Abstract External bonding of Carbon Fiber Reinforced Plastic (CFRP) sheets has come to be regarded as a very effective method for the strengthening of reinforced concrete structures. The behavior of CFRP-strengthened RC structures is mainly governed by the interfacial behavior, which represents the stress transfer and relative slip between concrete and the CFRP sheet. In this paper, the effects of bonded length, width, and concrete strength on the interfacial behavior are experimentally verified and a bond-slip model is proposed based on the experimental results. From the pull test for CFRP-bonded concrete, it is found that the bond strength increases as the bond width increases and the effect of concrete strength is minor. The proposed bond-slip model has nonlinear ascending regions and exponential descending regions, facilitated by modifying the conventional bilinear bond-slip model. Finite element analysis results of interface element implemented with bond-slip model have shown good agreement with the experimental results performed in this study. It is found that the failure load and strain distribution predicted by finite element analysis with the proposed bond-slip are in good agreement with results of experiments.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Experimental study on interfacial behavior of CFRP-bonded concrete


    Contributors:
    Woo, Sang-Kyun (author) / Lee, Yun (author)

    Published in:

    Publication date :

    2010-05-01


    Size :

    9 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    CFRP CFRP bonded ladder for agricultural machinery

    KIM HYUN JIN / KIM JI CHAN / KIM DUCK YONG | European Patent Office | 2023

    Free access

    CFRP CFRP bonded ladder for agricultural machinery

    European Patent Office | 2024

    Free access

    Experimental Study on Flexural Behavior of Damaged Reinforced Concrete Beams Strengthened with CFRP

    Jia, B. / Xue, J. / Mo, J. et al. | British Library Conference Proceedings | 2014


    Bonded Inserts for CFRP Bolted Joints

    Camanho, P. P. / Matthews, F. L. / European Space Agency | British Library Conference Proceedings | 2001


    Prediction of Ultimate Torque of Reinforced Concrete Box Beam Bonded with CFRP Strips

    Ma, Shengqiang / Bunnori, N. Muhamad / Choong, Kok Keong | Springer Verlag | 2018