Behavior of CFRP-strengthened RC beams with circular web openings in shear zones: Numerical study

Basit Öğe Kaydı
dc.contributor.authorOzkilic, Yasin Onuralp
dc.contributor.authorAksoylu, Ceyhun
dc.contributor.authorYazman, Sakir
dc.contributor.authorGemi, Lokman
dc.contributor.authorArslan, Musa Hakan
dc.date.accessioned2024-02-23T14:12:27Z
dc.date.available2024-02-23T14:12:27Z
dc.date.issued2022
dc.departmentNEÜen_US
dc.description.abstractIn practice, especially the basement floor beams are drilled and damaged by the users. In some cases, this damage to the beams can be significant for the load-bearing element and the whole structure. In this study, the behavior of reinforced concrete beams with circular openings and the failure types resulting from strengthening these beams with CFRP are parametrically investigated. The diameter of the opening/beam height ratio (D/H), con-crete compressive strength, stirrup spacing, the position of the opening to the beam support, the type of CFRP application, CFRP ply orientation, and the number of CFRP layers were selected as parameters. Numerical models were verified using 9 specimens having different circular openings with/without CFRP strengthening and the analyses of 95 numerical models with the selected parameters were carried out utilizing the finite element program, ABAQUS. The ultimate load capacity, ductility, stiffness, energy dissipation capacity and failure modes of the beams were determined. As a result of the study, it was observed that there was no significant loss in ductility for the beams with D/H < 0.3 and the number of CFRP layer and type of application did not have a significant effect on D/H < 0.44. However, for the beams with D/H > 0.64, the CFRP application that completely surrounds openings should be preferred instead of partial CFRP strengthening. In addition, the concrete strength is an effective parameter for the beams with D/H < 0.44. The effect of the stirrup spacings in the beam on the ductile behavior was also limited with the increase in the hole diameter. The number of CFRP layers should theoretically be 4 for an effective strengthening in beams with D/H > 0.44. Finally, U wrapping is recommended instead of using full wrapping. It has been seen that the location and diameter of the hole are very important parameters in the failure type of the beam.en_US
dc.identifier.doi10.1016/j.istruc.2022.05.061
dc.identifier.endpage1389en_US
dc.identifier.issn2352-0124
dc.identifier.scopus2-s2.0-85132384074en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage1369en_US
dc.identifier.urihttps://doi.org/10.1016/j.istruc.2022.05.061
dc.identifier.urihttps://hdl.handle.net/20.500.12452/12054
dc.identifier.volume41en_US
dc.identifier.wosWOS:000815691200001en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Science Incen_US
dc.relation.ispartofStructuresen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCfrpen_US
dc.subjectCircular Openingen_US
dc.subjectFailure Modesen_US
dc.subjectReinforced Concrete Beamen_US
dc.subjectShear Damageen_US
dc.titleBehavior of CFRP-strengthened RC beams with circular web openings in shear zones: Numerical studyen_US
dc.typeArticleen_US

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu