FRP confinement of high-aspect ratio concrete columns

C. S. Kolyvas, Thanasis Triantafillou, A. I. Bernakos

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    An important limitation in the majority of the globally available guidelines, with regard to concrete strengthening, is the confinement of vertical members of high-aspect ratio cross-sections by means of externally applied FRP. For that matter, the paper investigates FRP confinement of wall-like reinforced concrete columns, by examining a number of parameters, namely the effectiveness of different types of carbon FRP anchors, the role of different cross-section aspect-ratios (3 and 4), the number of externally applied FRP layers, local strengthening at the corners and the reduction of aspect-ratio by cross-section enlargement. It is concluded that properly dimensioned anchoring system, nearly doubles the confining effectiveness of FRP. Moreover, the use of additional FRP layers near the edges of the cross-section increases the confining effectiveness of the jacket by approximately 50%, and shape enlargement of the cross section with mortar is practically as effective as the use of FRP anchors.

    Original languageEnglish (US)
    Title of host publicationConcrete Solutions - Proceedings of Concrete Solutions, 6th International Conference on Concrete Repair, 2016
    EditorsKosmas Sideris, Ioanna Papayianni, Michael G. Grantham
    PublisherCRC Press/Balkema
    Pages525-530
    Number of pages6
    ISBN (Print)9781138030084
    StatePublished - Jan 1 2016
    Event6th International Conference on Concrete Repair, 2016 - Thessaloniki, Greece
    Duration: Jun 20 2016Jun 23 2016

    Other

    Other6th International Conference on Concrete Repair, 2016
    CountryGreece
    CityThessaloniki
    Period6/20/166/23/16

    Fingerprint

    Aspect ratio
    Concretes
    Anchors
    Strengthening (metal)
    Mortar
    Reinforced concrete
    Carbon

    Keywords

    • Concrete
    • Confinement
    • Fibre-reinforced polymers
    • FRP anchors
    • High-aspect ratio columns
    • Shape enlargement

    ASJC Scopus subject areas

    • Civil and Structural Engineering
    • Building and Construction

    Cite this

    Kolyvas, C. S., Triantafillou, T., & Bernakos, A. I. (2016). FRP confinement of high-aspect ratio concrete columns. In K. Sideris, I. Papayianni, & M. G. Grantham (Eds.), Concrete Solutions - Proceedings of Concrete Solutions, 6th International Conference on Concrete Repair, 2016 (pp. 525-530). CRC Press/Balkema.

    FRP confinement of high-aspect ratio concrete columns. / Kolyvas, C. S.; Triantafillou, Thanasis; Bernakos, A. I.

    Concrete Solutions - Proceedings of Concrete Solutions, 6th International Conference on Concrete Repair, 2016. ed. / Kosmas Sideris; Ioanna Papayianni; Michael G. Grantham. CRC Press/Balkema, 2016. p. 525-530.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Kolyvas, CS, Triantafillou, T & Bernakos, AI 2016, FRP confinement of high-aspect ratio concrete columns. in K Sideris, I Papayianni & MG Grantham (eds), Concrete Solutions - Proceedings of Concrete Solutions, 6th International Conference on Concrete Repair, 2016. CRC Press/Balkema, pp. 525-530, 6th International Conference on Concrete Repair, 2016, Thessaloniki, Greece, 6/20/16.
    Kolyvas CS, Triantafillou T, Bernakos AI. FRP confinement of high-aspect ratio concrete columns. In Sideris K, Papayianni I, Grantham MG, editors, Concrete Solutions - Proceedings of Concrete Solutions, 6th International Conference on Concrete Repair, 2016. CRC Press/Balkema. 2016. p. 525-530
    Kolyvas, C. S. ; Triantafillou, Thanasis ; Bernakos, A. I. / FRP confinement of high-aspect ratio concrete columns. Concrete Solutions - Proceedings of Concrete Solutions, 6th International Conference on Concrete Repair, 2016. editor / Kosmas Sideris ; Ioanna Papayianni ; Michael G. Grantham. CRC Press/Balkema, 2016. pp. 525-530
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