方钢管混凝土柱隔板贯通节点静力拉伸试验
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摘要
为研究方钢管混凝土柱与钢梁受拉翼缘连接的结构性能,基于隔板贯通节点承载力理论,对11个十字形节点试件进行了静力拉伸试验.研究结果表明,圆弧倒角型隔板贯通节点具有较好的承载力和延性,影响节点承载力的主要因素是隔板的厚度与浇注孔直径,其次是钢管的宽厚比和隔板外伸长度;在钢管中填充混凝土有利于提高节点的屈服承载力和刚度,但混凝土的强度对节点承载力影响不大.试验值与理论计算值比较分析表明,隔板贯通节点局部抗拉承载力理论计算公式对于填充混凝土的试件偏于保守,但过高估计了空钢管试件的承载力.
In order to investigate the structural behavior of the connection between concrete-filled square steel tubular col-umn and steel beam flange,eleven cruciform specimens of diaphragm-through joint model were studied by static tensile test on the basis of load-bearing capability theory of joints.Experimental results indicate that diaphragm-through joints with cir-cular fillet at the connecting zone of diaphragm and beam flange have high load-bearing capacity and good ductility.The main factors that influence the load-bearing capability of joint are diameter of concrete cast hole and diaphragm thickness,and the second factors are width-to-thickness ratio of the tube and extended length of the diaphragm.The yield load-bearing capacity and stiffness can be increased by the concrete filled in the tube,but the concrete strength has no obvious effects on joint strength.Compared with experimental results,the load-bearing capability calculated from theoretical formula is conser-vative for the joint models with the tube filled in concrete,but the strength of the specimens without concrete in the tube is overestimated.
In order to investigate the structural behavior of the connection between concrete-filled square steel tubular col-umn and steel beam flange,eleven cruciform specimens of diaphragm-through joint model were studied by static tensile test on the basis of load-bearing capability theory of joints.Experimental results indicate that diaphragm-through joints with cir-cular fillet at the connecting zone of diaphragm and beam flange have high load-bearing capacity and good ductility.The main factors that influence the load-bearing capability of joint are diameter of concrete cast hole and diaphragm thickness,and the second factors are width-to-thickness ratio of the tube and extended length of the diaphragm.The yield load-bearing capacity and stiffness can be increased by the concrete filled in the tube,but the concrete strength has no obvious effects on joint strength.Compared with experimental results,the load-bearing capability calculated from theoretical formula is conser-vative for the joint models with the tube filled in concrete,but the strength of the specimens without concrete in the tube is overestimated.
引文
[1]Ricles J M,Peng S W,Lu L W.Seismic behavior of com-posite concrete filled steel tube column-wide flange beam moment connections[J].Journal of Structural Engineer-ing,2004,130(2):223-232.
[2]Fukumoto T,Morita K.Elasto-plastic behavior of panel zone in steel beam-to-concrete filled steel tube column moment connections[J].Journal of Structural Engineer-ing,2005,131(7):1841-1853.
[3]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 Tianhua,He Baokang,Chen Guojin,et al.Experi-mental studies on seismic behavior of concrete-filled steel square tubular column and steel beam joints under cyclic loading[J].Journal of Building Structures,2004,25(1):9-16(in Chinese).
[4]王文达,韩林海,游经团.方钢管混凝土柱-钢梁外加强环节点滞回性能的实验研究[J].土木工程学报,2006,39(9):17-25.Wang Wenda,Han Linhai,You Jingtuan.Experimental studies on hysteretic behaviors of steel beam to concrete-filled SHS column connections with stiffening ring[J].China Civil Engineering Journal,2006,39(9):17-25(in Chinese).
[5]Matsui C.Strength and behavior of frames with concrete filled square steel tubular columns under earthquake load-ing[C]//The International Specialty Conference on Con-crete Filled Steel Tubular Structure.Harbin,China,1985:143-146.
[6]Morino S,Kawaguchi J,Yasuzaki C,et al.Behavior of concrete filled steel tubular three-dimensional subassem-blies[C]//Proceedings of Composite Construction in Steel and Concrete.Potosi,Mo,1993:726-741.
[7]Nakashima M,Suita K,Morisako K.Test of welded beam-column subassemblies[J].Journal of Structural Engineering,1998,124(11):1236-1252.
[8]Nishiyama I,Fujimoto T,Fukumoto T,et al.Inelastic force-deformation response of joint shear panels in beam-column moment connections to concrete-filled tubes[J].Journal of Structural Engineering,2004,130(2):244-252.
[9]中国工程建设标准化协会.CECS159—2004矩形钢管混凝土结构技术规程[S].北京:中国计划出版社,2004.China Engineering Construction Standardization Associa-tion.CECS159—2004 Technical Specification for Struc-tures with Concrete-Filled Rectangular Steel Tubular Members[S].Beijing:China Planning Press,2004(in Chinese).
[10]李黎明,陈志华,李宁.隔板贯通式梁柱节点抗震性能试验研究[J].地震工程与工程振动,2007,27(1):46-53.Li Liming,Chen Zhihua,Li Ning.Experimental study on seismic capability of diaphragm-through style beam-column joint[J].Journal of Earthquake Engineering and Engineering Vibration,2007,27(1):46-53(in Chi-nese).
[11]苗纪奎,陈志华,姜忻良,等.方钢管混凝土柱-钢梁节点静力受拉性能研究[J].山东建筑大学学报,2008,23(4):287-292.Miao Jikui,Chen Zhihua,Jiang Xinliang,et al.Tensile behavior of connection between concrete-filled square steel tubular column and steel beam[J].Journal of Shandong Jianzhu University,2008,23(4):287-292(in Chinese).
[2]Fukumoto T,Morita K.Elasto-plastic behavior of panel zone in steel beam-to-concrete filled steel tube column moment connections[J].Journal of Structural Engineer-ing,2005,131(7):1841-1853.
[3]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 Tianhua,He Baokang,Chen Guojin,et al.Experi-mental studies on seismic behavior of concrete-filled steel square tubular column and steel beam joints under cyclic loading[J].Journal of Building Structures,2004,25(1):9-16(in Chinese).
[4]王文达,韩林海,游经团.方钢管混凝土柱-钢梁外加强环节点滞回性能的实验研究[J].土木工程学报,2006,39(9):17-25.Wang Wenda,Han Linhai,You Jingtuan.Experimental studies on hysteretic behaviors of steel beam to concrete-filled SHS column connections with stiffening ring[J].China Civil Engineering Journal,2006,39(9):17-25(in Chinese).
[5]Matsui C.Strength and behavior of frames with concrete filled square steel tubular columns under earthquake load-ing[C]//The International Specialty Conference on Con-crete Filled Steel Tubular Structure.Harbin,China,1985:143-146.
[6]Morino S,Kawaguchi J,Yasuzaki C,et al.Behavior of concrete filled steel tubular three-dimensional subassem-blies[C]//Proceedings of Composite Construction in Steel and Concrete.Potosi,Mo,1993:726-741.
[7]Nakashima M,Suita K,Morisako K.Test of welded beam-column subassemblies[J].Journal of Structural Engineering,1998,124(11):1236-1252.
[8]Nishiyama I,Fujimoto T,Fukumoto T,et al.Inelastic force-deformation response of joint shear panels in beam-column moment connections to concrete-filled tubes[J].Journal of Structural Engineering,2004,130(2):244-252.
[9]中国工程建设标准化协会.CECS159—2004矩形钢管混凝土结构技术规程[S].北京:中国计划出版社,2004.China Engineering Construction Standardization Associa-tion.CECS159—2004 Technical Specification for Struc-tures with Concrete-Filled Rectangular Steel Tubular Members[S].Beijing:China Planning Press,2004(in Chinese).
[10]李黎明,陈志华,李宁.隔板贯通式梁柱节点抗震性能试验研究[J].地震工程与工程振动,2007,27(1):46-53.Li Liming,Chen Zhihua,Li Ning.Experimental study on seismic capability of diaphragm-through style beam-column joint[J].Journal of Earthquake Engineering and Engineering Vibration,2007,27(1):46-53(in Chi-nese).
[11]苗纪奎,陈志华,姜忻良,等.方钢管混凝土柱-钢梁节点静力受拉性能研究[J].山东建筑大学学报,2008,23(4):287-292.Miao Jikui,Chen Zhihua,Jiang Xinliang,et al.Tensile behavior of connection between concrete-filled square steel tubular column and steel beam[J].Journal of Shandong Jianzhu University,2008,23(4):287-292(in Chinese).
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