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Article: Deflection calculation of FRP-strengthened reinforced concrete flexural members

TitleDeflection calculation of FRP-strengthened reinforced concrete flexural members
Authors
KeywordsBeams
Deflection
Fibre-Reinforced Polymers
Reinforced Concrete
Slabs
Strengthening
Issue Date2010
Citation
Australian Journal Of Structural Engineering, 2010, v. 11 n. 2, p. 75-86 How to Cite?
AbstractExternally bonded fibre-reinforced polymer (FRP) composite plates can enhance the flexural strength, as well as stiffness to a limited degree, of reinforced concrete (RC) flexural members. Understanding the behaviour of these strengthened members at the serviceability and ultimate load ranges of response is of particular importance to engineers. The description of such behaviour is best described via plotting of the complete moment-curvature, as well as load-deflection responses from initial load to member failure. Based on the assumption of a tri-linear momentcurvature relationship, closed-form analytical solutions are presented in this paper for calculating the complete load-deflection response of FRP flexurally-strengthened one-way RC slabs and beams, which are simply-supported (three- and four-point bending), as well as cantilevered (free-end point load). The analytical predictions compare well with test results and the basis of a new "quad-linear" moment-curvature relationship is proposed that may better capture a so-called "pseudo-ductile" response occasionally observed in experiments. The infl uence of anchorage of the FRP strengthening for the prevention or delaying of debonding and a procedure for its inclusion in the analytical model is also discussed. Finally, the results of parametric studies are presented. © Institution of Engineers Australia, 2010.
Persistent Identifierhttp://hdl.handle.net/10722/150541
ISSN
2015 SCImago Journal Rankings: 0.296
References

 

DC FieldValueLanguage
dc.contributor.authorSmith, STen_US
dc.contributor.authorKim, SJen_US
dc.date.accessioned2012-06-26T06:05:34Z-
dc.date.available2012-06-26T06:05:34Z-
dc.date.issued2010en_US
dc.identifier.citationAustralian Journal Of Structural Engineering, 2010, v. 11 n. 2, p. 75-86en_US
dc.identifier.issn1328-7982en_US
dc.identifier.urihttp://hdl.handle.net/10722/150541-
dc.description.abstractExternally bonded fibre-reinforced polymer (FRP) composite plates can enhance the flexural strength, as well as stiffness to a limited degree, of reinforced concrete (RC) flexural members. Understanding the behaviour of these strengthened members at the serviceability and ultimate load ranges of response is of particular importance to engineers. The description of such behaviour is best described via plotting of the complete moment-curvature, as well as load-deflection responses from initial load to member failure. Based on the assumption of a tri-linear momentcurvature relationship, closed-form analytical solutions are presented in this paper for calculating the complete load-deflection response of FRP flexurally-strengthened one-way RC slabs and beams, which are simply-supported (three- and four-point bending), as well as cantilevered (free-end point load). The analytical predictions compare well with test results and the basis of a new "quad-linear" moment-curvature relationship is proposed that may better capture a so-called "pseudo-ductile" response occasionally observed in experiments. The infl uence of anchorage of the FRP strengthening for the prevention or delaying of debonding and a procedure for its inclusion in the analytical model is also discussed. Finally, the results of parametric studies are presented. © Institution of Engineers Australia, 2010.en_US
dc.languageengen_US
dc.relation.ispartofAustralian Journal of Structural Engineeringen_US
dc.subjectBeamsen_US
dc.subjectDeflectionen_US
dc.subjectFibre-Reinforced Polymersen_US
dc.subjectReinforced Concreteen_US
dc.subjectSlabsen_US
dc.subjectStrengtheningen_US
dc.titleDeflection calculation of FRP-strengthened reinforced concrete flexural membersen_US
dc.typeArticleen_US
dc.identifier.emailSmith, ST: stsmith@hku.hken_US
dc.identifier.emailKim, SJ: skim@hku.hk-
dc.identifier.authoritySmith, ST=rp00168en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-78650474663en_US
dc.identifier.hkuros178871-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-78650474663&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume11en_US
dc.identifier.issue2en_US
dc.identifier.spage75en_US
dc.identifier.epage86en_US
dc.publisher.placeAustraliaen_US
dc.identifier.scopusauthoridSmith, ST=8751691000en_US
dc.identifier.scopusauthoridKim, SJ=24833490500en_US

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