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    Flexural behavior of hybrid FRP/steel reinforced concrete beams

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    Publication date
    2015-10-01
    Author
    Kara, Ilker F.
    Ashour, Ashraf F.
    Köroğlu, Mehmet A.
    Keyword
    Concrete beams
    ; Fiber reinforced polymers
    ; Deflection
    ; Hybrid reinforcement
    ; Surface-mounted CFRP
    ; Polymer bars
    ; GHRP bars
    ; Steel
    Peer-Reviewed
    Yes
    
    Metadata
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    Abstract
    This paper presents a numerical method for estimating the curvature, deflection and moment capacity of hybrid FRP/steel reinforced concrete beams. A sectional analysis is first carried out to predict the moment-curvature relationship from which beam deflection and moment capacity are then calculated. Based on the amount of FRP bars, different failure modes were identified, namely tensile rupture of FRP bars and concrete crushing before or after yielding of steel reinforcement. Comparisons between theoretical and experimental results of tests conducted elsewhere show that the proposed numerical technique can accurately predict moment capacity, curvature and deflection of hybrid FRP/steel reinforced concrete beams. The numerical results also indicated that beam ductility and stiffness are improved when steel reinforcement is added to FRP reinforced concrete beams. (C) 2015 Elsevier Ltd. All rights reserved,
    URI
    http://hdl.handle.net/10454/9169
    Version
    No full-text available in the repository
    Citation
    Kara IF, Ashour AF and Koroglu MA (2015) Flexural behavior of hybrid FRP/steel reinforced concrete beams. Composite Structures. 129: 111-121.
    Link to publisher’s version
    http://dx.doi.org/10.1016/j.compstruct.2015.03.073
    Type
    Article
    Collections
    Engineering and Informatics Publications

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