Reducing the seismic damage of reinforced concrete frames using FRP confinement

Vui Van Cao, Hamid Reza Ronagh

    Research output: Contribution to journalArticlepeer-review

    22 Citations (Scopus)

    Abstract

    The objective of this study is to investigate the effect of FRP confinement on reducing the damage of an 8-storey poorly-confined reinforced concrete frame subjected to different seismic intensities. Inelastic time history and damage analyses are performed for the poorly-confined frame and its FRP retrofit. Analyses are also performed for a geometrically similar frame designed with the more restrictive requirements of an intermediate frame for comparison with the poorly-confined and retrofitted frames. The results confirm the positive effect of FRP confinement significantly reducing the damage of the poorlyconfined frame down one or two damage levels. The comparison reveals that the poorly-confined frame has been essentially upgraded to the intermediate frame. The results are useful for structural designers working in retrofitting area. The limitation of this study is also presented.
    Original languageEnglish
    Pages (from-to)403-415
    Number of pages13
    JournalComposite Structures
    Volume118
    Issue number1
    DOIs
    Publication statusPublished - 2014

    Keywords

    • concrete construction
    • earthquake engineering
    • strains and stresses

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