Shear strengthening of reinforced concrete T-beams under cyclic loading with TRM or FRP jackets

E. Tzoura, Thanasis Triantafillou

    Research output: Contribution to journalArticle

    Abstract

    The paper presents a systematic investigation on the effectiveness of U-shaped textile-reinforced mortar (TRM) jackets as shear strengthening materials of reinforced concrete T-beams, by examining a number of parameters not studied before: cyclic loading; fixed support conditions; different types of textiles; different numbers of layers; anchors; the relative performance of TRM versus equivalent FRP systems; and different displacement amplitudes of the loading cycles. For beams without anchors it is concluded that the effectiveness of TRM increases non-proportionally with the number of layers and that, for the same total volume fraction of fibers in the jacket, one layer of textile is more effective than two. For beams with anchored TRM jackets it is concluded that the effectiveness of the strengthening system is quite high, as is the effectiveness of an anchored FRP system. The results are used to derive simple analytical models for the effective strain in anchored or non-anchored TRM jackets.

    Original languageEnglish (US)
    Pages (from-to)17-28
    Number of pages12
    JournalMaterials and Structures/Materiaux et Constructions
    Volume49
    Issue number1-2
    DOIs
    StatePublished - Jan 1 2016

    Fingerprint

    Mortar
    Reinforced concrete
    Textiles
    Anchors
    Analytical models
    Volume fraction
    Fibers

    Keywords

    • Anchors
    • Cyclic loading
    • Fiber-reinforced polymers (FRP)
    • Reinforced concrete
    • Shear strengthening
    • T-beams
    • Textile-reinforced mortar (TRM)

    ASJC Scopus subject areas

    • Civil and Structural Engineering
    • Building and Construction
    • Materials Science(all)
    • Mechanics of Materials

    Cite this

    Shear strengthening of reinforced concrete T-beams under cyclic loading with TRM or FRP jackets. / Tzoura, E.; Triantafillou, Thanasis.

    In: Materials and Structures/Materiaux et Constructions, Vol. 49, No. 1-2, 01.01.2016, p. 17-28.

    Research output: Contribution to journalArticle

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