Rodyti trumpą aprašą

dc.contributor.authorTorres, Lluis
dc.contributor.authorBarris, Cristina
dc.contributor.authorKaklauskas, Gintaris
dc.contributor.authorGribniak, Viktor
dc.date.accessioned2023-09-18T20:37:58Z
dc.date.available2023-09-18T20:37:58Z
dc.date.issued2015
dc.identifier.issn1225-4568
dc.identifier.other(BIS)VGT02-000029917
dc.identifier.urihttps://etalpykla.vilniustech.lt/handle/123456789/151491
dc.description.abstractThe contribution of tensioned concrete between cracks (tension-stiffening) cannot be ignored when analysing deformation of reinforced concrete elements. The tension-stiffening effect is crucial when it comes to adequately estimating the load-deformation response of steel reinforced concrete and the more recently appeared fibre reinforced polymer (FRP) reinforced concrete. This paper presents a unified methodology for numerical modelling of the tension-stiffening effect in steel as well as FRP reinforced flexural members using the concept of equivalent deformation modulus and the smeared crack approach to obtain a modified stress-strain relation of the reinforcement. A closed-form solution for the equivalent secant modulus of deformation of the tensioned reinforcement is proposed for rectangular sections taking the Eurocode 2 curvature prediction technique as the reference. Using equations based on general principles of structural mechanics, the main influencing parameters are obtained. It is found that the ratio between the equivalent stiffness and the initial stiffness basically depends on the product of the modular ratio and reinforcement ratio (nρ), the effective-to-total depth ratio (d/h), and the level of loading. The proposed methodology is adequate for numerical modelling of tension-stiffening for different FRP and steel reinforcement, under both service and ultimate conditions. Comparison of the predicted and experimental data obtained by the authors indicates that the proposed methodology is capable to adequately model the tension-stiffening effect in beams reinforced with FRP or steel bars within wide range of loading.eng
dc.formatPDF
dc.format.extentp. 997-1016
dc.format.mediumtekstas / txt
dc.language.isoeng
dc.relation.isreferencedbyINSPEC
dc.relation.isreferencedbyCompendex
dc.relation.isreferencedbyScopus
dc.relation.isreferencedbyScience Citation Index Expanded (Web of Science)
dc.source.urihttp://koreascience.or.kr/article/ArticleFullRecord.jsp?cn=KJKHB9_2015_v53n5_997
dc.subjectSD03 - Pažangios statybinės medžiagos, statinių konstrukcijos ir technologijos / Innovative building materials, structures and techniques
dc.titleModelling of tension-stiffening in bending RC elements basedon equivalent stiffness of the rebar
dc.typeStraipsnis Web of Science DB / Article in Web of Science DB
dcterms.references36
dc.type.pubtypeS1 - Straipsnis Web of Science DB / Web of Science DB article
dc.contributor.institutionUniversity of Girona, Spain
dc.contributor.institutionVilniaus Gedimino technikos universitetas
dc.contributor.facultyStatybos fakultetas / Faculty of Civil Engineering
dc.contributor.departmentStatinių konstrukcijų mokslo institutas / Research Institute of Building Structures
dc.subject.researchfieldT 002 - Statybos inžinerija / Construction and engineering
dc.subject.ltspecializationsL104 - Nauji gamybos procesai, medžiagos ir technologijos / New production processes, materials and technologies
dc.subject.enReinforced concrete
dc.subject.enTension-stiffening
dc.subject.enConstitutive modelling
dc.subject.enFibre reinforced polymer reinforcement
dc.subject.enSteel reinforcement
dc.subject.enServiceability
dc.subject.enNumerical modelling
dcterms.sourcetitleStructural engineering and mechanics
dc.description.issueiss. 5
dc.description.volumeVol. 53
dc.publisher.nameTechno-Press
dc.publisher.cityYuseong
dc.identifier.doi000352386500012
dc.identifier.doi10.12989/sem.2015.53.5.997
dc.identifier.elaba8279890


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Rodyti trumpą aprašą