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    Experimental Study on Demountable Shear Connectors in Composite Slabs with Profiled Decking

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    Publication date
    2016
    Author
    Rehman, Naveed
    Lam, Dennis
    Dai, Xianghe
    Ashour, Ashraf F.
    Keyword
    Demountable shear connectors, Push-off tests, Metal deck flooring, Shear capacity, Ductility, Stiffness
    Rights
    © 2016 Elsevier. Reproduced in accordance with the publisher's self-archiving policy. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
    Peer-Reviewed
    yes
    
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    Abstract
    This paper presents an experimental study on shear strength, stiffness and ductility of demountable shear connectors in metal decking composite slabs through push-off tests. Twelve full-scale push-off tests were carried out using different concrete strength, number of connectors and different connector diameter. The experimental results showed that the demountable shear connectors in metal decking composite slabs have similar shear capacity and behaviour as welded shear studs and fulfilled the minimum ductility requirement of 6mm required by Eurocode 4. The shear capacity was compared against the prediction methods used for the welded shear connections given in Eurocode 4, AISC 360-10, ACI 318-08 and method used for bolted connection in Eurocode 3. It was found that the AISC 360-10 method overestimated the shear capacity while the ACI 318-08 method underestimated the shear capacity of specimens with single shear connector per trough. The Eurocodes method was found to provide a safe prediction for specimens with single and pair demountable connectors per trough. In addition, prediction methods given in both AISC 360-10 and ACI 318-08 for welded shear studs overestimated the shear capacity of specimens with 22 mm diameter demountable connectors that failed in concrete crushing.
    URI
    http://hdl.handle.net/10454/7933
    Version
    Accepted Manuscript
    Citation
    Rehman N, Lam D, Dai X and Ashour AF (2016) Experimental Study on Demountable Shear Connectors in Composite Slabs with Profiled Decking. Journal of Constructional Steel Research. Accepted for publication, 16th Mar 2016.
    Link to publisher’s version
    https://doi.org/10.1016/j.jcsr.2016.03.021
    Type
    Article
    Collections
    Engineering and Informatics Publications

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