Flexural behavior of concrete beams reinforced with glass fiber reinforced polymer and steel bars

• Autores: Cristian Espíndola Farias, Sarah Lodeti Pessi, Augusto Wanderlind, Jorge Henrique Piva, Elaine Guglielmi Pavei Antunes
• Localización: Revista de la Construcción, ISSN-e 0718-915X, ISSN 0717-7925, Vol. 21, Nº. 3, 2022, págs. 506-522
• Idioma: inglés
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• Resumen

  • In this study,a comparative experimental analysisis performedbetween steel-reinforced concrete beams, which are dimensioned based onNBR 6118 (2014), andbeams reinforced with glass fiber-reinforced polymer(GFRP)rebar, which are dimensioned based onACI 440.1R (2015)after being subjected to a four-point bending test. The beamsaredimensioned to resist the same forceand to satisfy the service limit state (SLS). Results showthat the two groups of beams exhibitsimilar vertical displacement behaviorsuntil the SLS-DEF, whereasthe GFRP beams exhibit larger deflections. At the ultimate load, the beams with fiberglass bars indicate a higher resistance byapproximately 64% compared withthosewith metal bars.