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Curtailment of Tension Reinforcement

Tension reinforcement is designed for sections where bending moment is maximum bending moment  varies along the span of a beam depending on the loading and support conditions.for economy its is general practice to curtail the bars where the bending moment is less.

the actual point of curtailment shell extend beyond the theoretical point of curtailment towards the support for a distance equal to 12 or the effective depth of the beam which ever is more.

in case of cantilever beams, 50% of bars may be curatiled at 0.5 or ld which ever is more from the face of the support.

in simply supported beams at least 50 % of bars  shall extend in the support for a length of ld/3 from the face of the support and the remaining 50 % can be curtailed at a distance from the center of the support.s