Damage detection of reinforced concrete elements retrofitted with FRP by using a wireless measurement system

Efi A. Tzoura, Eleni G. Choutopoulou, Thanasis Triantafillou, Costas P. Providakis, Aristomenis V. Tsantilis, Corina G. Papanicolaou, Dimitris L. Karabalis

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

    Abstract

    In this study lead zirconate titanate (PZT) transducers are employed for damage detection of six reinforced concrete elements (four beams and two columns) retrofitted with carbon fiber reinforced polymer (CFRP) jackets. The PZT transducers were placed externally on the CFRP jackets in an effort to detect the damage underneath the jackets. Measurements of the voltage across the PZT transducers were obtained at various strain values during the experimental procedure. The transducers were placed in positions where the failure of the CFRP jackets was expected to be more intense. The variation of the voltage as the strain increases is the indication of damage. The damage index employed for the quantification of the damage is the root-mean-square-deviation (RMSD) index. The experimental results lead to the conclusion that the measurement system employed in combination with the PZT transducers provide safe evidence that damage detection can be achieved at an early stage.

    Original languageEnglish (US)
    Title of host publicationNDT in Progress 2015 - 8th International Workshop of NDT Experts, Proceedings
    EditorsPavel Mazal
    PublisherBrno University of Technology
    Pages171-176
    Number of pages6
    ISBN (Electronic)9788021452626
    StatePublished - Jan 1 2015
    Event8th International Workshop NDT in Progress 2015 - Prague, Czech Republic
    Duration: Oct 12 2015Oct 14 2015

    Other

    Other8th International Workshop NDT in Progress 2015
    CountryCzech Republic
    CityPrague
    Period10/12/1510/14/15

    Fingerprint

    reinforced concrete
    transducer
    jackets
    transducers
    damage
    carbon fibers
    polymer
    polymers
    titanate
    electric potential
    detection
    indication
    deviation

    Keywords

    • Damage detection
    • FRP jackets
    • PZT transducers
    • Reinforced concrete
    • Wireless system

    ASJC Scopus subject areas

    • Geophysics

    Cite this

    Tzoura, E. A., Choutopoulou, E. G., Triantafillou, T., Providakis, C. P., Tsantilis, A. V., Papanicolaou, C. G., & Karabalis, D. L. (2015). Damage detection of reinforced concrete elements retrofitted with FRP by using a wireless measurement system. In P. Mazal (Ed.), NDT in Progress 2015 - 8th International Workshop of NDT Experts, Proceedings (pp. 171-176). Brno University of Technology.

    Damage detection of reinforced concrete elements retrofitted with FRP by using a wireless measurement system. / Tzoura, Efi A.; Choutopoulou, Eleni G.; Triantafillou, Thanasis; Providakis, Costas P.; Tsantilis, Aristomenis V.; Papanicolaou, Corina G.; Karabalis, Dimitris L.

    NDT in Progress 2015 - 8th International Workshop of NDT Experts, Proceedings. ed. / Pavel Mazal. Brno University of Technology, 2015. p. 171-176.

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

    Tzoura, EA, Choutopoulou, EG, Triantafillou, T, Providakis, CP, Tsantilis, AV, Papanicolaou, CG & Karabalis, DL 2015, Damage detection of reinforced concrete elements retrofitted with FRP by using a wireless measurement system. in P Mazal (ed.), NDT in Progress 2015 - 8th International Workshop of NDT Experts, Proceedings. Brno University of Technology, pp. 171-176, 8th International Workshop NDT in Progress 2015, Prague, Czech Republic, 10/12/15.
    Tzoura EA, Choutopoulou EG, Triantafillou T, Providakis CP, Tsantilis AV, Papanicolaou CG et al. Damage detection of reinforced concrete elements retrofitted with FRP by using a wireless measurement system. In Mazal P, editor, NDT in Progress 2015 - 8th International Workshop of NDT Experts, Proceedings. Brno University of Technology. 2015. p. 171-176
    Tzoura, Efi A. ; Choutopoulou, Eleni G. ; Triantafillou, Thanasis ; Providakis, Costas P. ; Tsantilis, Aristomenis V. ; Papanicolaou, Corina G. ; Karabalis, Dimitris L. / Damage detection of reinforced concrete elements retrofitted with FRP by using a wireless measurement system. NDT in Progress 2015 - 8th International Workshop of NDT Experts, Proceedings. editor / Pavel Mazal. Brno University of Technology, 2015. pp. 171-176
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    abstract = "In this study lead zirconate titanate (PZT) transducers are employed for damage detection of six reinforced concrete elements (four beams and two columns) retrofitted with carbon fiber reinforced polymer (CFRP) jackets. The PZT transducers were placed externally on the CFRP jackets in an effort to detect the damage underneath the jackets. Measurements of the voltage across the PZT transducers were obtained at various strain values during the experimental procedure. The transducers were placed in positions where the failure of the CFRP jackets was expected to be more intense. The variation of the voltage as the strain increases is the indication of damage. The damage index employed for the quantification of the damage is the root-mean-square-deviation (RMSD) index. The experimental results lead to the conclusion that the measurement system employed in combination with the PZT transducers provide safe evidence that damage detection can be achieved at an early stage.",
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    AU - Providakis, Costas P.

    AU - Tsantilis, Aristomenis V.

    AU - Papanicolaou, Corina G.

    AU - Karabalis, Dimitris L.

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