Shear strength of steel fiber-reinforced concrete beams
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Data
2014-09
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Resumo
This study analyzed the mechanical behavior of shear strength of steel fiber-reinforced concrete
beams. Six beams subjected to shear loading were tested until failure. Additionally, prisms were tested to evaluate
fiber contribution to the concrete shear strength. Steel fibers were straight, hook-ended, 35 mm long and aspect
ratio equal to 65. Volumetric fractions used were 1.0 and 2.0%. The results demonstrated a great contribution
from steel fibers to shear strength of reinforced concrete beams and to reduce crack width, which can reduce the
amount of stirrups in reinforced concrete structures. Beam capacity was also evaluated by empirical equations,
and it was found that these equations provided a high variability, while some of them have not properly predicted
the ultimate shear strength of the steel fiber-reinforced concrete beams.
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Modelos empíricos, Empirical models, Fissuração, Redução de armadura transversal, Cracking, Transverse reinforcement reduction
Citação
ARAÚJO, Daniel de Lima; NUNES, Fernanda Gabrielle Tibúrcio; TOLEDO FILHO, Romildo Dias; ANDRADE, Moacir Alexandre Souza de. Shear strength of steel fiber-reinforced concrete beams. Acta Scientiarum. Technology, Maringá, v. 36, n. 3, p. 389-397, July/Sept. 2014.