YaBeSH Engineering and Technology Library

    • Journals
    • PaperQuest
    • YSE Standards
    • YaBeSH
    • Login
    View Item 
    •   YE&T Library
    • ASCE
    • Journal of Composites for Construction
    • View Item
    •   YE&T Library
    • ASCE
    • Journal of Composites for Construction
    • View Item
    • All Fields
    • Source Title
    • Year
    • Publisher
    • Title
    • Subject
    • Author
    • DOI
    • ISBN
    Advanced Search
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Archive

    Effects of CFRP U-Wraps on the Behavior of NSM GFRP Retrofitted Reinforced Concrete Beams

    Source: Journal of Composites for Construction:;2025:;Volume ( 029 ):;issue: 001::page 04024087-1
    Author:
    Vui Van Cao
    DOI: 10.1061/JCCOF2.CCENG-4884
    Publisher: American Society of Civil Engineers
    Abstract: The near-surface mounted glass fiber–reinforced polymer (NSM GFRP) technique may encounter problems such as peeling-off and premature failure of NSM GFRP. To tackle these issues, this study explores the effects of carbon fiber–reinforced polymer (CFRP) U-wraps on the behavior of NSM GFRP retrofitted RC beams. Six RC beams were tested. One beam served as the control beam, another was retrofitted with two NSM GFRP bars without U-wraps, and four beams were retrofitted with an identical configuration but incorporated 1–4 pairs of U-wraps at each beam end. The experimental results confirmed the efficiency of the NSM GFRP retrofitting technique. The U-wraps successfully prevented peeling-off failure and forced the GFRP bars to work until rupture. NSM GFRP retrofitting moderately extended the elastic branch of the load–deflection curve in comparison to that of the control beam, increased the yield load by 22.4% and the ultimate load by 32.2%. The U-wraps significantly extended the postyield branch, improving the yield load by 28.6%–30.2% and ultimate load by 50.9%–57.5% compared with the control beam. NSM GFRP retrofitting transitioned the high ductility (7.3) to moderate ductility (2.9). Meanwhile, NSM GFRP retrofitting with 1–4 pairs of U-wraps reduced the ductility to 4.9, 4.4, 4.0 (high ductility), and 3.4 (moderate ductility). NSM GFRP retrofitting and U-wrapping negligibly increased the elastic stiffness, whereas NSM GFRP retrofitting enhanced the postyield stiffness by 380.8%–763.6% compared with the control beam. Finally, sectional analyses were performed and accurately predicted the yield moment capacity of RC beams retrofitted with NSM FRP, which can be useful for structural engineers.
    • Download: (2.225Mb)
    • Show Full MetaData Hide Full MetaData
    • Get RIS
    • Item Order
    • Go To Publisher
    • Price: 5000 Rial
    • Statistics

      Effects of CFRP U-Wraps on the Behavior of NSM GFRP Retrofitted Reinforced Concrete Beams

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4304434
    Collections
    • Journal of Composites for Construction

    Show full item record

    contributor authorVui Van Cao
    date accessioned2025-04-20T10:18:21Z
    date available2025-04-20T10:18:21Z
    date copyright10/25/2024 12:00:00 AM
    date issued2025
    identifier otherJCCOF2.CCENG-4884.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4304434
    description abstractThe near-surface mounted glass fiber–reinforced polymer (NSM GFRP) technique may encounter problems such as peeling-off and premature failure of NSM GFRP. To tackle these issues, this study explores the effects of carbon fiber–reinforced polymer (CFRP) U-wraps on the behavior of NSM GFRP retrofitted RC beams. Six RC beams were tested. One beam served as the control beam, another was retrofitted with two NSM GFRP bars without U-wraps, and four beams were retrofitted with an identical configuration but incorporated 1–4 pairs of U-wraps at each beam end. The experimental results confirmed the efficiency of the NSM GFRP retrofitting technique. The U-wraps successfully prevented peeling-off failure and forced the GFRP bars to work until rupture. NSM GFRP retrofitting moderately extended the elastic branch of the load–deflection curve in comparison to that of the control beam, increased the yield load by 22.4% and the ultimate load by 32.2%. The U-wraps significantly extended the postyield branch, improving the yield load by 28.6%–30.2% and ultimate load by 50.9%–57.5% compared with the control beam. NSM GFRP retrofitting transitioned the high ductility (7.3) to moderate ductility (2.9). Meanwhile, NSM GFRP retrofitting with 1–4 pairs of U-wraps reduced the ductility to 4.9, 4.4, 4.0 (high ductility), and 3.4 (moderate ductility). NSM GFRP retrofitting and U-wrapping negligibly increased the elastic stiffness, whereas NSM GFRP retrofitting enhanced the postyield stiffness by 380.8%–763.6% compared with the control beam. Finally, sectional analyses were performed and accurately predicted the yield moment capacity of RC beams retrofitted with NSM FRP, which can be useful for structural engineers.
    publisherAmerican Society of Civil Engineers
    titleEffects of CFRP U-Wraps on the Behavior of NSM GFRP Retrofitted Reinforced Concrete Beams
    typeJournal Article
    journal volume29
    journal issue1
    journal titleJournal of Composites for Construction
    identifier doi10.1061/JCCOF2.CCENG-4884
    journal fristpage04024087-1
    journal lastpage04024087-13
    page13
    treeJournal of Composites for Construction:;2025:;Volume ( 029 ):;issue: 001
    contenttypeFulltext
    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian
     
    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian