设置加劲肋的双层钢板-混凝土组合剪力墙抗震性能试验研究
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摘要
为研究设置加劲肋的双层钢板-混凝土组合剪力墙的抗震性能,对5个试验轴压比为0.4的模型试件进行了恒轴力下的拟静力试验。通过改变加劲肋、中部钢管混凝土暗柱的布置形式,研究该组合剪力墙在水平反复荷载作用下的破坏机理、滞回性能、变形能力以及耗能能力。试验结果表明:试件破坏时底部墙体钢板均发生了屈曲,呈现典型的压弯破坏特征;试件具有良好的延性和耗能能力;在双层钢板-混凝土组合剪力墙中仅设置纵向加劲肋对承载力提高不明显,仅设置横向加劲肋可以略提高试件的承载力,而双向加劲肋的设置将较明显提高试件的承载力;在双层钢板-混凝土组合剪力墙中部增设钢管混凝土暗柱可以较为明显地改善试件的承载力与延性。
In order to study the seismic behavior of composite shear wall with double steel plates and infill concrete with stiffeners,the quasi-static experiment under constant axial load on five specimens was carried out. The testing axial compression ratio was 0. 4. The parameters in the experiment included the forms of stiffening rib and setting the concrete filled steel tubular column in central of the specimens. The failure mechanism, hysteretic behavior,deformability and energy dissipation capacity of the specimens under a cyclic lateral load were analyzed. The experiment results show that local buckling occurs at the lower part of the specimens before failure,and the failure mode of specimens is a typical compression-bending failure. The specimens have good bearing capacity,deformability and energy dissipation. There is no increase of bearing capacity for composite shear wall with transverse stiffener,but a little increase for that with longitudinal stiffener,and significantly increase for that with both longitudinal and transverse stiffeners. The deformability and bearing capacity of the composite shear wall can be significantly improved by setting the concrete filled steel tubular columns in center of the specimens.
In order to study the seismic behavior of composite shear wall with double steel plates and infill concrete with stiffeners,the quasi-static experiment under constant axial load on five specimens was carried out. The testing axial compression ratio was 0. 4. The parameters in the experiment included the forms of stiffening rib and setting the concrete filled steel tubular column in central of the specimens. The failure mechanism, hysteretic behavior,deformability and energy dissipation capacity of the specimens under a cyclic lateral load were analyzed. The experiment results show that local buckling occurs at the lower part of the specimens before failure,and the failure mode of specimens is a typical compression-bending failure. The specimens have good bearing capacity,deformability and energy dissipation. There is no increase of bearing capacity for composite shear wall with transverse stiffener,but a little increase for that with longitudinal stiffener,and significantly increase for that with both longitudinal and transverse stiffeners. The deformability and bearing capacity of the composite shear wall can be significantly improved by setting the concrete filled steel tubular columns in center of the specimens.
引文
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[2]陈锦石,张军.盐城广播电视塔双钢板组合剪力墙结构施工技术[J].施工技术,2011,40(15):17-20.(CHEN Jinshi,ZHANG Jun.Construction technology of composite structure of double steel plate and shear wall in Yancheng Broadcast Television Tower[J].Construction Technology,2011,40(15):17-20.(in Chinese))
[3]CLUBLEY S K,MOY S S J,XIAO R Y.Shear strength of steel-concrete-steel composite panels:partⅠ:testing and numerical modelling[J].Journal of Constructional Steel Research,2003,59(6):781-794.
[4]CLUBLEY S K,MOY S S J,XIAO R Y.Shear strength of steel-concrete-steel composite panels:partⅡ:detailed numerical modelling of performance[J].Journal of Constructional Steel Research,2003,59(6):795-808.
[5]HOSSAIN K M A,WRIGHT H D.Experimental and theoretical behaviour of composite walling under inplane shear[J].Journal of Constructional Steel Research,2004,60(1):59-83.
[6]聂建国,卜凡民,樊健生.低剪跨比双钢板-混凝土组合剪力墙抗震性能试验研究[J].建筑结构学报,2011,32(11):74-81.(NIE Jianguo,BU Fanmin,FAN Jiansheng.Experimental research on seismic behavior of low shear-span ratio composite shear wall with double steel plates and infill concrete[J].Journal of Building Structures,2011,32(11):74-81.(in Chinese))
[7]卜凡民,聂建国,樊健生.高轴压比下中高剪跨比双钢板-混凝土组合剪力墙抗震性能试验研究[J].建筑结构学报,2013,34(4):91-98.(BU Fanmin,NIE Jianguo,FAN Jiansheng.Experimental study on seismic behavior of medium and high shear-pan ratio composite shear wall with double steel plates and infill concrete under high axial compression ratio[J].Journal of Building Structures,2013,34(4):91-98.(in Chinese))
[8]JI X D,JIANG F M,QIAN J R.Seismic behavior of steel tube-double steel plate-concrete composite walls:experimental tests[J].Journal of Constructional Steel Research,2013,86(6):17-30.
[9]刘鸿亮,蔡健,杨春,等.带约束拉杆双层钢板内填混凝土组合剪力墙抗震性能试验研究[J].建筑结构学报,2013,34(6):84-92.(LIU Hongliang,CAI Jian,YANG Chun,et al.Experimental study on seismic behavior of composite shear wall with double steel plates and infill concrete with binding bars[J].Journal of Building Structures,2013,34(6):84-92.(in Chinese))
[10]马恺泽,刘伯权,鄢红良,等.高轴压比双层钢板-高强混凝土组合剪力墙抗震性能试验研究[J].工程力学,2014,31(5):218-224.(MA Kaize,LIU Boquan,YAN Hongliang,et al.Experimental investigation on aseismic behavior of dual steel high strength concrete shear walls with high axial load ratio[J].Engineering Mechanics,2014,31(5):218-224.(in Chinese))
[11]PARK R,FALCONER T J.Ductility of prestressed concrete piles subjected to simulated seismic loading[J].PCI Journal,1983,28(5):112-144.
[12]陈庆军,蔡健,杨平,等.节点区柱钢管不贯通式钢管混凝土柱-梁节点抗震性能[J].土木工程学报,2009,42(12):33-42.(CHEN Qingjun,CAI Jian,YANG Ping,et al.Seismic behavior of concrete filled steel tubular column-beam joints with discontinuous column tubes[J].China Civil Engineering Journal,2009,42(12):33-42.(in Chinese))