Numerical and experimental study of the interaction between stirrups and shear strengthening with CFRP in RC beams

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dc.contributor.authorde Freitas Arcine M.
dc.contributor.authorVillanova Menon N.
dc.contributor.authorAugusto Krahl P.
dc.date.accessioned2025-04-01T06:55:49Z
dc.date.available2025-04-01T06:55:49Z
dc.date.issued2023
dc.description.abstract© 2022 Elsevier LtdThis paper investigated the effect of the interaction between stirrups and external CFRP strengthening or External Bonded Reinforcement (EBR) in Reinforced Concrete (RC) beams. First, experimental tests were performed using L-shaped laminates with a U-shaped bonding configuration. These strips were bonded in two positions: between and over the inner stirrups. In addition, a numerical model was calibrated based on the laboratory study. Then, shear span (B/d), compressive strength of the concrete, diameter of the stirrups, and positioning of the CFRP were studied. All beams where the laminates were bonded over the stirrups showed shear failure. However, for beams bonded in the area between stirrups, some failed by bending and others by shear forces. The parameters that had the most significant effect on CFRP debonding and shear strength were the location of the strengthening, the shear span, and the strength class of the concrete. Thus, the location of the strengthening around the transverse reinforcement changes the cracking mechanism of shear strengthened beams with the EBR system.
dc.description.volume278
dc.identifier.doi10.1016/j.engstruct.2022.115514
dc.identifier.issnNone
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/40467
dc.relation.ispartofEngineering Structures
dc.rightsAcesso Restrito
dc.subject.otherlanguageCarbon fiber
dc.subject.otherlanguageDebonding
dc.subject.otherlanguageExternal bonded to shear
dc.subject.otherlanguageNumerical analysis
dc.subject.otherlanguageSurface analysis
dc.titleNumerical and experimental study of the interaction between stirrups and shear strengthening with CFRP in RC beams
dc.typeArtigo
local.scopus.citations7
local.scopus.eid2-s2.0-85144814663
local.scopus.subjectBonded reinforcement
local.scopus.subjectBonding configurations
local.scopus.subjectExperimental test
local.scopus.subjectExternal bonded to shear
local.scopus.subjectL-shaped
local.scopus.subjectNumerical and experimental study
local.scopus.subjectReinforced concrete beams
local.scopus.subjectShear span
local.scopus.subjectShear strengthening
local.scopus.subjectU-shaped
local.scopus.updated2025-04-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85144814663&origin=inward
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