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    Size of FRP laminates to strengthen reinforced concrete sections in flexure.

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    Publication date
    2002-08
    Author
    Ashour, Ashraf F.
    Keyword
    Reinforced concrete beams, Fibre reinforced polymer (FRP) laminates, Concrete structures, Codes of practice & standards, Buildings structure & design, Stress analysis, Flexural strength,
    Rights
    © 2002 ICE. Reproduced in accordance with the publisher's self-archiving policy.
    Peer-Reviewed
    yes
    
    Metadata
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    Abstract
    This paper presents an analytical method for estimating the flexural strength of reinforced concrete beams strengthened with externally bonded fibre reinforced polymer (FRP) laminates. The method is developed from the strain compatibility and equilibrium of forces. Based on the size of external FRP laminates, several flexural failure modes may be identified, namely tensile rupture of FRP laminates and concrete crushing before or after yielding of internal steel reinforcement. Upper and lower limits to the size of FRP laminates used are suggested to maintain ductile behaviour of strengthened reinforced concrete sections. Comparisons between the flexural strength obtained from the current method and experiments show good agreement. Design equations for calculating the size of FRP laminates externally bonded to reinforced concrete sections to enhance their flexural strength are proposed.
    URI
    http://hdl.handle.net/10454/7668
    Version
    Accepted Manuscript
    Citation
    Ashour, A. F. (2002) Size of FRP laminates to strengthen reinforced concrete sections in flexure. Structures and Buildings Journal, Proceedings of the Institution of Civil Engineers, Vol. 152, No. 3, pp. 225-233.
    Link to publisher’s version
    http:dx.doi.org/10.1680/stbu.2002.152.3.225
    Type
    Article
    Collections
    Engineering and Informatics Publications

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