Question

The distance between theoretical cut-off point and actual cut-off point in respect of the curtailment of reinforcement of reinforced concrete beams should not be less than

• A. Development length
• B. 12 $\times$ diameter of bar or effective depth whichever is greater
• C. 12 $\times$ diameter of bar or effective depth whichever is smaller
• D. 30 $\times$ diameter of bar or effective depth whichever is greater

Answer 1

The correct option is B 12 $\times$ diameter of bar or effective depth whichever is greater

The theoretical cut-off is the point of contraflexure. The distance between theoretical and actual cut-off point is equal to effective depth or 12 times the diameter of bar whichever is more.