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《Journal of Zhejiang University(Engineering Science)》 2014-11
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Hysteretic behavior of steel plate shear wall with slits of unequal length

LU Jin-yu;TANG Yi;SHU Gan-ping;WANG Heng-hua;Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education,Southeast University;School of Civil Engineering,Southeast University;  
Due to the existing of vertical slits,the initial stiffness and the ultimate strength of steel plate shear wall are greatly reduced.Thus,two kinds of unequal length slit forms called"butterfly"and "fusiform"were proposed.Elasto-plastic buckling behavior and hysteretic behavior of steel slit wall were analyzed numerically and the results were compared with the traditional steel plate shear wall with slits.The results show that after using two kinds of unequal height slit forms,the ultimate strength of the plate increase by over 15% and the initial stiffness increase by over 40% with little decrease of ductility.Compared with traditional steel plate shear wall with slits,slit wall of"butterfly"slit forms has better ductility.At the beginning of loading stage,the walls of"butterfly"slit form have much better energy dissipation capability and at the end of loading stage,this capability decreases gently.But"fusiform"slit form has little effect on ductility of steel plate.With the increasing of width of flexural links of"fusiform"slit form slit walls,the bearing capacity can easily reduce to 85% of its ultimate strength.The"fusiform"slit form slit walls is only applicable for the plate with smaller width of flexural links.
【Fund】: 国家“十二五”国家科技支撑计划资助项目(2012BAJ13B014)
【CateGory Index】: TU392.4
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