Theoretical-experimental behavior of steel fibers as a partial replacement for shear reinforcement in reinforced concrete beams
Abstract It is proposed to partially replace the stirrups with steel fibers and thus improve the shear strength of concrete beams. The variables studied were: water/cement ratios (w/c) = 0.55 and 0.35, and fiber volume (Vf) = 0, 0.3, 0.5, 0.7% and 0, 0.2, 0.4, 0.6% respectively, along with the separation of the stirrups. The results showed that the shear strength of the reinforced fiber and stirrups was greater than the strength of the beams reinforced only with stirrups. Experimental data and the strength prediction models comparison showed that the analytical models adequately predict the effect of the w/c ratio, the Vf, and the contribution of longitudinal and transverse steel. Also, the studied models predicted mainly conservative values with respect to the ultimate shear strength.
| Main Authors: | , , , , |
|---|---|
| Format: | Digital revista |
| Language: | English |
| Published: |
Asociación Latinoamericana de Control de Calidad, Patología y Recuperación de la Construcción A.C.
2021
|
| Online Access: | http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S2007-68352021000300005 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|