Sr.No. | Shape | Hook Length As Per Is Code | Single Ling Diagram | Cutting Length Formula for Reinforcement (d = Steel Dia) |
1 | 2 (A + E) + 24d | 2 (A + E) + 24d | ||
2 | 2 (A + E) + 20d | 2 (A + E) + 20d | ||
3 | 2A + E + 28d | 2A + E + 28d | ||
4 | L + 2H | L+2H =L + 2 x (4d+ d+2kd) =L + ( 4d +4d +d) x2 =L + 18d | ||
5 | Where P is not greater than D/5N = Number of complete and fractional turnsD = Internal diaP = Pitch of helixd = Size of barN π (D + d) + 8d | – | N π (D + d) + 8d | |
B | 4C + 24d | 4C + 24d | ||
C | 4C + 20d | 4C + 20d |
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