半刚接框架-斜加劲钢板剪力墙低周反复荷载试验研究
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摘要
对一榀单跨两层半刚接框架-斜加劲钢板剪力墙结构进行了低周反复荷载试验,分析结构破坏模式和耗能机理,得到了承载力、延性、刚度、耗能能力等指标。结果表明:该种结构具有良好的延性和耗能性能,安全储备高;半刚框架和墙板协同工作良好;斜加劲肋的设置缓解了钢板沿拉力带方向的面外变形,提高了墙体的弹性屈曲荷载及初始刚度,减轻了滞回曲线的"捏缩"现象。研究为该种结构体系的工程应用和理论分析提供了依据。
Two-story single bay specimens of semi-rigid composite steel frame with diagonally stiffened steel plate shear wall were tested under low cyclic loading to analyze the failure mode and energy dissipation mechanism.Some important indexes were obtained such as load-carrying capacity,ductility,lateral stiffness and energy dissipation capacity.The results show that the specimens have great ductility,energy dissipation capacity and safety margin.The cooperative work is good between the frame and the wall.The deformation out of the panels is relieved by arranging diagonally stiffening.The initial stiffness and the elastic buckling load of panels are improved.The shrinkage of hysteretic loop is lightened.The research provides a basis for engineering application and theoretical analysis of the structural system.
Two-story single bay specimens of semi-rigid composite steel frame with diagonally stiffened steel plate shear wall were tested under low cyclic loading to analyze the failure mode and energy dissipation mechanism.Some important indexes were obtained such as load-carrying capacity,ductility,lateral stiffness and energy dissipation capacity.The results show that the specimens have great ductility,energy dissipation capacity and safety margin.The cooperative work is good between the frame and the wall.The deformation out of the panels is relieved by arranging diagonally stiffening.The initial stiffness and the elastic buckling load of panels are improved.The shrinkage of hysteretic loop is lightened.The research provides a basis for engineering application and theoretical analysis of the structural system.
引文
[1]Thorburn L J,Kulak G L,Montgomery C J,Analysis of steel plate shear walls[R].Structural engineering Report No.107,1983,Departmentof Civil Engineering,University of Alberta,Edmonton,Canada.
[2]Lubell A S,Prion HG L,Ventura C E,et al.Unstiffened steel plate shear walls performance under cyclic Load[J].Journal of Structural Engi-neering.2000,126(4):453-460.
[3]Tromposch E W,Kulak G L,Cyclic and static behaviour of thin panel steel plate shear walls[R].Structural engineering Report No.145,1987,Department of Civil Engineering,University of Alberta,Edmonton,Canada.
[4]Roberts T,Sabouri-Ghomi S.Hysteretic characteristics of unstiffened plate shear panels[J].Thin-walled Structures,1991,12(2):145-162.
[5]Elgaaly M,Caccese V,Du C.Post-buckling behavior of steel plate shear walls under cyclic loads[J].Journal of Structural Engineering,1993,119(2):588-605.
[6]王迎春,郝际平,李峰,等.钢板剪力墙的力学性能研究[J].西安建筑科技大学学报,2007,39(2):181-186.
[7]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):129-133.
[8]陈国栋,郭彦林,范珍,等.钢板剪力墙低周反复荷载试验研究[J].建筑结构学报,2004,25(2):19-26.
[9]陈国栋.钢板剪力墙结构性能研究[D].北京:清华大学,2002.
[10]GB/T228-2002金属材料室温拉伸试验方法[S].
[11]GB/T2975-1998钢及钢产品力学性能试验取样位置及试样制备[S].
[12]JGJ101-96建筑抗震试验方法规程[S].北京:中国建筑工业出版社,1997.
[2]Lubell A S,Prion HG L,Ventura C E,et al.Unstiffened steel plate shear walls performance under cyclic Load[J].Journal of Structural Engi-neering.2000,126(4):453-460.
[3]Tromposch E W,Kulak G L,Cyclic and static behaviour of thin panel steel plate shear walls[R].Structural engineering Report No.145,1987,Department of Civil Engineering,University of Alberta,Edmonton,Canada.
[4]Roberts T,Sabouri-Ghomi S.Hysteretic characteristics of unstiffened plate shear panels[J].Thin-walled Structures,1991,12(2):145-162.
[5]Elgaaly M,Caccese V,Du C.Post-buckling behavior of steel plate shear walls under cyclic loads[J].Journal of Structural Engineering,1993,119(2):588-605.
[6]王迎春,郝际平,李峰,等.钢板剪力墙的力学性能研究[J].西安建筑科技大学学报,2007,39(2):181-186.
[7]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):129-133.
[8]陈国栋,郭彦林,范珍,等.钢板剪力墙低周反复荷载试验研究[J].建筑结构学报,2004,25(2):19-26.
[9]陈国栋.钢板剪力墙结构性能研究[D].北京:清华大学,2002.
[10]GB/T228-2002金属材料室温拉伸试验方法[S].
[11]GB/T2975-1998钢及钢产品力学性能试验取样位置及试样制备[S].
[12]JGJ101-96建筑抗震试验方法规程[S].北京:中国建筑工业出版社,1997.
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