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    Cyclic Behavior of RC Beams Strengthened with Carbon Fiber Sheets Bonded by Inorganic Matrix

    Source: Journal of Materials in Civil Engineering:;2006:;Volume ( 018 ):;issue: 001
    Author:
    Houssam Toutanji
    ,
    Liangying Zhao
    ,
    Yong Deng
    ,
    Yue Zhang
    ,
    P. Balaguru
    DOI: 10.1061/(ASCE)0899-1561(2006)18:1(28)
    Publisher: American Society of Civil Engineers
    Abstract: The objective of this paper is to study the fatigue performance of concrete beams strengthened with carbon fiber sheets bonded by an inorganic matrix. Large size reinforced concrete (RC) beams were strengthened with three layers of carbon fiber sheets and tested under fatigue loading. The relationship between fatigue strength, crack width, and number of cycles was studied and analyzed. Results showed that both load capacity and number of cycles of the RC beams were significantly increased with carbon fiber sheets. The fatigue strength increased by as much as 55% as compared with that of the control beams. Fatigue failure of the RC beams strengthened with carbon fiber sheets bonded with an inorganic matrix started with steel rupturing followed by fiber rupture. It was observed that the fatigue cracks developed during the first few cycles. With increasing number of cycles, the crack width and crack depth increased during the first half million cycles of loading, and thereafter the crack width and depth tended to stabilize.
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      Cyclic Behavior of RC Beams Strengthened with Carbon Fiber Sheets Bonded by Inorganic Matrix

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    http://yetl.yabesh.ir/yetl1/handle/yetl/46102
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    contributor authorHoussam Toutanji
    contributor authorLiangying Zhao
    contributor authorYong Deng
    contributor authorYue Zhang
    contributor authorP. Balaguru
    date accessioned2017-05-08T21:17:57Z
    date available2017-05-08T21:17:57Z
    date copyrightFebruary 2006
    date issued2006
    identifier other%28asce%290899-1561%282006%2918%3A1%2828%29.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/46102
    description abstractThe objective of this paper is to study the fatigue performance of concrete beams strengthened with carbon fiber sheets bonded by an inorganic matrix. Large size reinforced concrete (RC) beams were strengthened with three layers of carbon fiber sheets and tested under fatigue loading. The relationship between fatigue strength, crack width, and number of cycles was studied and analyzed. Results showed that both load capacity and number of cycles of the RC beams were significantly increased with carbon fiber sheets. The fatigue strength increased by as much as 55% as compared with that of the control beams. Fatigue failure of the RC beams strengthened with carbon fiber sheets bonded with an inorganic matrix started with steel rupturing followed by fiber rupture. It was observed that the fatigue cracks developed during the first few cycles. With increasing number of cycles, the crack width and crack depth increased during the first half million cycles of loading, and thereafter the crack width and depth tended to stabilize.
    publisherAmerican Society of Civil Engineers
    titleCyclic Behavior of RC Beams Strengthened with Carbon Fiber Sheets Bonded by Inorganic Matrix
    typeJournal Paper
    journal volume18
    journal issue1
    journal titleJournal of Materials in Civil Engineering
    identifier doi10.1061/(ASCE)0899-1561(2006)18:1(28)
    treeJournal of Materials in Civil Engineering:;2006:;Volume ( 018 ):;issue: 001
    contenttypeFulltext
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