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    Capacities of headed stud shear connectors in composite steel beams with precast hollowcore slabs.

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    Publication date
    2007
    Author
    Lam, Dennis
    Keyword
    Precast
    Headed stud
    Connectors
    Composite steel beams
    Shear connection
    Push test
    Hollowcore slabs
    Peer-Reviewed
    yes
    
    Metadata
    Show full item record
    Abstract
    In steel¿concrete composite beams, the longitudinal shear force is transferred across the steel flange/concrete slab interface by the mechanical action of the shear connectors. The ability of the shear connectors to transfer these longitudinal shear forces depends on their strength, and also on the resistance of the concrete slab against longitudinal cracking induced by the high concentration of shear force. Most of the research in composite construction has concentrated on the more traditional reinforced concrete and metal deck construction, and little information is given on shear capacity of the headed studs in precast hollowcore slabs. In this paper, a standard push test procedure for use with composite beams with precast hollowcore slabs is proposed. Seven exploratory push tests were carried out on headed studs in solid RC slabs to validate the testing procedures, and the results showed that the new test is compatible with the results specified in the codes of practice for solid RC slabs. Once a standard procedure is established, 72 full-scale push tests on headed studs in hollowcore slabs were performed to determine the capacities of the headed stud connectors in precast hollowcore slabs and the results of the experimental study are analysed and findings on the effect of all the parameters on connectors¿ strength and ductility are presented. Newly proposed design equations for calculating the shear connectors¿ capacity for this form of composite construction are also be given.
    URI
    http://hdl.handle.net/10454/5795
    Version
    published version paper
    Citation
    Lam, D. (2007). Capacities of Headed Stud Shear Connectors in Composite Steel Beams with Precast Hollowcore Slabs. Journal of Constructional Steel Research. Vol. 63, pp. 1160 ¿ 1174.
    Link to publisher’s version
    http://dx.doi.org/10.1016/j.jcsr.2006.11.012
    Type
    Article
    Collections
    Engineering and Informatics Publications

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