Evaluation of service load deflection for beams reinforced by GFRP bars

This paper investigates the suitability of using the currently practiced ACI model to predict the deflection at service load for beams reinforced by glass fiber reinforced plastic (GFRP) bars. It also investigates the suitability of using some modified models available in the literature to predict the deflection for those beams. To explore that, a test program consisted of 15 beams categorized into five groups is conducted. Measured deflections at midspan of the beams for the five groups were analyzed and compared with the corresponding predicted values using the ACI model and those models available in the literature