Corrosion of steel reinforcements, especially stirrups, is considered as one of the most common reasons that
shorten the service life of the reinforced concrete structures. This study aims to replace the stirrups of the beams
by means of a tailor made steel fiber reinforced self-compacting concrete (SFRSCC). A hybrid flexural
reinforcement system was used for all these beams, composed of glass fiber reinforced polymer (GFRP) rebars
placed near to the outer surface of the tensile zone and steel reinforcements positioned with higher SFRSCC cover
to be protected against the corrosion, which is considered another strategy for enhancing the durability and
attending fire issues in terms of safety at ultimate limit states. The effectiveness of varying the prestressing force
applied to GFRP bars to improve the shear capacity and failure mode of the designed elements is evaluated. By
considering the obtained experimental results, the predictive performance of some analytical formulations for the shear resistance of fiber reinforced concrete beams was assessed. All formulations demonstrate acceptable accuracy for design purposes, but the one proposed by CEB-FIP Model Code 2010 predicts more conservative shear resistance.European Regional Development Fund (FEDER) - “Inotec”, with reference number 23024Portuguese Foundation for Science and Technology (FCT) - “SlabSys-HFRC”, with reference PTDC/ECM/120394/201
