Influence of the proportion of FRP to steel reinforcement on the strength and ductility of hybrid reinforced concrete beams

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dc.authoridMertol, Halit/0000-0001-8058-5798
dc.authoridBaran, Eray/0000-0002-0240-803X
dc.authoridKARTAL, SARUHAN/0000-0002-1870-3287
dc.contributor.authorKartal, Saruhan
dc.contributor.authorKalkan, Ilker
dc.contributor.authorMertol, Halit Cenan
dc.contributor.authorBaran, Eray
dc.date.accessioned2025-01-21T16:41:47Z
dc.date.available2025-01-21T16:41:47Z
dc.date.issued2023
dc.departmentKırıkkale Üniversitesi
dc.description.abstractThe present study pertains to the influence of variation of FRP (Fiber Reinforced Polymer) proportion in tension reinforcement on the flexural behavior of RC beams with FRP and steel reinforcing bars. A total of 25 beams, including FRP-, steel- and hybrid FRP-steel reinforced ones, were tested to failure under four-point bending. Two types of FRP bars, GFRP (Glass Fiber Reinforced Polymer) and BFRP (Basalt Fiber Reinforced Polymer), were used and both over- and under-reinforced beams were tested. The beams in each group were designed to have close flexural capacities to fully reveal the effect of FRP proportion in the tension zone on beam ductility for a fixed bending capacity. A new analytical model was developed for estimating the bending capacities of beams. Different deformation and curvature ductility definitions were adopted and an energy-based definition, revealing the expected tendency in beam ductility, was determined. The test results revealed that the presence of even a single FRP bar in the tension zone results in reductions up to 40% in beam ductility as compared to the beam with full steel reinforcement. Each additional replacement of a steel bar with FRP was found to cause a further decrease up to 20% in beam ductility.
dc.description.sponsorshipKirikkale University Scientific Research Project Coordination Unit [2016/073]
dc.description.sponsorshipThe study was supported by Kirikkale University Scientific Research Project Coordination Unit under the project number 2016/073. This support is gratefully acknowledged. The experiments were conducted in the Structural Engineering Laboratory of Atilim University.
dc.identifier.doi10.1080/19648189.2022.2143429
dc.identifier.endpage3565
dc.identifier.issn1964-8189
dc.identifier.issn2116-7214
dc.identifier.issue12
dc.identifier.scopus2-s2.0-85141557859
dc.identifier.scopusqualityQ2
dc.identifier.startpage3546
dc.identifier.urihttps://doi.org/10.1080/19648189.2022.2143429
dc.identifier.urihttps://hdl.handle.net/20.500.12587/24953
dc.identifier.volume27
dc.identifier.wosWOS:000880267800001
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherTaylor & Francis Ltd
dc.relation.ispartofEuropean Journal of Environmental and Civil Engineering
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241229
dc.subjectFRP rupture; modulus of toughness; modulus of resilience; deformation ductility index; ultimate deflection; yielding of steel
dc.titleInfluence of the proportion of FRP to steel reinforcement on the strength and ductility of hybrid reinforced concrete beams
dc.typeArticle

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