Rodyti trumpą aprašą

dc.contributor.authorGarnevičius, Mantas
dc.contributor.authorPlioplys, Linas
dc.contributor.authorGribniak, Viktor
dc.date.accessioned2023-09-18T20:33:45Z
dc.date.available2023-09-18T20:33:45Z
dc.date.issued2020
dc.identifier.urihttps://etalpykla.vilniustech.lt/handle/123456789/150765
dc.description.abstractBond behaviour of a synthetic macro-fibre in concrete is the object of this research. The bond strength and stiffness are the parameters characterising the bonding mechanism that determines the efficiency of the reinforcing material. However, there is no general methodology developed to evaluate these properties. There also exists neither a straightforward procedure to estimate the bond quality of a synthetic macro-fibre nor a reliable numerical model to mimic the bond behaviour of such fibres. In this work, the bond mechanisms of 40 mm long synthetic macro-fibres are investigated using pull-out tests: 32 concrete cubes were made for that purpose. Two types of synthetic macro-fibres available at the market are investigated. In each test sample, three fibres were placed perpendicular to the top surface and two sides; two bonding lengths (10 mm and 20 mm) were considered. A gripping system was developed to protect the fibres from local damage. The obtained load-displacement diagrams demonstrated that mechanical parameters of the bond (strength and deformation modulus) of the “top” fibres are almost 20% weaker than that of the fibres positioned to the side surfaces. Therefore, the results of the “top” fibres were excluded from further analysis. One fibre type was chosen for numerical modelling because of sufficient strength of the fibre material to activate the bond-slip mechanism. A physically non-linear finite element model of the pull-out sample was developed. A bond model was proposed to simulate deformation behaviour of the fibre with the different bonding length.eng
dc.format.extentp. 33-39
dc.format.mediumtekstas / txt
dc.language.isoeng
dc.relation.ispartofseriesfib Proceedings no. 50 2617-4820
dc.relation.isreferencedbyScopus
dc.rightsLaisvai prieinamas internete
dc.source.urihttps://www.fib-international.org/publications/fib-proceedings/13th-phd-symposium-in-paris-france-2020-proceedings-em-pdf-em-detail.html
dc.source.urihttps://talpykla.elaba.lt/elaba-fedora/objects/elaba:70528299/datastreams/MAIN/content
dc.titleA bond model of synthetic macro-fibre in concrete
dc.typeStraipsnis konferencijos darbų leidinyje Scopus DB / Paper in conference publication in Scopus DB
dcterms.licenseCreative Commons – Attribution – NonCommercial – NoDerivatives – 4.0 International
dcterms.references10
dc.type.pubtypeP1b - Straipsnis konferencijos darbų leidinyje Scopus DB / Article in conference proceedings Scopus DB
dc.contributor.institutionVilniaus Gedimino technikos universitetas
dc.contributor.facultyStatybos fakultetas / Faculty of Civil Engineering
dc.contributor.departmentStatinių ir tiltų konstrukcijų institutas / Institute of Building and Bridge Structures
dc.subject.researchfieldT 002 - Statybos inžinerija / Construction and engineering
dc.subject.researchfieldT 008 - Medžiagų inžinerija / Material engineering
dc.subject.vgtuprioritizedfieldsSD0101 - Pažangios statinių konstrukcijos / Smart building structures
dc.subject.ltspecializationsL104 - Nauji gamybos procesai, medžiagos ir technologijos / New production processes, materials and technologies
dc.subject.ltspecializationsC101 - Civilinės inžinerijos mokslo centras /
dc.subject.enBond model
dc.subject.ensynthecic fibres
dc.subject.enconcrete
dc.subject.entests
dcterms.sourcetitleProceedings of the 13th FIB International PhD Symposium in Civil Engineering, held in Paris, France, August 26-28, 2020
dc.publisher.nameInternational Federation for Structural Concrete (fib)
dc.publisher.cityLausanne
dc.identifier.elaba70528299


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