Abstract
The characteristics of crack load, failure load, crack and deflection of steel fiber reinforced concrete wall-beams simply supported have been studied though the tests of 12 steel fiber reinforced concrete wall-beams simply supported specimens. The upper steel of joists changing from tensile reinforcement to compressive reinforcement, neutral axis moving from joists to walls and phenomenon of stress redistribution in wall-beams with the increase of external load have been found; the optimum mixing amount of steel fiber has been determine and the increase rate of crack load and failure load comparing steel fiber reinforced concrete wall-beams simply supported with ordinary ones has been raised. It is good for the practical constructions application that steel fiber increases the ductility of simply supported wall-beams.
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