Deformation of continuous reinforced concrete beams during patch repair

J. Cairns, Eoin Coakley

    Research output: Contribution to journalArticle

    2 Citations (Scopus)
    25 Downloads (Pure)

    Abstract

    This paper describes an experimental and numerical investigation examining the effect of reinforcement exposure during the patch repair process on the behaviour of continuous beams. Particular attention is paid to moment transfer and change in strain patterns during concrete breakout. The test programme embraced a range of parameters including the length and position of breakout and a variety of reinforcement arrangements. Moment transfer during concrete breakout was monitored to assess whether breakout at one location would cause overstressing in other parts of the structure. Results from tests and numerical analysis show increases in section deformations away from the breakout were small when compared to those within the breakout length. It is surmised that there is little danger of overstraining in locations away from the breakout zone while breakout does not extend past a point of contraflexure. Publisher statement: Permission is granted by ICE Publishing to print one copy for personal use. Any other use of these PDF files is subject to reprint fees. The homepage for the journal archive can be found here: http://www.icevirtuallibrary.com/content/serial/stco;jsessionid=3j0icm06lg0p6.x-telford-live-01
    Original languageEnglish
    Pages (from-to)149-160
    JournalStructural Concrete
    Volume11
    Issue number3
    DOIs
    Publication statusPublished - Sep 2010

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    Reinforced concrete
    Reinforcement
    Repair
    Concretes
    Numerical analysis

    Bibliographical note

    Permission is granted by ICE Publishing to print one copy for personal use. Any other use of these PDF files is subject to reprint fees. The homepage for the journal archive can be found here: http://www.icevirtuallibrary.com/content/serial/stco;jsessionid=3j0icm06lg0p6.x-telford-live-01

    Keywords

    • concrete breakout
    • reinforcement exposure
    • moment transfer

    Cite this

    Deformation of continuous reinforced concrete beams during patch repair. / Cairns, J.; Coakley, Eoin.

    In: Structural Concrete, Vol. 11, No. 3, 09.2010, p. 149-160.

    Research output: Contribution to journalArticle

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    abstract = "This paper describes an experimental and numerical investigation examining the effect of reinforcement exposure during the patch repair process on the behaviour of continuous beams. Particular attention is paid to moment transfer and change in strain patterns during concrete breakout. The test programme embraced a range of parameters including the length and position of breakout and a variety of reinforcement arrangements. Moment transfer during concrete breakout was monitored to assess whether breakout at one location would cause overstressing in other parts of the structure. Results from tests and numerical analysis show increases in section deformations away from the breakout were small when compared to those within the breakout length. It is surmised that there is little danger of overstraining in locations away from the breakout zone while breakout does not extend past a point of contraflexure. Publisher statement: Permission is granted by ICE Publishing to print one copy for personal use. Any other use of these PDF files is subject to reprint fees. The homepage for the journal archive can be found here: http://www.icevirtuallibrary.com/content/serial/stco;jsessionid=3j0icm06lg0p6.x-telford-live-01",
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