Abstract
A torsional response evaluation of horizontal structural members considers the most complex issues faced by structural members such as beams. The purpose of this research is to determine the structural response of steel fiber-recycled aggregate concrete beams under torsional effects. Torsion tests are performed on twenty reinforced steel fiber concrete samples with recycled aggregates, and supplementary tests are conducted on steel fiber concrete with recycled concrete in direct tension and fiber pullout tests. The main parameters of this research were the percentages of steel fibers and recycled aggregate. The torsional response and crack behavior of the beams were investigated. It was discovered that a beam reinforced with steel fiber and natural aggregate has a lower torsional response and a higher energy absorption capability than a beam with recycled aggregate and that a recycled beam has a lower ductility than a beam with natural aggregate.
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