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Article: Modeling debonding failure in FRP flexurally strengthened RC members using a local deformation model

TitleModeling debonding failure in FRP flexurally strengthened RC members using a local deformation model
Authors
KeywordsBonding
Concrete Beams
Concrete Slabs
Deformation
Fiber Reinforced Polymers
Issue Date2007
PublisherAmerican Society of Civil Engineers. The Journal's web site is located at http://www.pubs.asce.org/journals/cc.html
Citation
Journal Of Composites For Construction, 2007, v. 11 n. 2, p. 184-191 How to Cite?
AbstractReinforced concrete (RC) beams and slabs can be strengthened by bonding fiber-reinforced polymer (FRP) composites to their tension face. The performance of such flexurally strengthened members can be compromised by debonding of the FRP, with debonding initiating near an intermediate crack (IC) in the member away from the end of the FRP. Despite considerable research over the last decade, reliable IC debonding strength models still do not exist. The current paper attempts to correct this situation by presenting a local deformation model that can simulate IC debonding. The progressive formation of flexural cracks, and the associated crack spacings and crack widths are modelled from initial cracking to the onset of debonding. The bond characteristics between the longitudinal steel reinforcement and concrete, and the FRP and concrete, as well as the tension stiffening effect of the reinforcement and FRP to the concrete, are considered. The FRP-to-concrete bond-slip relation is used to determine the onset of debonding. The analytical predictions compare well with experimental results of FRP-strengthened RC cantilever slabs. © 2007 ASCE.
Persistent Identifierhttp://hdl.handle.net/10722/150397
ISSN
2015 Impact Factor: 2.503
2015 SCImago Journal Rankings: 2.051
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorSmith, STen_US
dc.contributor.authorGravina, RJen_US
dc.date.accessioned2012-06-26T06:04:15Z-
dc.date.available2012-06-26T06:04:15Z-
dc.date.issued2007en_US
dc.identifier.citationJournal Of Composites For Construction, 2007, v. 11 n. 2, p. 184-191en_US
dc.identifier.issn1090-0268en_US
dc.identifier.urihttp://hdl.handle.net/10722/150397-
dc.description.abstractReinforced concrete (RC) beams and slabs can be strengthened by bonding fiber-reinforced polymer (FRP) composites to their tension face. The performance of such flexurally strengthened members can be compromised by debonding of the FRP, with debonding initiating near an intermediate crack (IC) in the member away from the end of the FRP. Despite considerable research over the last decade, reliable IC debonding strength models still do not exist. The current paper attempts to correct this situation by presenting a local deformation model that can simulate IC debonding. The progressive formation of flexural cracks, and the associated crack spacings and crack widths are modelled from initial cracking to the onset of debonding. The bond characteristics between the longitudinal steel reinforcement and concrete, and the FRP and concrete, as well as the tension stiffening effect of the reinforcement and FRP to the concrete, are considered. The FRP-to-concrete bond-slip relation is used to determine the onset of debonding. The analytical predictions compare well with experimental results of FRP-strengthened RC cantilever slabs. © 2007 ASCE.en_US
dc.languageengen_US
dc.publisherAmerican Society of Civil Engineers. The Journal's web site is located at http://www.pubs.asce.org/journals/cc.htmlen_US
dc.relation.ispartofJournal of Composites for Constructionen_US
dc.subjectBondingen_US
dc.subjectConcrete Beamsen_US
dc.subjectConcrete Slabsen_US
dc.subjectDeformationen_US
dc.subjectFiber Reinforced Polymersen_US
dc.titleModeling debonding failure in FRP flexurally strengthened RC members using a local deformation modelen_US
dc.typeArticleen_US
dc.identifier.emailSmith, ST:stsmith@hku.hken_US
dc.identifier.authoritySmith, ST=rp00168en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1061/(ASCE)1090-0268(2007)11:2(184)en_US
dc.identifier.scopuseid_2-s2.0-33947330302en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33947330302&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume11en_US
dc.identifier.issue2en_US
dc.identifier.spage184en_US
dc.identifier.epage191en_US
dc.identifier.isiWOS:000245529800009-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridSmith, ST=8751691000en_US
dc.identifier.scopusauthoridGravina, RJ=16047675200en_US

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