The steel fibers are most widely used fibers in the present state of development of fiber reinforced concrete (FRC). This is due to the advantage that the addition of fibers to concrete converts the brittle characteristics of concrete to a ductile one, such as slabs and thin webs, where the use of shear reinforcement is not possible, the steel fibers gives them the strength to resist shear. The present study has been carried out to formulate the effect of steel fibers on the strength of concrete. The steel fibers of different aspect ratio have been used in the concrete with different proportions to conclude with the most effective percentage of steel fibers in the concrete and it is observed that the addition of steel fibers in the concrete mix resulted in improved structural performance measure in terms of ultimate load carrying capacity and deflection of beam specimens of all the series. The optimum fiber volume percentage for all the series was obtained as 1.5%. The further increase in fiber content reduced the load carrying capacity of the specimens due to poor compaction of concrete because of balling of fibers. Keywords: SFRC, aspect ratio, steel fibersCite this Article Sugandh Sharma, Taranjeet Kaur, Megha Kalra. The Study of Structural Behavior of Steel Fiber Reinforced Concrete Beam. Journal of Structural Engineering and Management. 2015; 2(3): 27–33p.