In order to investigate the static and cyclic tension behavior of post-installed rebar along with cement-based adhesive that is adopted after exposure to high temperature, a three-phase experimental program has been carried out and two typical embedment depths, 10d and 15d are designed. The surfaces of specimens are firstly heated up to 800°C, and then the residual strength at different temperatures of cement-based adhesive has been studied by consequent static pull-out tests. Experimental results show that the tensile strength has a significant reduction at elevated temperatures compared with that of room temperature. The cement-based adhesive has almost lost its full bond strength when the temperature exceeds 350°C. Finally, the bond performance of cement-based adhesive under cyclic loading has been further tested and analyzed. It is found that both 10d and 15d specimens have failed abruptly with rebar pull-out. The employment of long embedment depth has been verified to be an effective method to improve the bond performance of cement-based adhesive under static and cyclic loading. Static numerical investigation indicates that the bond stress distribution is not uniform along the embedment length of post-installed rebar at different temperatures of cement-based adhesive. The temperature-dependent tensile strength prediction has also been obtained based on the experimental data.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Static and Cyclic Tension Behavior of Post-Installed Rebar after Exposure to High Temperature


    Additional title:

    KSCE J Civ Eng


    Contributors:
    Xie, Qun (author) / Xue, Song (author) / Zhao, Yongqiang (author)

    Published in:

    Publication date :

    2020-06-01


    Size :

    12 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    FASTENER WITH LUBRICANTS, INSTALLED WITH A TENSION

    BURZH LORAN / STEFAN ZHOAN / VANDAEL KRISTOF | European Patent Office | 2018

    Free access

    ROBOT FOR TYING REBAR ON A REBAR GRID

    GEORGE EOHAN | European Patent Office | 2022

    Free access

    Firmly-installed household automobile static electricity eliminator

    ZHOU DAN | European Patent Office | 2021

    Free access

    Rebar transfer device

    SONG SUBOK | European Patent Office | 2024

    Free access

    Tightening Torque Influence on Pullout Behavior of Post-installed Expansion Anchors

    Delhomme, Fabien / Pallud, Bertrand / Rouane, Nicolas | Online Contents | 2018