Behavior of Ductile Beam with Addition Confinement in Compression Zone

This paper explains the behavior of both reinforced concrete beams with and without confinement in compression zone to evaluate the influence of confinement in compression zone to the increasing of beam ductility. Four beams with reinforcement ratio ρ = 1.9% and ρ = 2.5% have been tested with monotonic loading. The results showed that an increase up to 300% in concrete strain for beams with confinement on the compression zone than beams without confinement. The increase also occurred in the load capacity and the curvature of beams with confinement, while the moment capacity did not show significant improvement.