The bundled lipped channel-concrete (BLC-C) composite wall has no edge members that the beam need to be directly connect to the narrow wall sides. Under this condition, two beam wall connection configuration types were proposed and four full-scaled quasit-static cyclic tests were performed with one vertical stiffened connection and three end-plate connections. Connection type, and end-plate thickness are selected as the primary comparing factors, and their influence on the seismic performance and failure mode of beam wall connections are carefully studied. The failure mode, hysteresis curves, stiffness degradation, ductility, and energy dissipation capacity were analyzed to evaluate the seismic behaviors. Both connections all showed good load carrying capacity and satisfied ductility with a full and stable spindle hysteretic hoop, representing a slow stiffness degradation and strong energy dissipation capacity. The experimental ductility ratios and dissipation ratios ,which satisfied the seismic design requirements of American specification AISC341-10 and Chinese code GB 50011, proving the applicability of these connections into the practical engineering of BLC-C.
[1]王静峰,胡益磊,蒋志,. 带楼板薄壁钢管混凝土组合节点低周反复荷载试验研究[J]. 建筑结构学报,2013,(S1).
(WANG Jingfeng,HU Yilei,JIANG Zhi. Experimental study on composite CFTST joints with concrete slab under low cyclic loadings [J]. Journal of Building Structures,2013,(S1). ( in Chinese))
[2]王静峰,郭水平,陈莉萍,. 带肋薄壁钢管混凝土框架梁柱端板连接节点试验研究[J]. 建筑结构学报,2011,(8).
(WANG Jingfeng,GUO Shuiping,CHEN Liping. Experimental study on behavior of beam-column endplate joints of concrete-filled thin-walled steel tube frame with ribs[J]. Journal of Building Structures,2011,(8). ( in Chinese))
[3] Park W, Yun H, Hwang S, et al. Shear strength of the connection between a steel coupling beam and a reinforced concrete shear wall in a hybrid wall system[J]. Journal of Constructional Steel Research, 2005, 61(7):912–941.
[4]Park W, Yun H. Seismic behavior of coupling beams in a hybrid coupled shear walls[J]. Journal of Constructional Steel Research, 2005, 61(11):1492–1524.
[5]Song A L, Su M Z, Li X D, et al. Study on Seismic Performance of Connection of Hybrid Coupled Wall System[J]. Applied Mechanics & Materials, 2013, 256-259.
[6]Wan-Shin P, Hyun-Do Y. Seismic performance of steel coupling beam–wall connections in panel shear failure[J]. Journal of Constructional Steel Research, 2006, 62(10):1016–1025.
[7] ANSI/AISC 341-10. Seismic provisions for structural steel buildings. Chicago (IL):American Institute of Steel Construction, Inc.; 2010.
[8] 李忠献编著.工程结构试验理论与技术[M].天津:天津大学出版社.2004.
[9] Ricles J M, Peng S W, Lu L W. Seismic Behavior of Composite Concrete Filled Steel Tube Column-Wide Flange Beam Moment Connections[J]. American Society of Civil Engineers, 2014, 130(2):223-232.
[10]Qin Y, Chen Z, Yang Q, et al. Experimental seismic behavior of through-diaphragm connections to concrete-filled rectangular steel tubular columns[J]. Journal of Constructional Steel Research, 2014, 93(1):32-43.
[11] GB50011 2010 建筑抗震设计规范[S]. 北京: 中国建筑工业出版社,2010.
(GB50011 2010 Code for seismic design of buildings[S]. Beijing: China Architecture&Building Press,2010. ( in Chinese) )
[12] 唐九如编著. 钢筋混凝土框架节点抗震 [M]. 南京:东南大学出版社,1989.
(Tang JR. Seismic resistance of joints in reinforced concrete frames. Nanjing (China):Southeast Univ. Press; 1989.)
[13]周天华,何保康,陈国津,魏潮文,单银木. 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,2004,01:9-16.
(Zhou TH, He BK, Chen GJ, Wei CW, Shan YM. Experimental studies on seismic behavior of concrete-filled steel tubular column and steel beam joints under cyclic loading. [J] Building Structures 2004;25(1):9–16)