边缘构件配箍对钢筋混凝土剪力墙抗震性能的影响
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摘要
建筑结构基于性能的抗震设计要求有效地控制结构的变形,边缘约束情况对剪力墙的抗震性能影响显著,边缘构件配箍特征值的合理配置可以形成剪力墙边缘混凝土的有效约束,使剪力墙在地震作用下保持良好的性能。文中基于对4片不同配箍特征值的钢筋混凝土剪力墙的低周反复加载试验结果的研究分析,讨论了不同配箍特征值对钢筋混凝土剪力墙的破坏模式、承载力、位移延性系数、刚度及耗能能力的影响,分析了不同配箍特征值剪力墙的损伤机理,并对剪力墙设计给出了相关建议。
The performance-based seismic design of the structure needs to control the deformation structural of the effectively.The condition of the boundary restraint has a significant influence on the seismic behavior of shear walls,and proper configuration of the boundary stirrup can form well restraint effect,which makes the reinforced concrete shear wall perform well under earthquakaction.Four reinforcement concrete shear walls with different stirrup ratio were tested under low frequency cyclic and reversed lateral loads in this study,and the test results were also analyzed.The influence of the boundary stirrup on the damage mode,the bearing capacity,the displacement ductility ratio,the stiffness and the energy dissipation capacity of the reinforcement concrete shear wall were discussed in detail.The damage mechanics of the shear wall with different boundary stirrup radio were also analyzed and correlative suggestions for shear wall design were proposed.
The performance-based seismic design of the structure needs to control the deformation structural of the effectively.The condition of the boundary restraint has a significant influence on the seismic behavior of shear walls,and proper configuration of the boundary stirrup can form well restraint effect,which makes the reinforced concrete shear wall perform well under earthquakaction.Four reinforcement concrete shear walls with different stirrup ratio were tested under low frequency cyclic and reversed lateral loads in this study,and the test results were also analyzed.The influence of the boundary stirrup on the damage mode,the bearing capacity,the displacement ductility ratio,the stiffness and the energy dissipation capacity of the reinforcement concrete shear wall were discussed in detail.The damage mechanics of the shear wall with different boundary stirrup radio were also analyzed and correlative suggestions for shear wall design were proposed.
引文
[1]Whittaker A,Constantinou M,Tsopelas P.Displacementestimates for performance-based seismic design[J].Journal of Structural Engineering-ASCE,1998,124(8):905-912.
[2]Lefas L D,Kotsovos M D,Ambraseys N N.Behavior ofreinforced concrete structural walls:strength,deformation characteristics,and failure mechanism[J].ACI structural journal,1990,87(1):12-31.
[3]章红梅,吕西林,鲁亮,等.边缘约束构件对钢筋混凝土剪力墙抗震性能影响的研究[J].地震工程与工程振动,2007,27(1):92-98.
[4]章红梅,吕西林.粘钢加固剪力墙抗震性能试验研究[J].结构工程师,2007,22(1):72-76.
[5]Zhang Hongmei,Lu Xilin.Experimental study onseismic behavior of RC walls strengthened by bondedsteel[C].Architecture in Harmony,2006:421-425.
[2]Lefas L D,Kotsovos M D,Ambraseys N N.Behavior ofreinforced concrete structural walls:strength,deformation characteristics,and failure mechanism[J].ACI structural journal,1990,87(1):12-31.
[3]章红梅,吕西林,鲁亮,等.边缘约束构件对钢筋混凝土剪力墙抗震性能影响的研究[J].地震工程与工程振动,2007,27(1):92-98.
[4]章红梅,吕西林.粘钢加固剪力墙抗震性能试验研究[J].结构工程师,2007,22(1):72-76.
[5]Zhang Hongmei,Lu Xilin.Experimental study onseismic behavior of RC walls strengthened by bondedsteel[C].Architecture in Harmony,2006:421-425.
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