Browsing by Author "FAEQ FAEQ, Mohammed Nozad"
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Item FLEXURAL BEHAVIOR OF REINFORCED CONCRETE BEAMS HAVING VARIOUS LAYERS OF CONVENTIONAL AND STEEL FIBER REINFORCED CONCRETE(2015-10-25) FAEQ FAEQ, Mohammed Nozad; MERTOL, Halit Cenan; BARAN, ErayFlexural behavior of reinforced concrete beams having various layers of conventional concrete and steel fiber reinforced concrete were investigated in this study. Two groups of five beams having 180×250×3500 mm dimensions were tested under four-point loading to evaluate the flexural behavior. Both of these groups of beams were reinforced with 416 reinforcing bars. The main variable in this research was the concrete type of the layers throughout the height of the specimen. The height of the cross-section of the beams was divided into 5 layers, each having 50 mm thicknesses. In group "F" specimens, SFRC was added to the layers of a conventional concrete beam, starting from the bottom, instead of conventional concrete. In group "P" specimens, SFRC layers were added starting from the top of the beam cross section. The load-deflection relationships of the tested beams under flexure were evaluated based on ultimate load, service stiffness, post-peak slope, and toughness characteristics. An analytical work was carried out to predict the behavior of the tested beams using the proposed stress-strain relationships in the literature.