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Finite element analysis of efficiency of slot-cutting around RC frame joint for "strong column and weak beam"

WANG Xingguo1,2,SHAN Mingyue1,2,GE Nan1,2,SU Youpo1,2(1.College of Civil Engineering and Architecture,Hebei United University,Tangshan 063009,China;2.Earthquake Engineering Research Center of Hebei Province,Tangshan 063009,China)  
A numerical quasi-static and dynamic earthquake response model was established with ADINA software for beam-column interior joint in a reinforced concrete frame.The results for traditional joint specified in design code and that for the joint with slot around were compared.It is shown that for the joint with slot around,the yielding time of beam reinforced bar will shift to an earlier time,while the number of cracks on column becomes less.The time interval between the occurrence of plastic pivot on beam and on column becomes longer,which exhibits a failure type closer to the beam-pivot mode.
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