This study comparatively evaluates the behavior of the flexural crack and diagonal crack of ultra-high performance fiber reinforced concrete beam containing coarse aggregate (UHPFRC-CA) under applied shear load. The beams were tested under four point loading arrangement to investigate the influence that shape of steel fiber, steel fiber volume (Vf) and shear span-depth ratio (a/d) have on their crack behavior. The results obtained from the study showed that decrease in a/d significantly incr...
This research assesses the capability of existing shear capacity equations to adequately predict the shear strengths/ultimate loads of ultra-high performance fibre reinforced concrete (UHPFRC) beams in order to check their level of accuracy and to determine the equation that can be reliably used to predict/design UHPFRC beams against shear loading. Influential shear variables like shear span-depth ratio (a/d), percentage volume of steel fibre (Vf), longitudinal tensile reinforcement ratio (ρ...
This paper proposes a shear capacity equation for ultra-high performance fiber reinforced concrete beam containing coarse aggregate (UHPFRC-CA) and without coarse aggregate (UHPFRC) that captures all UHPFRC’s direct and indirect shear influencing factors. Six beam samples (each sample containing two beam specimens) were tested for shear strength under four point loading configuration using shear span-depth ratio (a/d), percentage volume of steel fiber (Vf), shape of steel fiber and stirrup ...