Authors : Ahmed M. Yosri and Mohamed A. Farouk
Abstract: The objective of this research is to investigate experimentally the behavior of high strength steel fiber reinforced concrete beams in shear, for predicting the shear strengths of these structural members. In the experimental program, the volume fraction of fiber was considered in order to determine its effect on the specimen strength. The studied parameter includes volume fraction of fibers (0, 0.25, 0.5 and 0.75%) at shear span to depth ratio (a/d) of 1.5. The elastic behavior of tested beams at flexural zone was also investigated. Experimental results indicated that the shear strength of tested beams was significantly increased as the volume fraction of steel fibers increased. The number of the cracks increased by using discrete steel fibers and become finer. Moreover, the crack propagation and modes of failure may be changed by using discrete steel fibers. Finally, the discrete steel fibers increase ductility and failure loads of the tested beams.
Ahmed M. Yosri and Mohamed A. Farouk, 2020. The Effect of Steel Fibers on the Shear Behavior of High Strength Reinforced Concrete Beams. Journal of Engineering and Applied Sciences, 15: 2758-2766.