Numerical Simulation of GFRP-reinforced Rectangular Concrete Beams and Proposed Design Expressions

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dc.authorid0000-0002-5176-9990
dc.authorid0000-0001-9906-0641
dc.contributor.authorSakcali, Gokhan Baris
dc.contributor.authorYuksel, Isa
dc.date.accessioned2026-02-08T15:15:54Z
dc.date.available2026-02-08T15:15:54Z
dc.date.issued2025
dc.departmentBursa Teknik Üniversitesi
dc.description.abstractRebar corrosion, which has emerged as a primary detrimental factor, significantly impacts the structural performance, durability, and overall serviceability of reinforced concrete (RC) structures. In response to this issue, the growing use of GFRP, which offers superior corrosion resistance compared to steel, highlights the need to compare its performance with traditional steel-reinforced beams. To address this need, this study aims to evaluate the flexural behavior of beams reinforced solely with GFRP rebar and assess their structural performance relative to steel-reinforced beams. To achieve this, finite element models of both steel-reinforced and GFRP-reinforced beams were developed using ANSYS software. The analysis focused on load-bearing capacities, displacement characteristics, and crack patterns, and included the calculation of strain energies corresponding to collapse prevention performance limits. Overall, the study concludes that these modifications enhance design guidelines for GFRP-reinforced beams, offering improved practical applications in structural design. Significant findings include the proposed modification to the minimum reinforcement ratio equation in ACI 440.1R-15 for GFRP-reinforced concrete, the introduction of a suggested strain reduction factor for GFRP rebar, and the revision of the effective moment of inertia equation with coefficients of 0.05 and 0.95. These revisions improved the general performance indicator to 1.17, yielding better results compared to other equations in the literature. The study concludes that these modifications enhance design guidelines for GFRP-reinforced beams, offering improved practical applications in structural design.
dc.identifier.doi10.3311/PPci.37254
dc.identifier.endpage279
dc.identifier.issn0553-6626
dc.identifier.issn1587-3773
dc.identifier.issue1
dc.identifier.scopus2-s2.0-85216488767
dc.identifier.scopusqualityQ2
dc.identifier.startpage263
dc.identifier.urihttps://doi.org/10.3311/PPci.37254
dc.identifier.urihttps://hdl.handle.net/20.500.12885/6024
dc.identifier.volume69
dc.identifier.wosWOS:001359011400001
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherBudapest Univ Technology Economics
dc.relation.ispartofPeriodica Polytechnica-Civil Engineering
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzWOS_KA_20260207
dc.subjectbeam
dc.subjectcrack propagation
dc.subjectFEM
dc.subjectflexure
dc.subjectGFRP rebar
dc.subjectsteel rebar
dc.titleNumerical Simulation of GFRP-reinforced Rectangular Concrete Beams and Proposed Design Expressions
dc.typeArticle

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