轴压比与剪跨比对带约束拉杆双层钢板-混凝土组合剪力墙抗震性能影响研究
|
摘要
为研究轴压比与剪跨比对带约束拉杆双层钢板-混凝土组合剪力墙抗震性能的影响,完成了5个缩尺模型试件的拟静力试验。研究结果表明:试件破坏时底部墙体钢板均受压屈曲,其中低剪跨比(剪跨比为1.0)试件出现典型的剪压破坏现象,而中高剪跨比(剪跨比为1.5~2.0)试件出现典型的压弯破坏现象;高轴压比、低剪跨比的带约束拉杆双层钢板-混凝土组合剪力墙仍具有良好的承载力、变形及耗能能力;增大轴压比可提高试件的承载力,但其变形和滞回性能有所降低;减小剪跨比,试件的承载力和刚度有较大幅度提高,耗能能力有所下降,而延性和承载力退化变化不明显。
To further study the influence of axial compression ratio and shear-span ratio on the seismic behavior of composite shear wall with double steel plates and infill concrete with binding bars,cyclic testing was performed on five scaled specimens. The test result shows that the local buckling occurs at the lower part of the wall before failure,specimen with low shear-span ratio(λ = 1. 0) encounters shear compression failure while those with high shear-span ratios(λ = 1. 5 ~ 2. 0) show a typical flexural failure. The test result indicates that the specimens also show good bearing capacity,deformability and energy dissipation under high axial compression ratio and low shear-span ratio. The bearing capacity of the specimens is increased with the increase of the axial compression ratio,however the deformation and hysteretic behavior are reduced. With the decrease of shear-span ratio,the bearing capacity and stiffness of the specimens are rapidly increased,energy dissipation decreased,while the ductility and strength deterioration are not significantly affected by shear-span ratio.
To further study the influence of axial compression ratio and shear-span ratio on the seismic behavior of composite shear wall with double steel plates and infill concrete with binding bars,cyclic testing was performed on five scaled specimens. The test result shows that the local buckling occurs at the lower part of the wall before failure,specimen with low shear-span ratio(λ = 1. 0) encounters shear compression failure while those with high shear-span ratios(λ = 1. 5 ~ 2. 0) show a typical flexural failure. The test result indicates that the specimens also show good bearing capacity,deformability and energy dissipation under high axial compression ratio and low shear-span ratio. The bearing capacity of the specimens is increased with the increase of the axial compression ratio,however the deformation and hysteretic behavior are reduced. With the decrease of shear-span ratio,the bearing capacity and stiffness of the specimens are rapidly increased,energy dissipation decreased,while the ductility and strength deterioration are not significantly affected by shear-span ratio.
引文
[1]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))
[2]赵宏,雷强,侯胜利,等.八柱巨型结构在广州东塔超限设计中的工程应用[J].建筑结构,2012,41(10):1-6.(ZHAO Hong,LEI Qiang,HOU Shengli,et al.Engineering application of 8 columns mega framecore wall system in Guangzhou East Tower[J].Building Structure,2012,41(10):1-6.(in Chinese))
[3]EMORI K.Compressive and shear strength of concrete filled steel box wall[J].Steel Structures,2002,26(2):29-40.
[4]EMORI K.Shear strength and analysis evaluation for steel concrete wall box unit[J].Journal of Construction Steel,2010,9(10):177-184.
[5]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.
[6]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.
[7]EOM T S,PARK H G,LEE C H,et al.Behavior of double skin composite wall subjected to in-plane cyclic loading[J].Journal of Structural Engineering,2009,135(10):1239-1249.
[8]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))
[9]聂建国,卜凡民,樊健生.高轴压比、低剪跨比双钢板-混凝土组合剪力墙拟静力试验研究[J].工程力学,2013,30(6):60-66.(NIE Jianguo,BU Fanmin,FAN Jiansheng.Quasi-static test on low shear-span ratio composite shear wall with double steel plates and infill concrete under high axial compression ratio[J].Engineering Mechanics,2013,30(6):60-66.(in Chinese))
[10]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))
[11]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):61-69.(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):61-69.(in Chinese))
[12]建筑抗震设计规范:GB 50011—2010[S].北京:中国建筑工业出版社,2010.(Code for seismic design of building structures:GB 50011—2010[S].Beijing:China Architecture&Building Press,2010.(in Chinese))
[13]过镇海,时旭东.钢筋混凝土原理和分析[M].北京:清华大学出版社,2003:337-339.(GUO Zhenhai,SHI Xudong.Reinforced concrete theory and analyse[M].Beijing:Tsinghua University Press,2003:337-339.(in Chinese))
[2]赵宏,雷强,侯胜利,等.八柱巨型结构在广州东塔超限设计中的工程应用[J].建筑结构,2012,41(10):1-6.(ZHAO Hong,LEI Qiang,HOU Shengli,et al.Engineering application of 8 columns mega framecore wall system in Guangzhou East Tower[J].Building Structure,2012,41(10):1-6.(in Chinese))
[3]EMORI K.Compressive and shear strength of concrete filled steel box wall[J].Steel Structures,2002,26(2):29-40.
[4]EMORI K.Shear strength and analysis evaluation for steel concrete wall box unit[J].Journal of Construction Steel,2010,9(10):177-184.
[5]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.
[6]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.
[7]EOM T S,PARK H G,LEE C H,et al.Behavior of double skin composite wall subjected to in-plane cyclic loading[J].Journal of Structural Engineering,2009,135(10):1239-1249.
[8]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))
[9]聂建国,卜凡民,樊健生.高轴压比、低剪跨比双钢板-混凝土组合剪力墙拟静力试验研究[J].工程力学,2013,30(6):60-66.(NIE Jianguo,BU Fanmin,FAN Jiansheng.Quasi-static test on low shear-span ratio composite shear wall with double steel plates and infill concrete under high axial compression ratio[J].Engineering Mechanics,2013,30(6):60-66.(in Chinese))
[10]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))
[11]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):61-69.(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):61-69.(in Chinese))
[12]建筑抗震设计规范:GB 50011—2010[S].北京:中国建筑工业出版社,2010.(Code for seismic design of building structures:GB 50011—2010[S].Beijing:China Architecture&Building Press,2010.(in Chinese))
[13]过镇海,时旭东.钢筋混凝土原理和分析[M].北京:清华大学出版社,2003:337-339.(GUO Zhenhai,SHI Xudong.Reinforced concrete theory and analyse[M].Beijing:Tsinghua University Press,2003:337-339.(in Chinese))