方钢管混凝土柱-钢梁竖向加劲板连接节点抗震性能分析
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摘要
在合理选择材料本构关系、破坏准则的基础上,采用通用有限元软件ANSYS对方钢管混凝土柱-钢梁竖向加劲板式节点进行了低周反复荷载试验,以及在低周反复荷载下的抗震性能分析。结果表明:有限元分析得到的滞回曲线和骨架曲线与试验结果吻合较好;试件破坏为梁端破坏,塑性铰出现在梁端,在梁变截面附近出现了局部屈曲,也与试验结果一致。
Based on the experiments of concrete-filled square tubular column connections with vertical stiffener under cyclic loading,3D nonlinear finite element models are used to analyze the mechanical properties of connections using ANSYS. Based on appropriate material stress-strain relations and failure criteria,seismic resistance of connections under cyclic loading is analyzed. It is found that the load-displacement curves and skeleton curves by finite element models analyses show good agreement with those of the experiments. The failure and plastic hinge appear on the beam end and the local buckling appears near the section of the variety beam flange. These also agree well with experimental results.
Based on the experiments of concrete-filled square tubular column connections with vertical stiffener under cyclic loading,3D nonlinear finite element models are used to analyze the mechanical properties of connections using ANSYS. Based on appropriate material stress-strain relations and failure criteria,seismic resistance of connections under cyclic loading is analyzed. It is found that the load-displacement curves and skeleton curves by finite element models analyses show good agreement with those of the experiments. The failure and plastic hinge appear on the beam end and the local buckling appears near the section of the variety beam flange. These also agree well with experimental results.
引文
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[17]Susantha K A S,Ge H B,Usami T.Uniaxial stress-strain relationship of concrete by various shaped steel tubes[J].Engineering Structures,2001,23(10):1331-1347.
[18]韩林海.钢管混凝土结构[M].北京:科学出版社,2000.Han L H.Concrete-Filled Steel Tubular Structures[M].Beijing:Science Press,2000.
[19]Hajjar J F,Schiller P H,Molodan A.A distributed plasticity model for concrete-filled steel tube beam-columns with interlayer slip[J].Engineering Stru-ctures,1998,20(8):663-676.
[20]卢方伟,李四平,孙国钧.方钢管混凝土轴压短柱的非线性有限元分析[J].工程力学,2007,24(3):110-114.Lu F W,Li S P,Sun G J.Nonlinear finite element analysis of square concrete-filled steel columns under compressive load[J].Engineering Mechanics,2007,24(3):110-114.
[21]Huang C S,Yeh Y K,Liu G Y,et al.Axial load be-havior of stiffened concrete-filled steel columns[J].Journal of Structural Engineering,2002,128(9):1222-1230.
[2]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 T H,He B K,Chen G J,et al.Experimental studies on seismic behavior of concrete-filled steelsquare tubularcolumn and steel beam joints under cyclic loading[J].Journal of Building Structures,2004,25(1):9-16.
[3]金刚,丁洁民,陈建斌.方钢管混凝土结构内隔板式节点试验研究[J].结构工程师,2005,21(4):75-80.Jin G,Ding J M,Chen J B.Experimental study on connections with steel diaphragm between CFRT col-umn and steel beam[J].Structural Engineers,2005,21(4):75-80.
[4]王来,王铁成,邓.方钢管混凝土框架内隔板节点抗震性能的试验研究[J].地震工程与工程振动,2005,25(1):76-80.Wang L,Wang T C,Deng P.Experimental research on seismic performances of joint reinforced with inner ring stiffener of concrete-filled square tubular frame[J].Earthquake Engineering and Engineering Vibra-tion,2005,25(1):76-80.
[5]陈志华,苗纪奎.方钢管混凝土柱-H型钢梁外肋环板节点研究[J].工业建筑,2005,35(10):61-78.Chen Z H,Miao J K.Study on vertical stiffener joint between concrete-filled steel square tubular column and H-steel beam[J].Industrial Construction,2005,35(10):61-78.
[6]宗周红,林于东,陈慧文,等.方钢管混凝土柱与钢梁连接节点的拟静力试验研究[J].建筑结构学报,2005,26(1):77-84.Zong Z H,Lin Y D,Chen HW,et al.Quasi-static test on concrete-filled square steel tube column to steel beam connections[J].Journal of Building Structures,2005,26(1):77-84.
[7]宗周红,葛继平,扬强跃.反复荷载作用下方钢管混凝土柱与钢梁连接节点非线性有限元分析[J].建筑结构学报,2006,27(2):75-81.Zong Z H,Ge J P,Yang Q Y.Nonlinear finite element analysis of the concrete filled square steel tubular col-umn to steel beam connections under low-cycle re-versed loading[J].Journal of Building Structures,2006,27(2):75-81.
[8]Park J W,Kang S M,Yang S C.Experimental studies of wide flange beam to square concrete-filled tube col-umn joints with stiffening plates around the column[J].Journal of Structural Engineering,2005,131(12):1866-1876.
[9]Kang C H,Shin K J,Oh Y S,et al.Hysteresis behav-ior of CFT column to H-beam connections with exter-nal T-stiffeners and penetrated elements[J].Engineer-ing Structures,2001,23(9):1194-1201.
[10]Shin K J,Kim Y J,Oh Y S,et al.Behavior of welded CFT column to H-beam connections with external stiffeners[J].Engineering Structures,2004,26(13):1877-1887.
[11]Ricles J M,Peng S W,Lu L W.Seismic behavior of composite concrete filled steel tube column-wide flange beam moment connections[J].Journal of Structural Engineering,2004,130(2):223-232.
[12]郝文化.ANSYS土木工程应用实例[M].北京:中国水利水电出版社,2005.Hao W H.Application Cases of ANSYS to Civil Engi-neering[M].Beijing:China Water Power Press,2005.
[13]杜培源.方钢管混凝土柱-工字钢梁节点性能研究[D].南京:南京工业大学,2006.Du P Y.Study on the performance of joint between concrete filled square steel tube column and H-shape steel beam[D].Nanjing:Nanjing University of Tech-nology,2006.
[14]陈骥.钢结构稳定理论与设计[M].北京:科学出版社,2006.19-21.Chen J.Stability of Steel Structures Theory and De-sign[M].Beijing:Science Press,2006.19-21.
[15]陈惠发.土木工程材料的本构方程[M].武汉:华中科技大学出版社,2001.Chen H F.Constitutive Equations of Civil Engineering Materials[M].Wuhan:Huazhong University of Sci-ence&Technology Press,2001.
[16]Hu H T,Huang C S,Wu M H.Nonlinear analysis of axially loaded concrete-filled tube columns with confi-nement effect[J].Journal of Structural Engineering,2003,129(10):1322-1329.
[17]Susantha K A S,Ge H B,Usami T.Uniaxial stress-strain relationship of concrete by various shaped steel tubes[J].Engineering Structures,2001,23(10):1331-1347.
[18]韩林海.钢管混凝土结构[M].北京:科学出版社,2000.Han L H.Concrete-Filled Steel Tubular Structures[M].Beijing:Science Press,2000.
[19]Hajjar J F,Schiller P H,Molodan A.A distributed plasticity model for concrete-filled steel tube beam-columns with interlayer slip[J].Engineering Stru-ctures,1998,20(8):663-676.
[20]卢方伟,李四平,孙国钧.方钢管混凝土轴压短柱的非线性有限元分析[J].工程力学,2007,24(3):110-114.Lu F W,Li S P,Sun G J.Nonlinear finite element analysis of square concrete-filled steel columns under compressive load[J].Engineering Mechanics,2007,24(3):110-114.
[21]Huang C S,Yeh Y K,Liu G Y,et al.Axial load be-havior of stiffened concrete-filled steel columns[J].Journal of Structural Engineering,2002,128(9):1222-1230.
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