Experimental investigation of FRP-strengthened RC beam-column joints

Costas P. Antonopoulos, Thanasis Triantafillou

    Research output: Contribution to journalArticle

    Abstract

    The results of a comprehensive experimental program, aimed at providing a fundamental understanding of the behavior of shear-critical exterior reinforced concrete (RC) joints strengthened with fiber reinforced polymers (FRP) under simulated seismic load, are presented in this study. The role of various parameters on the effectiveness of FRP is examined through 2/3-scale testing of 18 exterior RC joints. Conclusions are drawn on the basis of certain load versus imposed displacement response characteristics, comprising the strength (maximum lateral load), the stiffness, and the cumulative energy dissipation capacity. The results demonstrate the important role of mechanical anchorages in limiting premature debonding, and they provide important information on the role of various parameters, including: area fraction of FRP; distribution of FRP between the beam and the column; column axial load; internal joint (steel) reinforcement; initial damage; carbon versus glass fibers; sheets versus strips; and effect of transverse beams.

    Original languageEnglish (US)
    Pages (from-to)39-49
    Number of pages11
    JournalJournal of Composites for Construction
    Volume7
    Issue number1
    DOIs
    StatePublished - Feb 1 2003

    Fingerprint

    Reinforced concrete
    Polymers
    Fibers
    Steel
    Axial loads
    Debonding
    Glass fibers
    Carbon fibers
    Loads (forces)
    Energy dissipation
    Reinforcement
    Stiffness
    Testing

    Keywords

    • Beam columns
    • Concrete, reinforced
    • Fiber reinforced polymers
    • Joints

    ASJC Scopus subject areas

    • Civil and Structural Engineering
    • Ceramics and Composites
    • Mechanics of Materials
    • Computational Mechanics

    Cite this

    Experimental investigation of FRP-strengthened RC beam-column joints. / Antonopoulos, Costas P.; Triantafillou, Thanasis.

    In: Journal of Composites for Construction, Vol. 7, No. 1, 01.02.2003, p. 39-49.

    Research output: Contribution to journalArticle

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