钢管混凝土柱带钢板耗能键组合剪力墙抗震研究
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摘要
提出了连排钢管混凝土柱带钢板耗能键组合剪力墙,它由钢管混凝土连排柱、柱间钢板耗能键、钢板耗能键外包混凝土条带三种单元组合而成。进行了4个不同设计参数试件的低周反复荷载试验研究。分析了各试件的承载力、刚度及其退化过程、滞回特性、延性和破坏特征,探讨了分灾耗能机制。研究表明:连排钢管混凝土柱带钢板耗能键组合剪力墙,承载力较大,后期刚度较稳定;混凝土条带在开裂与闭合过程中消耗地震能量,钢板耗能键通过弯剪变形消耗地震能量,钢管与混凝土条带共同工作协同耗能,具有良好的抗震耗能机制;这种新型组合剪力墙具有较强综合抗震耗能能力。
A novel composite shear wall with paralleled CFST columns and steel plate energy-consuming connectors is put forward in this paper.It consists of three units,which are paralleled CFST columns,steel plate connectors between columns,and outside concrete strips.The experimental study on 4 specimens with different design parameters is carried out under low cyclic loading.The load-bearing capacity,stiffness and its degradation,hysteretic properties,ductility,and failure characteristic of specimens are compared and analyzed.The damage reduction mechanism is discussed.Results of the experiments show that the new wall has high load-bearing capacity and its later stiffness is stable.The energy is consumed during the cracks opening and closing on the concrete strips,so do the steel plate connectors during their flexure-shear deformation.The new composite shear wall has good seismic mechanism,and it can consume energy when the steel tubes work with the concrete strips.It has great integrated seismic energy-dissipating capacity.
A novel composite shear wall with paralleled CFST columns and steel plate energy-consuming connectors is put forward in this paper.It consists of three units,which are paralleled CFST columns,steel plate connectors between columns,and outside concrete strips.The experimental study on 4 specimens with different design parameters is carried out under low cyclic loading.The load-bearing capacity,stiffness and its degradation,hysteretic properties,ductility,and failure characteristic of specimens are compared and analyzed.The damage reduction mechanism is discussed.Results of the experiments show that the new wall has high load-bearing capacity and its later stiffness is stable.The energy is consumed during the cracks opening and closing on the concrete strips,so do the steel plate connectors during their flexure-shear deformation.The new composite shear wall has good seismic mechanism,and it can consume energy when the steel tubes work with the concrete strips.It has great integrated seismic energy-dissipating capacity.
引文
[1]钱稼茹,李耕勤.钢筋混凝土抗震墙墙肢约束边缘构件基于弹塑性层间位移角的设计[J].建筑结构,2002,32(8):3-6.QIAN Jiaru,LI Gengqin.Elastic-plastic drift-based design of confined boundary elements of shear wall piers[J].Building Structure,2002,32(8):3-6.(in Chinese)
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[9]魏德敏,温沛纲,卞宗舒.新型带缝钢板剪力墙的试验研究及其数值模拟[J].地震工程与工程振动,2006,26(1):129-133WEI Demin,WEN Peigang,BIAN Zongshu.Experimental investigation and simulation analysis of new steel plate shear walls with slits[J].Journalof Earthquake Engineering and Engineering Vibration,2006,26(1):129-133.(in Chinese)
[10]Driver Robert G Kulak Geoffrey L.,et al.Cyclic test of four-story steel plate shear wall[J].Journal of Structure Engineering,1998,124(2):112-120.
[11]Darren Vian,M ASCE,Michel Bruneau,M ASCE,Tsai K C,et al.Special perforated steel plate shear walls with reduced beam section anchorbeams.I:Experimental investigation[J].Journal of Structural Engineering,2009,135(3):211-220.
[12]Makoto Maruta etc.Structural capacities of H-shaped RC core wall subjected to lateral load and torsion[A].12WCEE[C].Paper NO.1028,FEB,2000.
[2]吕西林,董宇光,丁子文.截面中部配置型钢的混凝土剪力墙抗震性能研究[J].地震工程与工程振动,2006,26(6):101-107.LU Xilin,DONG Yuguang,DING Ziwen.Study on seismic behavior of steel reinforced concrete wall[J].Jourral of Earthquake Engineering andEngineering Vibration,2006,26(6):101-107.(in Chinese)
[3]韩林海,杨有福.现代钢管混凝土结构技术[M].2版.北京:科学出版社,2007.HAN Linhai,YANG Youfu.Modern concrete filled steel tube structure technology[M].2nd ed.Beijing:Science Press,2007.(in Chinese)
[4]刘维亚.钢与混凝土组合结构理论与实践[M].北京:中国建筑工业出版社,2008.LIU Weiya.Theory and practice on steel-concrete composite structure[M].Beijing:China Architecture&Building Press,2008.(in Chinese)
[5]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 doublesteel plates and infill concrete[J].Journal of Building Structures,2011,32(11):74-81.(in Chinese)
[6]聂建国,黄远,樊健生.钢板剪力墙结构竖向防屈曲简化设计方法[J].建筑结构,2010,40(4):1-4,18.NIE Jianguo,HUANG Yuan,FAN Jiansheng.Vertical buckling-resistant design of steel plate shear wall structure[J].Building Structure,2010,40(4):1-4,18.(in Chinese)
[7]赵作周,肖明,钱稼茹,等.开缝钢板墙抗震性能的试验研究[J].建筑结构,2007,37(12):105-109.ZHAO Zuozhou,XIAO Ming,QIAN Jiaru,et al.Experimental study on seismic behavior of steel plate shear walls with vertical slits[J].BuildingStructure,2007,37(12):105-109.(in Chinese)
[8]赵作周,肖明,柯江华,等.开缝钢板墙及其在高层钢框架结构中应用试设计[J].建筑结构学报,2010,31(9):9-15.ZHAO Zuozhou,XIAO Ming,KE Jianghua,et al.Steel plate shear wall with vertical slips and its trial application in a high-rise steel framebuilding structure[J].Journal of Building Structures,2010,31(9):9-15.(in Chinese)
[9]魏德敏,温沛纲,卞宗舒.新型带缝钢板剪力墙的试验研究及其数值模拟[J].地震工程与工程振动,2006,26(1):129-133WEI Demin,WEN Peigang,BIAN Zongshu.Experimental investigation and simulation analysis of new steel plate shear walls with slits[J].Journalof Earthquake Engineering and Engineering Vibration,2006,26(1):129-133.(in Chinese)
[10]Driver Robert G Kulak Geoffrey L.,et al.Cyclic test of four-story steel plate shear wall[J].Journal of Structure Engineering,1998,124(2):112-120.
[11]Darren Vian,M ASCE,Michel Bruneau,M ASCE,Tsai K C,et al.Special perforated steel plate shear walls with reduced beam section anchorbeams.I:Experimental investigation[J].Journal of Structural Engineering,2009,135(3):211-220.
[12]Makoto Maruta etc.Structural capacities of H-shaped RC core wall subjected to lateral load and torsion[A].12WCEE[C].Paper NO.1028,FEB,2000.
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