Comparison of different FRP reinforcement-concrete bond test methods according to parameters affecting this bond

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dc.contributor.authorBasaran, Bogachan
dc.contributor.authorKalkan, Ilker
dc.date.accessioned2025-01-21T16:36:47Z
dc.date.available2025-01-21T16:36:47Z
dc.date.issued2021
dc.departmentKırıkkale Üniversitesi
dc.description.abstractThere are many test methods in the international testing standards for the evaluation of FRP reinforcement-concrete bond. However, differences in test conditions of these methods affect FRP reinforcement-concrete bond. Therefore, even in the tests with identical test parameters, different bond strength values are attained due to experimental differences. In this study, the factors affecting FRP reinforcement-concrete bond were determined individually for four different test methods (hinged beam, beam-end, spliced beam and pullout tests) by using the gauss process regression (GPR) method. Accordingly, eight parameters affecting the bond strength, namely the diameter, fiber type, surface texture, embedment length, location in concrete and clear cover of reinforcement, the concrete compressive strength and the presence and degree of confining by means of transverse reinforcement were adopted as test parameters. In this way, the effects of each variable on bond strength were investigated for each test method and the methods were compared in terms of each parameter. The analyses on the four methods for identical test parameters depicted that there were differences in bond strength values as great as four times from one test method to another. The average bond strength values from the hinged beam tests were about 31, 3 and 146 % higher than the respective values from the pullout tests, beam-end tests and spliced beam tests, respectively. The degree of influence of each parameter on bond strength was established to depend on the test method and the same parameter was found to even have opposite effects on bond strength in different test methods.
dc.identifier.doi10.17341/gazimmfd.656823
dc.identifier.endpage1593
dc.identifier.issn1300-1884
dc.identifier.issn1304-4915
dc.identifier.issue3
dc.identifier.scopus2-s2.0-85107539003
dc.identifier.scopusqualityQ2
dc.identifier.startpage1582
dc.identifier.urihttps://doi.org/10.17341/gazimmfd.656823
dc.identifier.urihttps://hdl.handle.net/20.500.12587/24384
dc.identifier.volume36
dc.identifier.wosWOS:000655278700029
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isotr
dc.publisherGazi Univ, Fac Engineering Architecture
dc.relation.ispartofJournal of The Faculty of Engineering and Architecture of Gazi University
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_20241229
dc.subjectBond test methods; bond of FRP reinforcement; fiber reinforced polymer reinforcement; FRP reinforced concrete; mechanical interlocking; debonding failure
dc.titleComparison of different FRP reinforcement-concrete bond test methods according to parameters affecting this bond
dc.title.alternativeFRP donatı-beton aderansı deney yöntemlerinin aderansı etkileyen değişkenlere göre karşılaştırılması
dc.typeArticle

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