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Computational Analysis of Bending Properties of Self-Compacting Concrete Reinforced With Steel Fibers

S.Suchithra and R.Malathy

Self-compacting concrete is a highly-workable concrete that without any vibration or impact and under its own weight fills the formwork, and it also passes easily through small spaces between rebars. In this paper, the effect of steel fibers on beams and beam-column joints of SCC specimens, using three different fiber volume fractions (0.5%, 1% and 1.5%) were investigated. Mix design for strength of 20 MPa (low strength) was considered. The load-deflection curve, ductility, moment rotation curve and energy absorption parameters were studied and compared with analytical method using ANSYS. The results revealed that the behavior of load-deflection, ductility and energy absorption was found to be more for the steel fibres having volume fraction 1.0% for SCC with partial replacement of cement with silica fume. SCC classes are reduced by increasing the steel fiber volume fraction, and using different forms of mineral admixtures. The results produced from the experimental work have also been proved with ANSYS.