Abstract
Push-off tests were performed and a finite element model was adopted to study the influence of steel fibers on shear transfer strength of concrete. Nine push-off specimens were used. The specimens were divided into three groups each of a definable amount of steel fibers. Also, the amount of steel stirrups crossing the shear plan was variable. The results show that the use of steel fibers in combination with steel stirrups can minimize the required amount of stirrups and improve strength and ductility. Comparing test and theoretical results with the provisions of ACI-05 Code, it is concluded the ACI-05 shear-friction method gives a very conservative estimate of shear transfer
