Strengthening shear deficiency in undamaged reinforced concrete beams using innovative 45° mechanical steel stitches

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dc.contributor.authorAksoylu, Ceyhun
dc.contributor.authorUysal, Yusuf
dc.contributor.authorOzkilic, Yasin Onuralp
dc.contributor.authorBasaran, Bogachan
dc.contributor.authorArslan, Musa Hakan
dc.date.accessioned2024-02-23T14:12:28Z
dc.date.available2024-02-23T14:12:28Z
dc.date.issued2023
dc.departmentNEÜen_US
dc.description.abstractIn this study, beams with insufficient shear capacity were reinforced with U-shaped Mechanical Steel Stitches (MSS), which is an innovative approach. MSSs were applied at an angle of 45 degrees along the shear span on both faces of the beam body. A total of eight shear beam specimens, one of which is a reference and the other seven with different MSS spacing, were examined under vertical loads. The diameter, anchorage depth and mechanical properties of the MSSs and the geometry, longitudinal and transverse reinforcements of the reinforced concrete beam were kept constant. By changing the MSS intervals (from d/5 to d), the change was investigated in terms of strength, ductility, stiffness and energy consumption capacities. As a result of the study, 54% increase in shear capacity was observed in the beam with the most tightened MSS spacing (d/5). However, the nominal yield and total energy consumption capacity increased by 144% and 366%, respectively, compared to the reference beam. While splitting damage was most frequently observed in the MSS application with d/5, the damage turned into diagonal tension collapse, which is more abrupt and brittle as the spacing increases to d/2 range. As the MSS interval in beams increased from d/5 to d/2, the nominal yield stiffness of the beams showed a decreasing trend between 2.1% and 21.2% compared to the reference beam. Based on the experimental results, the developed novel strengthening methods can applicable to beams if the interval of MSS spacing is tightened enough.en_US
dc.description.sponsorshipScientific and Technological Council of Turkey (TUBITAK) [122M091]en_US
dc.description.sponsorshipThis study was prepared by using the master thesis of Yusuf UYSAL. The study was also supported by the Scientific and Technological Council of Turkey (TUBITAK) through grant number 122M091. The opinions expressed in this paper are those of the authors and do not reflect the views of the sponsor.en_US
dc.identifier.doi10.1016/j.istruc.2023.105523
dc.identifier.issn2352-0124
dc.identifier.scopus2-s2.0-85176266930en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.istruc.2023.105523
dc.identifier.urihttps://hdl.handle.net/20.500.12452/12058
dc.identifier.volume58en_US
dc.identifier.wosWOS:001112089500001en_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.subjectReinforced Concreteen_US
dc.subjectBeamen_US
dc.subjectReinforcementen_US
dc.subjectStrengtheningen_US
dc.subjectShearen_US
dc.subjectMechanical Steel Stitchesen_US
dc.titleStrengthening shear deficiency in undamaged reinforced concrete beams using innovative 45° mechanical steel stitchesen_US
dc.typeArticleen_US

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