ABSTRACT
A study on the use of a finite element formulation for the analysis of reinforced fibrous concrete (RFC) beams under predominant shear is presented. The formulation treats the cracked reinforced fibre concrete as an orthotropic non-linear elastic material, based on a smeared rotating crack model. Approporiate constitutive relations for the cracked RFC, accounting for the post cracking tensile strength and softening in compression are used in the principal stress/strain directions to define the secant moduli. The crack model along with a four noded quadrilateral finite element has been used to predict the behaviour of reinforced fibrous concrete beams. The analytically obtained results show good correlation with the test results of six reinforced steel fibre concrete I beams, and also some of the test results available in the literature.
