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    Concrete-Filled Square and Rectangular FRP Tubes under Axial Compression

    Source: Journal of Composites for Construction:;2008:;Volume ( 012 ):;issue: 004
    Author:
    Togay Ozbakkaloglu
    ,
    Deric J. Oehlers
    DOI: 10.1061/(ASCE)1090-0268(2008)12:4(469)
    Publisher: American Society of Civil Engineers
    Abstract: This paper presents results of an experimental study on the behavior of square and rectangular concrete-filled fiber reinforced polymer (FRP) tubes (CFFTs) under concentric compression. FRP tubes were designed as column confinement reinforcement and were manufactured using unidirectional carbon fiber sheets with fibers oriented in the hoop direction. The effects of the thickness and corner radius of the tube, sectional aspect ratio, and concrete strength on the axial behavior of CFFTs were investigated experimentally. Test results indicate that FRP confinement leads to substantial improvement in the ductility of both square and rectangular columns. Confinement provided by the FRP tube may also improve the axial load-carrying capacity of the square and rectangular columns if the confinement effectiveness of the FRP tube is sufficiently high. The results also indicate that the confinement effectiveness of FRP tubes is higher in square columns than in rectangular columns, and in both sections the effectiveness of confinement increases with the corner radius. Furthermore, for a given confinement level, improvement observed on the axial behavior of concrete due to confinement decreases with increasing concrete strength.
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      Concrete-Filled Square and Rectangular FRP Tubes under Axial Compression

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/54546
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    contributor authorTogay Ozbakkaloglu
    contributor authorDeric J. Oehlers
    date accessioned2017-05-08T21:31:07Z
    date available2017-05-08T21:31:07Z
    date copyrightAugust 2008
    date issued2008
    identifier other%28asce%291090-0268%282008%2912%3A4%28469%29.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/54546
    description abstractThis paper presents results of an experimental study on the behavior of square and rectangular concrete-filled fiber reinforced polymer (FRP) tubes (CFFTs) under concentric compression. FRP tubes were designed as column confinement reinforcement and were manufactured using unidirectional carbon fiber sheets with fibers oriented in the hoop direction. The effects of the thickness and corner radius of the tube, sectional aspect ratio, and concrete strength on the axial behavior of CFFTs were investigated experimentally. Test results indicate that FRP confinement leads to substantial improvement in the ductility of both square and rectangular columns. Confinement provided by the FRP tube may also improve the axial load-carrying capacity of the square and rectangular columns if the confinement effectiveness of the FRP tube is sufficiently high. The results also indicate that the confinement effectiveness of FRP tubes is higher in square columns than in rectangular columns, and in both sections the effectiveness of confinement increases with the corner radius. Furthermore, for a given confinement level, improvement observed on the axial behavior of concrete due to confinement decreases with increasing concrete strength.
    publisherAmerican Society of Civil Engineers
    titleConcrete-Filled Square and Rectangular FRP Tubes under Axial Compression
    typeJournal Paper
    journal volume12
    journal issue4
    journal titleJournal of Composites for Construction
    identifier doi10.1061/(ASCE)1090-0268(2008)12:4(469)
    treeJournal of Composites for Construction:;2008:;Volume ( 012 ):;issue: 004
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
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