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设置暗支撑钢筋混凝土剪力墙的抗震性能试验研究
引用本文:王立长,李凡璘,朱维平,王国雷,李宏男,肖诗云.设置暗支撑钢筋混凝土剪力墙的抗震性能试验研究[J].建筑结构学报,2007,28(Z1):51-58.
作者姓名:王立长  李凡璘  朱维平  王国雷  李宏男  肖诗云
作者单位:大连市建筑设计研究院,大连理工大学海岸与近海工程国家重点实验室
摘    要:24片剪力墙缩尺模型试件按剪跨比1.0、1.5、2.0分为三组,每组试件中分别有普通剪力墙、设置型钢暗柱剪力墙、设置型钢暗支撑和钢筋支撑剪力墙,并对其进行了低周反复荷载作用抗震性能试验,探讨了设置暗支撑剪力墙的承载力、变形、刚度衰减、滞回曲线和破坏形态,并与普通剪力墙进行对比。试验表明,设置暗支撑剪力墙的开裂荷载和开裂位移与普通剪力墙相差很小,但极限承载力、极限位移显著增加,当λ=1.0、1.5、2.0时,极限承载力平均提高了44.0%、75.0%、37.0%,极限位移平均增加了26.0%、45.0%、46.0%,延性和耗能能力显著提高。研究表明,设置暗支撑的极限承载力与本文采用的计算模型计算结果吻合较好。暗支撑的设置明显提高了剪力墙的抗震性能。

关 键 词:剪力墙  暗支撑  试验研究  抗震性能

Experimental study on seismic behavior of shear wall with concealed bracings
WANG Lichang,LI Fanlin,ZHU Weiping,WANG Guolei,LI Hongnan,XIAO Shiyun.Experimental study on seismic behavior of shear wall with concealed bracings[J].Journal of Building Structures,2007,28(Z1):51-58.
Authors:WANG Lichang  LI Fanlin  ZHU Weiping  WANG Guolei  LI Hongnan  XIAO Shiyun
Institution:WANG Lichang,LI Fanlin,ZHU Weiping,WANG Guolei,LI Hongnan,XIAO Shiyun( Dalian Institute of Arehitectural Design and Research,Dalian,China,.State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian,China)
Abstract:Twenty-four models of reduced scale shear wall are divided into three groups according to the ratio of shear span 1.0,1.5,2.0.Ordinary shear wall,shear wall with shaped steel concealed column,concealed bracing and reinforced concealed bracing are included in each group.Then the experiments on seismic behavior under cyclic loading are carried out.The load carrying capacity,deformation,stiffness degradation,hysteretic curve,failure modes of shear wall with concealed bracing are studied,in comparison with ordinary shearwall.The experiments indicate that there is little difference between ordinary shear wall and shear wall with concealed bracing under crack load and deformation,but the ultimate carrying capacity,deformation are increased obviously.When shear span ratio equals to 1.0,1.5,2.0,the ultimate load carrying capacity are increased more than 44.0%,75.0%,37.0% on average.The ultimate deformation are increased more than 26.0%,45.0%,46.0% on average.Meanwhile the ductility and the capacity of energy dissipation are also increased obviously.The experiments prove that the ultimate load carrying capacity of shear wall with concealed bracing is rather close to the result of calculation model;The concealed bracing can improve the seismic behavior of shear wall obviously.
Keywords:shear wall  concealed bracing  experimental study  seismic performance
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