INFLUENCE OF FIBER ASPECT RATIO ON SHEAR CAPACITY OF DEEP BEAMS USING ARTIFICIAL NEURAL NETWORK TECHNIQUE

This paper deals with the effect of fiber aspect ratio of steel fibers on shear strength of steel fiber reinforced concrete deep beams loaded with shear span to depth ratio less than two using the artificial neural network technique. The network model predicts reasonably good results when compared with the equation proposed by previous researchers. The parametric study involves deep beams of M۵۵ grade concrete with fiber volume fraction ۰.۵% to ۲% of fiber aspect ratio ranging from ۵۰ to ۱۰۰ and longitudinal steel percentage varying from ۰% to ۲.۵%. The analysis reveals that the fiber aspect ratio also affects the shear strength and needs to be combined with fiber volume fraction.

کلیدواژه ها:

fiber aspect ratio ، steel fibre reinforced concrete ، volume fraction ، deep beam ، shear span ، neural network.