Probabilistic analysis of shear capacity of reinforced concrete beams with av/d < 2·5

Abstract

The complexity in shear behaviour increases with the decrease in shear span to effective depth ratio (a_v/d) because of the increase in contribution of concrete to the shear resistance of beams. Various models such as numerical models and Strut and Tie models for estimating the shear capacity of non-slender reinforced concrete beams are proposed in the literature; each of them having their own advantages and limitations. In the present study two simpler mechanics-based shear capacity models, one for beams with 1≤a_v/da_v/da_v/da_v/d<1.