Effects of the location and size of web openings on shear behavior of clamped-clamped reinforced concrete beams

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dc.contributor.authorAksoylu, Ceyhun
dc.contributor.authorOzkilic, Yasin Onuralp
dc.contributor.authorHakeem, Ibrahim Y.
dc.contributor.authorKalkan, Ilker
dc.date.accessioned2025-01-21T16:38:24Z
dc.date.available2025-01-21T16:38:24Z
dc.date.issued2024
dc.departmentKırıkkale Üniversitesi
dc.description.abstractThe present study pertains to the effects of variations in the location and size of drilled web openings on the behavior of fixed -fixed reinforced concrete (RC) beams. For this purpose, a reference bending beam with a transverse opening in each half span was tested to failure. Later, the same beam was modeled and analyzed with the help of finite element software using ABAQUS. Upon achieving close agreement between the experimental and numerical results, the location and size of the web opening were altered to uncover the effects of these factors on the shear strength and load -deflection behavior of RC beams. The experimental failure mode of the tested beam and the numerical results were also verified by theoretical calculations. In numerical analysis, when compared to the reference (D0) specimen, if the distance of the opening center from the support is 0 or h or 2h, reduction in load -bearing capacity of 1.5%-22.8% or 2.0%-11.3% or is 4.1%-40.7%. In other words, both the numerical analyses and theoretical calculations indicated that the beam behavior shifted from shear -controlled to flexure -controlled as the openings approached the supports. Furthermore, the deformation capacities, energy absorption values, and the ductilities of the beams with different opening diameters also increased with the decreasing distance of the opening from supports. Web compression failure was shown to be the predominant mode of failure of beams with large diameters due to the lack of sufficient material in the diagonal compression strut of the beam. The present study indicated that transverse openings with diameters, not exceeding about 1/3 of the entire beam depth, do not cause the premature shear failure of RC beams. Finally, shear damage should be prevented by placing special reinforcements in the areas where such gaps are opened.
dc.description.sponsorshipDeanship of Scientific Research at Najran University [NU/RG/SERC/12/11]
dc.description.sponsorshipThe authors thank the Deanship of Scientific Research at Najran University for funding this work under the Research Groups Funding program grant code (NU/RG/SERC/12/11) .
dc.identifier.doi10.12989/cac.2024.33.3.251
dc.identifier.endpage264
dc.identifier.issn1598-8198
dc.identifier.issn1598-818X
dc.identifier.issue3
dc.identifier.scopus2-s2.0-85187556848
dc.identifier.scopusqualityQ1
dc.identifier.startpage251
dc.identifier.urihttps://doi.org/10.12989/cac.2024.33.3.251
dc.identifier.urihttps://hdl.handle.net/20.500.12587/24657
dc.identifier.volume33
dc.identifier.wosWOS:001195821800003
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherTechno-Press
dc.relation.ispartofComputers and Concrete
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241229
dc.subjectbeam-type shear failure; chord; diagonal compression failure; finite element analysis; frame-type shear failure; post; transverse opening; Vierendeel mode of failure
dc.titleEffects of the location and size of web openings on shear behavior of clamped-clamped reinforced concrete beams
dc.typeArticle

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