In order to study the pull-out performance of grouped stud connectors in steel-steel fiber re-inforced concrete(SFRC)composite beam,finite element software ABAQUS was used to numerically simulate completed experiments.The influence of the number of stud connectors,steel fiber content,and stud connectors spacing on the pull-out bearing capacity of grouped stud connectors was analyzed.The results show that when concrete failure occurs,the pull-out bearing capacity of grouped stud con-nectors gradually increases with the increase of the number of stud connectors,steel fiber content,and stud connectors spacing.Therefore,a pull-out bearing capacity calculation method of grouped stud connectors considering the influence of the number of stud connectors and steel fiber content within a certain range of stud connectors spacing is proposed.After verification,the calculation meth-od for the pull-out bearing capacity is in good agreement with the finite element results,which can provide reference for the design and construction of grouped stud connectors.
关键词
桥梁工程/群钉连接件/有限元分析/抗拔承载力
Key words
bridge engineering/grouped stud connectors/finite element analysis/pull-out bearing ca-pacity
维普
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