Show simple item record

dc.contributor.authorGribniak, Viktor
dc.contributor.authorSokolov, Aleksandr
dc.contributor.authorRimkus, Arvydas
dc.date.accessioned2023-09-18T18:53:20Z
dc.date.available2023-09-18T18:53:20Z
dc.date.issued2019
dc.identifier.urihttps://etalpykla.vilniustech.lt/handle/123456789/132875
dc.description.abstractResidual stiffness of reinforced concrete elements is closely related with structural integrity of cracked sections. A plenty of various evaluation procedures, however, does not enable the comparative analysis of different reinforcement schemes, since they are tested in different manner. To solve this problem, a new quantification procedure of the tension stiffening effect is introduced. It employs a new testing layout designed with the purpose to form multiple cracks in a small laboratory specimen. This enables to reduce scatter of the results due to the crack formation peculiarities. The corresponding analytical model, representing the average equivalent stress-strain behaviour of the tensile concrete, is proposed. The model is based on the following simplifications: smeared crack approach; linear strain distribution within the section depth; elastic behaviour of reinforcement and compressive concrete; and rectangular distribution of stresses in the tensile concrete. The latter assumption enables obtaining a closed-form analytical solution of the constitutive modelling problem. That makes the analysis results independent on the loading history: the analysis is performed in a uniform manner for the cases of short-term, sustained, or cyclic load applications. Furthermore, the proposed methodology could be acceptable for estimating residual stiffness of elements with various reinforcement combinations. The application of the proposed technique is illustrated experimentally. Several specimens with composite reinforcement are subjected to monotonic and cyclic load patterns.eng
dc.formatPDF
dc.format.extentp. 232-240
dc.format.mediumtekstas / txt
dc.language.isoeng
dc.source.urihttps://www.grad.unizg.hr/_download/repository/5_Proceedings-Novel-Methods-for-Characterization_%281%29.pdf
dc.source.urihttps://talpykla.elaba.lt/elaba-fedora/objects/elaba:36219913/datastreams/COVER/content
dc.titleA new approach to quantification of residual flexural stiffness of reinforced concrete
dc.typeStraipsnis recenzuotame konferencijos darbų leidinyje / Paper published in peer-reviewed conference publication
dcterms.accessRightsRILEM Proceedings PRO 128 ISBN: 9782351582176
dcterms.references13
dc.type.pubtypeP1d - Straipsnis recenzuotame konferencijos darbų leidinyje / Article published in peer-reviewed conference proceedings
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 008 - Medžiagų inžinerija / Material engineering
dc.subject.researchfieldT 002 - Statybos inžinerija / Construction and 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.enconcrete
dc.subject.encomposite reinforcement
dc.subject.entests
dc.subject.enanalytical model
dc.subject.entension stiffening
dcterms.sourcetitleProceedings of the international conference on Sustainable Materials, Systems and Structures (SMSS 2019). Novel methods for characterization of materials and structures, 20-22 March 2019, Rovinj, Croatia / edited by Ivan Gabrijel, Christian Grosse, Marijan Skazlić
dc.description.issuevol. 5
dc.description.volumepro. 128
dc.publisher.nameRILEM Publications
dc.publisher.cityParis
dc.identifier.elaba36219913


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record