Answer Posted / vinod

Lap length of bar depends on grade of concrete and design
bond. Owing to the Grade of concretes:

Grade of concrete) Tension Compression
M15 56.4d 45.15d
M20 47d 37.6d
M25 40.3d 32.25d
M30 37.06d 30.1d


For stirrups Hook length, it will be (-)2x10d
Bend, it will be (-3d) upto 12dia.
(-4d) above 12dia.

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