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    Punching Shear Behavior of Fiber Reinforced Polymers Reinforced Concrete Flat Slabs: Experimental Study

    Source: Journal of Composites for Construction:;2003:;Volume ( 007 ):;issue: 003
    Author:
    Abdel Wahab El-Ghandour
    ,
    Kypros Pilakoutas
    ,
    Peter Waldron
    DOI: 10.1061/(ASCE)1090-0268(2003)7:3(258)
    Publisher: American Society of Civil Engineers
    Abstract: This paper presents the results of a two-phase experimental program investigating the punching shear behavior of fiber reinforced polymer reinforced concrete (FRP RC) flat slabs with and without carbon fiber reinforced polymer (CFRP) shear reinforcement. In the first phase, problems of bond slip and crack localization were identified. Decreasing the flexural bar spacing in the second phase successfully eliminated those problems and resulted in punching shear failure of the slabs. However, CFRP shear reinforcement was found to be inefficient in enhancing significantly the slab capacity due to its brittleness. A model, which accurately predicts the punching shear capacity of FRP RC slabs without shear reinforcement, is proposed and verified. For slabs with FRP shear reinforcement, it is proposed that the concrete shear resistance is reduced, but a strain limit of 0.0045 is recommended as maximum strain for the reinforcement. Comparisons of the slab capacities with ACI 318-95, ACI 440-98, and BS 8110 punching shear code equations, modified to incorporate FRP reinforcement, show either overestimated or conservative results.
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      Punching Shear Behavior of Fiber Reinforced Polymers Reinforced Concrete Flat Slabs: Experimental Study

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/54193
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    • Journal of Composites for Construction

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    contributor authorAbdel Wahab El-Ghandour
    contributor authorKypros Pilakoutas
    contributor authorPeter Waldron
    date accessioned2017-05-08T21:30:34Z
    date available2017-05-08T21:30:34Z
    date copyrightAugust 2003
    date issued2003
    identifier other%28asce%291090-0268%282003%297%3A3%28258%29.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/54193
    description abstractThis paper presents the results of a two-phase experimental program investigating the punching shear behavior of fiber reinforced polymer reinforced concrete (FRP RC) flat slabs with and without carbon fiber reinforced polymer (CFRP) shear reinforcement. In the first phase, problems of bond slip and crack localization were identified. Decreasing the flexural bar spacing in the second phase successfully eliminated those problems and resulted in punching shear failure of the slabs. However, CFRP shear reinforcement was found to be inefficient in enhancing significantly the slab capacity due to its brittleness. A model, which accurately predicts the punching shear capacity of FRP RC slabs without shear reinforcement, is proposed and verified. For slabs with FRP shear reinforcement, it is proposed that the concrete shear resistance is reduced, but a strain limit of 0.0045 is recommended as maximum strain for the reinforcement. Comparisons of the slab capacities with ACI 318-95, ACI 440-98, and BS 8110 punching shear code equations, modified to incorporate FRP reinforcement, show either overestimated or conservative results.
    publisherAmerican Society of Civil Engineers
    titlePunching Shear Behavior of Fiber Reinforced Polymers Reinforced Concrete Flat Slabs: Experimental Study
    typeJournal Paper
    journal volume7
    journal issue3
    journal titleJournal of Composites for Construction
    identifier doi10.1061/(ASCE)1090-0268(2003)7:3(258)
    treeJournal of Composites for Construction:;2003:;Volume ( 007 ):;issue: 003
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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