不同边缘构件约束剪力墙抗震性能试验研究
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摘要
针对剪力墙结构在实际应用过程采用不同边缘构件约束方式的特点,对一组1/4缩尺比例的三种不同边缘构件(暗柱、明柱、翼缘)的剪力墙模型进行了低周反复水平荷载作用试验研究。通过试验研究分析了不同形式边缘构件与墙体的共同工作性能,对比研究了不同边缘构件约束条件对中高剪力墙受力特点、破坏和耗能机理的影响,并从承载力、延性、恢复力特性和耗能能力等方面来综合评价三种不同边缘构件约束条件下剪力墙的抗震性能。研究结果表明,随着边缘构件约束作用的加强,剪力墙的平面外稳定性增强,剪力墙承载能力有一定的提高,但延性系数和耗能能力则相应有所降低。
The use of shear walls with different boundary restraints is quite popular in practice,thus a group of 1/4 scale model of shear walls with three different kinds of boundary restraints(embedded column,column,flange) are tested under low frequency cyclic and reversed lateral loads in this paper.The interacting behavior of the boundary with the shear wall is studied,also the failure mechanism and energy dissipation mechanism of moderate and tall shear walls with different boundary restraints are compared.Moreover the seismic behavior of shear walls with three kinds of boundary restraints is evaluated by the comparison of load resistant capacity,ductility,restoring force characteristics as well as energy dissipation capacity.The experimental results show that the stability of out-wall-plane is becoming intensified and the load resistant capacity of the shear wall is enhanced,but the ductility and energy dissipation capacity are decreasing with the increasing of the boundary restraint effect.
The use of shear walls with different boundary restraints is quite popular in practice,thus a group of 1/4 scale model of shear walls with three different kinds of boundary restraints(embedded column,column,flange) are tested under low frequency cyclic and reversed lateral loads in this paper.The interacting behavior of the boundary with the shear wall is studied,also the failure mechanism and energy dissipation mechanism of moderate and tall shear walls with different boundary restraints are compared.Moreover the seismic behavior of shear walls with three kinds of boundary restraints is evaluated by the comparison of load resistant capacity,ductility,restoring force characteristics as well as energy dissipation capacity.The experimental results show that the stability of out-wall-plane is becoming intensified and the load resistant capacity of the shear wall is enhanced,but the ductility and energy dissipation capacity are decreasing with the increasing of the boundary restraint effect.
引文
1吕西林,金国芳,吴晓涵.钢筋混凝土结构非线性有限元理论与应用.同济大学出版社,1997
2 X ilin Lu,Yuntao Chen.Modeling of Coup led ShearW allsand Its Experim ental Verification.Journal of StructuralEngineering,ASCE,2005;131
3姬守中.高层钢筋混凝土框-剪结构在地震作用下的弹塑性时程反应分析.同济大学申请博士学位论文,2002
4赵祥,王社良,刘瑞杰等.带边框柱剪力墙模型抗震性能试验研究.西安建筑科技大学学报(自然科学版),2004;36(3)
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2 X ilin Lu,Yuntao Chen.Modeling of Coup led ShearW allsand Its Experim ental Verification.Journal of StructuralEngineering,ASCE,2005;131
3姬守中.高层钢筋混凝土框-剪结构在地震作用下的弹塑性时程反应分析.同济大学申请博士学位论文,2002
4赵祥,王社良,刘瑞杰等.带边框柱剪力墙模型抗震性能试验研究.西安建筑科技大学学报(自然科学版),2004;36(3)
5李宏男,李兵.钢筋混凝土剪力墙抗震恢复力模型及试验研究.建筑结构学报,2004;25(5)
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