Analysis of shear capacity of steel fiber reinforced concrete beams

Abstract

Fibers may be used in the flexural members like beams or slabs as a full or partial replacement of flexural or shear reinforcement. In the last case we have to do with combined reinforcement for shear. The methods for determining the shear capacity for SFRC elements are defned in scientific literature and also in Model Code 2010 and Russian Standard. In the paper there are presented and discussed two recent standard models and methods of calculation of shear loads in steel fiber reinforced concrete beams with combined flexural and shear reinforcement. Some chosen results of experimental investigation on shear capacity in SFRC beams including own research of flexural SFRC members tested under flexure are also presented and discussed. The tests results confirmed that steel fibers in reinforced concrete beams can partially replace (in certain cases) the traditional steel stirrups calculated for shear.