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INVESTIGATION OF STEEL FIBER REINFORCED CONCRETE CORBELS BY EXPERIMENTAL AND ANALYTICAL METHOD

SAYED SHOEB ILIYAS

Abstract


In the present paper, an experimental results and predicted values by truss analogy method, ACI Building Code (ACI 381-83) provisions for corbels, and method given by Fattuhi is investigated. The concrete used in the corbels is of M-60 grade. Test were carried out on 27 samples of size 150 x 150 x 200- mm were shear span was varied from 175 to 200 as shown in table (5) and concrete corbels reinforced with steel fiber. The properties of corbels varied and fiber content and span to depth ratio also varied. For all the 27 corbels vertical loading was used. It was noted that the ultimate strength of reinforced concrete corbels along with fibers can be predicted best by adding the fibers' contribution to strength using the shear friction equation to the ACI Building Code provisions. The main purpose of this experimental and analytical study is to investigate the behavior and shear strength of steel fiber reinforced concrete corbels. It is found that considerable improvement in in ultimate shear strength, toughness and first crack in the fiber containing corbels. Different percentage of fiber content was used ranging from 0.5 to 4 percent.

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References


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DOI: https://doi.org/10.37628/ijct.v2i2.113

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