Evaluation of Shear Strength Approaches of SFRC Deep Beams without Stirrups

Abstract

The addition of steel fibres can be developed the mechanical properties and the crack control characteristics of concrete. In the last four decades, a lot of methods have been developed to estimate the shear strength of steel fiber reinforced concrete (SFRC) deep beams. In this study, seven different researchers’ predictions are compared with the test beams without stirrups. Although calculating of the shear strength of steel fiber reinforced concrete deep beams is a complex phenomenon, these researchers proposed different reasonable equations. Twenty nine beams has been obtained from existing sources of RC deep beam shear test results covering a wide range of beam properties and test methods. All the equations compared with their mean values, standard deviations and coefficient of variation. It is found that the equation proposed by Ashour et al. (1992) shows good agreement with regard to existing test results, giving the less coefficient of variation value than the other equations.