One aspect of long-term behavior of the bond of fiber-reinforced polymer (FRP) and concrete bond has received relatively little attention in the literature: bond stress redistribution and remaining (residual) pulloff strength after sustained loading. The relevance of this missing information is directly related to the expected reliability of FRP-strengthened structures when subjected to sustained loading and elevated temperatures over their life span. The objective of this investigation was to evaluate the effects of sustained loading and temperature on the time-dependent distribution of strain in carbon FRP bonded to concrete and on the pulloff strength of the carbon FRP at room temperature after the sustained loading period. Pulloff specimens were used to evaluate stress distributions during sustained loading tests at loads below ultimate and during tests to ultimate after sustained loading. Under sustained loading, the presence of temperature and a bond-line flaw increased the bond stress transfer length between the FRP and the concrete substrate. However, although the presence of higher temperatures resulted in increased pulloff strength, this beneficial effect was eliminated in the presence of sustained loading.


    Zugriff

    Download

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Sustained Loading and Temperature Response of Fiber-Reinforced Polymer–Concrete Bond


    Weitere Titelangaben:

    Transportation Research Record


    Beteiligte:
    Gullapalli, Anusha (Autor:in) / Lee, Jae Ha (Autor:in) / Lopez, Maria M. (Autor:in) / Bakis, Charles E. (Autor:in)


    Erscheinungsdatum :

    2009-01-01




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Time-Dependent Behavior of Synthetic Fiber–Reinforced Concrete Pipes under Long-Term Sustained Loading

    Park, Yeonho / Abolmaali, Ali / Attiogbe, Emmanuel et al. | Transportation Research Record | 2014



    Improvement in Fiber-Reinforced Polymer–Concrete Bond by External Pressure

    Aguilar, Julio / Winters, Danny / Sen, Rajan et al. | Transportation Research Record | 2009


    Fiber Effect on Interfacial Bond Between Concrete and Fiber-Reinforced Mortar

    Kim, Min Ook / Bordelon, Amanda | Transportation Research Record | 2016