,邸小坛.钢管混凝土偏压柱的性能和强度计算[J].建筑结构学报,1985,6(4):32-41.(CAI Shao-huai,DI Xiao-tan.Behaviour and ultimatestrength of concrete-filled steel tubular columns undereccentric loading[J].Journal of Building Structures,1985,6(4):32-41.)
[7]吕西林,陆伟东.反复荷载作用下方钢管混凝土柱的抗震性能的试验研究[J].建筑结构学报,2000,21(2):2-11.(LV Xi-lin,LU Wei-dong.Seismic behavior of con-crete-filled rectangular steel tubular columns under cy-clic loading[J].Journal of Building Structures,2000,21(2):2-11.)
[8]陶忠,韩林海.方钢管混凝土压弯构件滞回性能的试验研究[J].地震工程与工程振动,2001,21(1):74-78.(TAO Zhong,HAN Lin-hai.Tests of hysteresis be-haviors of concrete filled steel tubular beam-columnsw ith square sections[J].Earthquake Engineering andEngineering Vibration,2001,21(1):74-78.)
[9]薛立红,蔡绍怀.钢管混凝土界面附近的局部承压实验研究[J].建筑科学,1998,14(4):9-18.(XUE Li-hong,CAI Shao-huai.Experimental studyon bearing strength of concrete near the interface ofsteel tube and concrete core[J].Building Science,1998,14(4):9-18.)
[10]吕西林,李学平.方钢管混凝土柱与钢梁连接的设计方法[J].同济大学学报,2002,30(1):1-5.(LV Xi-lin,LI Xue-ping.Design method for connec-tions betw een concrete-filled square tubular columnsand steel beams[J].Journal of Tongji University,2002,30(1):1-5.)
[11]樊海涛,周绪红.x型方钢管混凝土受压节点试验研究[J].建筑技术开发,2002,29(6):5-7.(FAN Hai-tao,ZHOU Xu-hong.The experimentationof concrete-filled square steel tubular(CSST)com-pression-loaded x-connections[J].Building Tech-nique Development,2002,29(6):5-7.)
[12]周天华,何保康,陈国津,等.方钢管混凝土柱与钢梁框架节点的抗震性能试验研究[J].建筑结构学报,2004,25(1):9-16.(ZHOU Tian-hua,HE Bao-kang,CHEN Guo-jin,et al.Experimental studies on seismic behavior of con-crete-filled steel square tubular column and steel beamjoints under cyclic loading[J].Journal of BuildingStructures,2004,25(1):9-16.)
[13]Han L H.Flexural behavior of concrete-filled steeltubes[J].Journal of Constructional Steel Research,2004,60(2):313-337.
[14]Han L H,Yao G H.Influence of concrete compactionon the strength of concrete-filled steel RHS columns[J].Journal of Constructional Steel Research,2003,59(6):751-767.
[15]郭兰慧,张素梅,田华.矩形钢管高强混凝土压弯构件的实验研究[J].哈尔滨工业大学学报,2004,36(3):297-301.(GUO Lan-hui,ZHANG Su-mei,TIAN-hua.Highstrength concrete-filled RHS steel tubes subjected toeccentric loading[J].Journal of Harbin Institute ofTechnology,2004,36(3):297-301.)
[16]韩林海.钢管混凝土结构:理论与实践[M].北京:科学出版社,2004.(HAN Lin-hai.Concrete-filled steel tubular struc-tures:theory and practice[M].Beijing:SciencePress,2004.)
[17]陆新征,叶列平,缪志伟.建筑抗震弹塑性分析:原理、模型与在ABAQUS,MSC.MARC和SAP2000上的实践[M].北京:中国建筑工业出版社,2009.(LU Xin-zheng,YE Lie-ping,MIAO Zhi-wei.Elasto-plastic analysis of building against earthquake:theory,model and implementation on ABAQUS,MSC.MARC and SAP2000[M].Beijing:China Architec-ture&Building Press,2009.)
[18]宋天霞,邹时智,杨文兵.非线性结构有限元计算[M].武汉:华中理工大学出版社,1996.(SONG Tian-xia,ZOU Shi-zhi,YANG Wen-bing.Nonlinear finite element calculation of structures[M].Wuhan:Huazhong University of TechnologyPress,1996.)
[2]韩林海,杨有福.矩形钢管混凝土轴心受压构件强度承载力的试验研究[J].土木工程学报,2001,34(4):22-31.(HAN Lin-hai,YANG You-fu.Study on axial bearingcapacity of concrete filled steel tube columns w ith rec-tangular section[J].China Civil Engineering Journal,2001,34(4):22-31.)
[3]钟善桐.钢管混凝土统一理论[J].哈尔滨建筑工程学院学报,1994,27(6):21-27.(ZHONG Shan-tong.The unified theory of CFST[J].Journal of Harbin Architecture and Civil Engi-neering Institute,1994,27(6):21-27.)
[4]韩林海,钟善桐.钢管混凝土压弯扭(剪)承载力相关关系及钢管混凝土统一设计理论构想[J].工业建筑,1995,25(1):14-21.(HAN Lin-hai,ZHONG Shan-tong.Bearing capacityinteractive relations for concrete filled steel tubular(CFST)subjected to compression-bending-torsion(shearing)and assumption of CFST united designtheory[J].Industrial Construction,1995,25(1):14-21.)
[5]潘友光,钟善桐.钢管混凝土轴心受压构件稳定承载力的理论分析[J].建筑结构学报,1992,13(1):43-52.(PAN You-guang,ZHONG Shan-tong.Stability ana-lysis of concrete filled steel tubular members under ax-ial compression[J].Journal of Building Structures,1992,13(1):43-52.)
[6]蔡绍怀,邸小坛.钢管混凝土偏压柱的性能和强度计算[J].建筑结构学报,1985,6(4):32-41.(CAI Shao-huai,DI Xiao-tan.Behaviour and ultimatestrength of concrete-filled steel tubular columns undereccentric loading[J].Journal of Building Structures,1985,6(4):32-41.)
[7]吕西林,陆伟东.反复荷载作用下方钢管混凝土柱的抗震性能的试验研究[J].建筑结构学报,2000,21(2):2-11.(LV Xi-lin,LU Wei-dong.Seismic behavior of con-crete-filled rectangular steel tubular columns under cy-clic loading[J].Journal of Building Structures,2000,21(2):2-11.)
[8]陶忠,韩林海.方钢管混凝土压弯构件滞回性能的试验研究[J].地震工程与工程振动,2001,21(1):74-78.(TAO Zhong,HAN Lin-hai.Tests of hysteresis be-haviors of concrete filled steel tubular beam-columnsw ith square sections[J].Earthquake Engineering andEngineering Vibration,2001,21(1):74-78.)
[9]薛立红,蔡绍怀.钢管混凝土界面附近的局部承压实验研究[J].建筑科学,1998,14(4):9-18.(XUE Li-hong,CAI Shao-huai.Experimental studyon bearing strength of concrete near the interface ofsteel tube and concrete core[J].Building Science,1998,14(4):9-18.)
[10]吕西林,李学平.方钢管混凝土柱与钢梁连接的设计方法[J].同济大学学报,2002,30(1):1-5.(LV Xi-lin,LI Xue-ping.Design method for connec-tions betw een concrete-filled square tubular columnsand steel beams[J].Journal of Tongji University,2002,30(1):1-5.)
[11]樊海涛,周绪红.x型方钢管混凝土受压节点试验研究[J].建筑技术开发,2002,29(6):5-7.(FAN Hai-tao,ZHOU Xu-hong.The experimentationof concrete-filled square steel tubular(CSST)com-pression-loaded x-connections[J].Building Tech-nique Development,2002,29(6):5-7.)
[12]周天华,何保康,陈国津,等.方钢管混凝土柱与钢梁框架节点的抗震性能试验研究[J].建筑结构学报,2004,25(1):9-16.(ZHOU Tian-hua,HE Bao-kang,CHEN Guo-jin,et al.Experimental studies on seismic behavior of con-crete-filled steel square tubular column and steel beamjoints under cyclic loading[J].Journal of BuildingStructures,2004,25(1):9-16.)
[13]Han L H.Flexural behavior of concrete-filled steeltubes[J].Journal of Constructional Steel Research,2004,60(2):313-337.
[14]Han L H,Yao G H.Influence of concrete compactionon the strength of concrete-filled steel RHS columns[J].Journal of Constructional Steel Research,2003,59(6):751-767.
[15]郭兰慧,张素梅,田华.矩形钢管高强混凝土压弯构件的实验研究[J].哈尔滨工业大学学报,2004,36(3):297-301.(GUO Lan-hui,ZHANG Su-mei,TIAN-hua.Highstrength concrete-filled RHS steel tubes subjected toeccentric loading[J].Journal of Harbin Institute ofTechnology,2004,36(3):297-301.)
[16]韩林海.钢管混凝土结构:理论与实践[M].北京:科学出版社,2004.(HAN Lin-hai.Concrete-filled steel tubular struc-tures:theory and practice[M].Beijing:SciencePress,2004.)
[17]陆新征,叶列平,缪志伟.建筑抗震弹塑性分析:原理、模型与在ABAQUS,MSC.MARC和SAP2000上的实践[M].北京:中国建筑工业出版社,2009.(LU Xin-zheng,YE Lie-ping,MIAO Zhi-wei.Elasto-plastic analysis of building against earthquake:theory,model and implementation on ABAQUS,MSC.MARC and SAP2000[M].Beijing:China Architec-ture&Building Press,2009.)
[18]宋天霞,邹时智,杨文兵.非线性结构有限元计算[M].武汉:华中理工大学出版社,1996.(SONG Tian-xia,ZOU Shi-zhi,YANG Wen-bing.Nonlinear finite element calculation of structures[M].Wuhan:Huazhong University of TechnologyPress,1996.)
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