Flexural performance of FRP reinforced concrete beams

dc.authorid0000-0002-4800-6060
dc.contributor.authorKara, Ilker Fatih
dc.contributor.authorAshour, Ashraf F.
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2012
dc.departmentNiğde ÖHÜ
dc.description.abstractA numerical method for estimating the curvature, deflection and moment capacity of FRP reinforced concrete beams is developed. Force equilibrium and strain compatibility equations for a beam section divided into a number of segments are numerically solved due to the non-linear behaviour of concrete. The deflection is then obtained from the flexural rigidity at mid-span section using the deflection formula for various load cases. A proposed modification to the mid-span flexural rigidity is also introduced to account for the experimentally observed wide cracks over the intermediate support of continuous FRP reinforced concrete beams. Comparisons with experimental results show that the proposed numerical technique can accurately predict moment capacity, curvature and deflection of FRP reinforced concrete beams. The ACI-440.1R-06 equations reasonably predicted the moment capacity of FRP reinforced concrete beams but progressively underestimated the deflection of continuous ones. On the other hand, the proposed modified formula including a correction factor for the beam flexural rigidity reasonably predicted deflections of continuous FRP reinforced concrete beams. It was also shown that a large increase in FRP reinforcement slightly increases the moment capacity of FRP over-reinforced concrete beams but greatly reduces the defection after first cracking. (C) 2011 Elsevier Ltd. All rights reserved.
dc.description.sponsorshipHigher Education Council (YOK) of Turkey
dc.description.sponsorshipThe first author acknowledges the financial support of the Higher Education Council (YOK) of Turkey.
dc.identifier.doi10.1016/j.compstruct.2011.12.012
dc.identifier.endpage1625
dc.identifier.issn0263-8223
dc.identifier.issue5
dc.identifier.scopus2-s2.0-84858705196
dc.identifier.scopusqualityQ1
dc.identifier.startpage1616
dc.identifier.urihttps://dx.doi.org/10.1016/j.compstruct.2011.12.012
dc.identifier.urihttps://hdl.handle.net/11480/4592
dc.identifier.volume94
dc.identifier.wosWOS:000302980400014
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherELSEVIER SCI LTD
dc.relation.ispartofCOMPOSITE STRUCTURES
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectConcrete
dc.subjectDeflection
dc.subjectMoment capacity
dc.subjectEffective moment of inertia
dc.subjectFibre reinforced polymer
dc.titleFlexural performance of FRP reinforced concrete beams
dc.typeArticle

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