Modified prediction approach of strength of high strength polyolefin fiber reinforced concrete corbels
DOI:
https://doi.org/10.21533/pen.v9.i2.815Abstract
This paper aims to investigate the effect of polyolefin fibers on high strength reinforced concrete corbels using twelve specimens with different quantities of fibers and shear span-to-span ratios, all corbels were only tested vertically. Due to the addition of polyolefin fibers, the ultimate load-carrying capacity of corbels was significantly improved, according to the findings of this study and other relevant data. The limitations and insufficiency of the three techniques were proven by a comparison of current test results and anticipated values by the ACI 318 Code -19 rules for the tested specimens, the Strut and Tie Model, and the proposed method. The ultimate shear load of polyolefin fiber reinforced high strength concrete corbels with was determined to be best predicted by applying the Strut and Tie Model technique to account for the fibers' contribution to strength.
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