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Flexural retrofit of RC beams using CFRP laminates
D. S.Adsam Gideon,
Published in Institute of Physics Publishing
2018
Volume: 431
   
Issue: 7
Abstract
RC structural members have to be retrofitted to comply with the revised codal provisions and changes in functionality of structures. This study aims to investigate the behaviour of prototype RC beams having high shear span ratio externally bonded with CFRP laminates. Four-point bending tests were conducted up to failure of the specimens. The applied load, deflection, strain in concrete, steel reinforcements and CFRP laminate were measured during the testing. The retrofitted specimens showed an increase in ultimate load carrying capacity and stiffness up to 53% and 61% respectively. The retrofitted specimens failed by interfacial crack induced debonding failure mode at a strain of 25% of CFRP laminate's rupture strain. This study concludes that CFRP laminates are to be anchored on RC beams along with bonding using adhesives. © 2018 Institute of Physics Publishing. All rights reserved.
About the journal
JournalIOP Conference Series: Materials Science and Engineering
PublisherInstitute of Physics Publishing
ISSN17578981
Open AccessYes
Concepts (13)
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    Adhesives
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    Bending tests
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    Concrete beams and girders
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    Load limits
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    Codal provisions
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    DEBONDING FAILURE
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    EXTERNALLY BONDED
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    FOUR-POINT BENDING TEST
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    INTERFACIAL CRACKS
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    RUPTURE STRAIN
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    Steel reinforcements
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    ULTIMATE LOAD-CARRYING CAPACITY
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    Laminates