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    Bond Behavior of Deformed Bars in Self-Compacting Lightweight Aggregate Concrete Subjected to Lateral Tensions

    Source: Journal of Materials in Civil Engineering:;2019:;Volume ( 031 ):;issue: 009
    Author:
    Tao Jiang
    ,
    Zhimin Wu
    ,
    Hailong Ye
    ,
    Xiaodong Fei
    ,
    Rena C. Yu
    DOI: 10.1061/(ASCE)MT.1943-5533.0002813
    Publisher: American Society of Civil Engineers
    Abstract: The bond performance of reinforcing bars to concrete, an indispensable factor in designing reinforced concrete structures, is deeply influenced by the stress states of surrounding concrete. In recent decades, although self-compacting lightweight aggregate concrete (SCLC) has gained popularity in architectural engineering, the bond stress-slip relationship of deformed bars in SCLC under lateral tension remains unknown. In this study, 179 pullout tests were performed to examine the local bond stress-slip behavior of deformed bars in SCLC. In addition, the effects of various parameters on the ultimate bond strength and the slip at the ultimate bond stress, as well as the residual bond strength, were analyzed quantitatively. The results showed that both the bond strength and slip at the ultimate stress decrease with the increase of lateral tension regardless of whether it is in pull-out or splitting failure mode. In addition, an empirical formula was proposed that gives a reasonable prediction of the measured bond stress-slip curve of the SCLC.
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      Bond Behavior of Deformed Bars in Self-Compacting Lightweight Aggregate Concrete Subjected to Lateral Tensions

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4259449
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    contributor authorTao Jiang
    contributor authorZhimin Wu
    contributor authorHailong Ye
    contributor authorXiaodong Fei
    contributor authorRena C. Yu
    date accessioned2019-09-18T10:37:06Z
    date available2019-09-18T10:37:06Z
    date issued2019
    identifier other%28ASCE%29MT.1943-5533.0002813.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4259449
    description abstractThe bond performance of reinforcing bars to concrete, an indispensable factor in designing reinforced concrete structures, is deeply influenced by the stress states of surrounding concrete. In recent decades, although self-compacting lightweight aggregate concrete (SCLC) has gained popularity in architectural engineering, the bond stress-slip relationship of deformed bars in SCLC under lateral tension remains unknown. In this study, 179 pullout tests were performed to examine the local bond stress-slip behavior of deformed bars in SCLC. In addition, the effects of various parameters on the ultimate bond strength and the slip at the ultimate bond stress, as well as the residual bond strength, were analyzed quantitatively. The results showed that both the bond strength and slip at the ultimate stress decrease with the increase of lateral tension regardless of whether it is in pull-out or splitting failure mode. In addition, an empirical formula was proposed that gives a reasonable prediction of the measured bond stress-slip curve of the SCLC.
    publisherAmerican Society of Civil Engineers
    titleBond Behavior of Deformed Bars in Self-Compacting Lightweight Aggregate Concrete Subjected to Lateral Tensions
    typeJournal Paper
    journal volume31
    journal issue9
    journal titleJournal of Materials in Civil Engineering
    identifier doi10.1061/(ASCE)MT.1943-5533.0002813
    page04019176
    treeJournal of Materials in Civil Engineering:;2019:;Volume ( 031 ):;issue: 009
    contenttypeFulltext
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