内藏桁架的混凝土组合低剪力墙试验
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摘要
提出了内藏桁架(包括钢桁架、钢筋桁架及钢-钢筋组合桁架)混凝土组合剪力墙,该新型组合剪力墙包含2种组合:不同受力体系,桁架与剪力墙的组合;不同材料,型钢与混凝土的组合,形成了双重组合剪力墙.进行了6个1/3缩尺的剪力墙的抗震性能试验研究,包括普通混凝土剪力墙、内藏钢框架混凝土剪力墙、内藏钢筋桁架混凝土剪力墙、内藏钢框架-钢筋桁架混凝土剪力墙、内藏钢桁架混凝土剪力墙及内藏钢-钢筋组合桁架混凝土剪力墙.在试验研究基础上,对比分析了各剪力墙的刚度及其衰减过程、承载力、延性、滞回特性、能耗及破坏特征.试验表明,内藏钢框架及内藏不同材料桁架混凝土剪力墙的抗震性能比普通混凝土剪力墙明显提高.建立了内藏桁架混凝土剪力墙的承载力计算模型,计算结果与实测结果符合较好.提出了该新型剪力墙抗震设计的建议.
Shear wall with concealed truss is brought forward.This concealed truss can be constructed with profiled steel,steel bar or profiled steel appending steel bar.This new composite shear wall includes two kinds of composition.One is composition of two bearing systems,including truss and shear wall,the other is composition of two materials,including steel and concrete.The experimental study on the seismic behavior of six 1/3 scale shear walls,including a usual shear wall,a shear wall with steel frame,a shear wall with steel bar truss,a shear wall with steel frame and steel bar truss,a shear wall with steel truss and a shear wall with steel and steel bar truss,were carried out.Based upon the experimental study,the stiffness and its attenuation,load-carrying capacity, ductility,hysteretic property,energy dissipation and failure phenomena of each shear wall are contrastively analyzed.The experimental results show that the seismic behavior of the shear wall with steel frame and every truss with different materials is obviously improved.The formulas of load-carrying capacity are established.The results obtained from the formulas and those from experiment are in good agreement.Finally,some suggestions for seismic design of this new shear wall are proposed.
Shear wall with concealed truss is brought forward.This concealed truss can be constructed with profiled steel,steel bar or profiled steel appending steel bar.This new composite shear wall includes two kinds of composition.One is composition of two bearing systems,including truss and shear wall,the other is composition of two materials,including steel and concrete.The experimental study on the seismic behavior of six 1/3 scale shear walls,including a usual shear wall,a shear wall with steel frame,a shear wall with steel bar truss,a shear wall with steel frame and steel bar truss,a shear wall with steel truss and a shear wall with steel and steel bar truss,were carried out.Based upon the experimental study,the stiffness and its attenuation,load-carrying capacity, ductility,hysteretic property,energy dissipation and failure phenomena of each shear wall are contrastively analyzed.The experimental results show that the seismic behavior of the shear wall with steel frame and every truss with different materials is obviously improved.The formulas of load-carrying capacity are established.The results obtained from the formulas and those from experiment are in good agreement.Finally,some suggestions for seismic design of this new shear wall are proposed.
引文
[1]曹万林,张建伟,田宝发,等.带暗支撑低矮剪力墙抗震性能试验及承载力计算[J].土木工程学报,2004,37(3):44-51.Cao Wanlin,Zhang Jianwei,Tian Baofa,et al.Experi-mental study on aseismatic property and calculation ofload-carrying capacity for low-rise RC shear walls withconcealed bracings[J].China Civil Engineering Jour-nal,2004,37(3):44-51.(in Chinese)
[2]曹万林,张建伟,田宝发,等.钢筋混凝土带暗支撑中高剪力墙抗震性能研究[J].建筑结构学报,2002,23(6):26-32、55.Cao Wanlin,Zhang Jianwei,Tian Baofa,et al.Experi-mental study on seismic behavior of mid rise RC shearwall with concealed bracings[J].Journal of BuildingStructuresm,2002,23(6):26-32,55.(in Chinese)
[3]曹万林,杨兴民,黄选明,等.带钢筋及钢骨暗支撑剪力墙抗震性能试验研究[J].世界地震工程,2005,21(1):1-6.Cao Wanlin,Yang Xingmin,Huang Xuanming,et al.Experimental study on seismic behavior of RC shearwallswith concealed SRC bracings[J].World Informa-tion on Earthquake Engineering,2005,21(1):1-6.(in Chinese)
[4]Cao W L,Xue S D,Zhang J W.Seismic performanceof RC shear walls with concealed bracing[J].Advancesin Structural Engineering,2003,6(1):1-13.
[5]王志浩,方鄂华,钱稼如.钢骨混凝土剪力墙的抗弯性能[J].建筑结构,1998(2):13-16.Wang Zhihao,Fang Ehua,Qian Jiaru.Flexural behav-ior of steel reinforced concrete shear walls[J].BuildingStructure,1998(2):13-16.(in Chinese)
[6]方鄂华,叶列平.钢骨混凝土剪力墙设计[J].建筑结构,1999(12):57-59.Fang Ehua,Ye Lieping.Design of SRC shear wall[J].Building Structure,1999(12):57-59.(in Chinese)
[7]刘航,蓝宗建,庞同和,等.劲性钢筋混凝土低剪力墙抗震性能试验研究[J].工业建筑,1997,27(5):31-36,47.Liu Hang,Lan Zongjian,Pang Tonghe,et al.Test andanalysis on seismic behavior of low-rise steel-encasedreinforced concrete shear walls[J].Industrial Construc-tion,1997,27(5):31-36,47.(in Chinese)
[8]Matsumoto T.The structural performance of SRC multi-story shear walls with infilled precast concrete panels[J].Transactions of the Japan Concrete Institute,1998,20:187-194.
[9]Yamada M.Steel panel encased RC composite shearwalls[C]//Composite Construction in Steel and Con-creteⅡ.Potosi,MO,USA,1992:899-912.
[10]Wallace J W.Lateral-load behavior of shear walls withstructural steel boundary columns[C]//Composite andHybrid Structures.Los Angeles,2000:801-809.
[2]曹万林,张建伟,田宝发,等.钢筋混凝土带暗支撑中高剪力墙抗震性能研究[J].建筑结构学报,2002,23(6):26-32、55.Cao Wanlin,Zhang Jianwei,Tian Baofa,et al.Experi-mental study on seismic behavior of mid rise RC shearwall with concealed bracings[J].Journal of BuildingStructuresm,2002,23(6):26-32,55.(in Chinese)
[3]曹万林,杨兴民,黄选明,等.带钢筋及钢骨暗支撑剪力墙抗震性能试验研究[J].世界地震工程,2005,21(1):1-6.Cao Wanlin,Yang Xingmin,Huang Xuanming,et al.Experimental study on seismic behavior of RC shearwallswith concealed SRC bracings[J].World Informa-tion on Earthquake Engineering,2005,21(1):1-6.(in Chinese)
[4]Cao W L,Xue S D,Zhang J W.Seismic performanceof RC shear walls with concealed bracing[J].Advancesin Structural Engineering,2003,6(1):1-13.
[5]王志浩,方鄂华,钱稼如.钢骨混凝土剪力墙的抗弯性能[J].建筑结构,1998(2):13-16.Wang Zhihao,Fang Ehua,Qian Jiaru.Flexural behav-ior of steel reinforced concrete shear walls[J].BuildingStructure,1998(2):13-16.(in Chinese)
[6]方鄂华,叶列平.钢骨混凝土剪力墙设计[J].建筑结构,1999(12):57-59.Fang Ehua,Ye Lieping.Design of SRC shear wall[J].Building Structure,1999(12):57-59.(in Chinese)
[7]刘航,蓝宗建,庞同和,等.劲性钢筋混凝土低剪力墙抗震性能试验研究[J].工业建筑,1997,27(5):31-36,47.Liu Hang,Lan Zongjian,Pang Tonghe,et al.Test andanalysis on seismic behavior of low-rise steel-encasedreinforced concrete shear walls[J].Industrial Construc-tion,1997,27(5):31-36,47.(in Chinese)
[8]Matsumoto T.The structural performance of SRC multi-story shear walls with infilled precast concrete panels[J].Transactions of the Japan Concrete Institute,1998,20:187-194.
[9]Yamada M.Steel panel encased RC composite shearwalls[C]//Composite Construction in Steel and Con-creteⅡ.Potosi,MO,USA,1992:899-912.
[10]Wallace J W.Lateral-load behavior of shear walls withstructural steel boundary columns[C]//Composite andHybrid Structures.Los Angeles,2000:801-809.
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