Behaviour of bolted endplate composite joints to square and circular CFST columns

Huu Tai Thai, Brian Uy, Yamesri, Farhad Aslani

    Research output: Contribution to journalArticlepeer-review

    42 Citations (Scopus)


    This paper presents the results of an experimental study on the structural performance of blind bolted endplate composite connections to concrete filled steel tubular (CFST) columns under static loading. Four full-scale sub-assemblages of cruciform composite joints representing the internal region of a composite frame were tested. The parameters varied were the shape of column sections and the type of endplates. The performance of the joints in terms of rotational stiffness, moment resistance and rotation capacity was evaluated to explore the effects of the shape of column sections and endplate types. An analytical model was also developed to predict the moment-rotation behaviour of composite joints. The experimental results indicated that both moment resistance and initial stiffness of the tested connections are considerably enhanced if the flush endplate and square column were replaced by the extended endplate and circular column, respectively.

    Original languageEnglish
    Pages (from-to)68-82
    Number of pages15
    JournalJournal of Constructional Steel Research
    Publication statusPublished - 1 Apr 2017


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