Bar Bending Schedule Formulas As Per IS:2502-1963 | Unit Weight of Steel Bars

What Is Bar Bending Schedule?

Location Mark Designation Size and Type Number Per Set Number of Sets Total Number Length Shape ( All Dimensions Are in Accordance with This Standard Unless Otherwise Stated) (1) (2) (3) (4) (5) (6) (7) (8) Column C4 4R 25 N MS Road 25 mm 5 4 20 3000 Straight Read more

Bar Bending Schedule Use Formulas

Density = 7850 Kg / m3 Steel Bar Mass = Weight of Steel D = Dia of Bar in mm L = Lenght of M Volume = πD2 /4 x 1000 mm Weight of Steel = (7850) x (πD2 x L/4 ) Weight of Steel = (7850/1000 x 1000 x 1000 ) x ( 3.14 D2 /4 ) Weight of Steel = (7850/1000 x 1000 x 1000 ) x ( 3.14 D2 x 1000 x/4 ) Weight of Steel = 0.00785 x 0.785 D2 Weight of Steel =0.00616225 x D2 Weight of Steel = (0.00616225/1) x (D2 /1 ) Weight of Steel = D2 / 162.27 kg/m Read more

Op-1 of calculation steel weight

Weight of Steel = D2 / 162.27 mm Weight of Steel = 122 / 162.27 mm Weight of Steel = 144 / 162.27 mm Weight of Steel = 0. 8874 Kg/m Read more

Op-2 of calculation steel weight

Weight of Steel = (7850) x (π122 x L/4 ) Weight of Steel = (7850/1000 x 1000 x 1000 ) x ( 3.14 122 /4 ) Weight of Steel = (7850/1000 x 1000 x 1000 ) x ( 3.14 122 x 1000 x/4 ) Weight of Steel = 0.00785 x 0.785 122 Weight of Steel =0.00616225 x 144 Weight of Steel = (0.00616225 x 144) Weight of Steel = 0.8874 Kg/m Read more

2. Plan Bar Length

k in 2 in the case of Mild Steel conforming, ( As per IS 2502:1963, P-6, Note-1 ) k in 3 in the case of Medium Tensile Steel conforming, ( As per IS 2502:1963, P-6, Note-1 ) k in 4 in the case of Cold-worked Steel conforming, ( As per IS 2502:1963, P-6, Note-1 ) Read more

H = Hook allowance taken as 9d, 11d, 13d, and 17d for k values 2, 3, 4 and 6 respectively and rounded off to the nearest 5 mm, but not less than 75 mm. B = Bend allowance is taken as 5d, 5.5d, 6d, and 7d for k values 2, 3, 4 and 6 respectively and rounded off to the nearest 5 mm, but not less than 75 mm. Read more

4. Bar Bending Schedule Formulas as below (As per IS 2502:1963, P-8, Table-III )

Ref No. Method of Measurement of Bending Dimensions Approx Total Length of Bar (L) Measured Along Centre Line Sketch and Dimensions to Be Given in Schedule Approx Total Length of Bar (L) Measured Along Centre Line - Mild Steel Approx Total Length of Bar (L) Measured Along Centre Line - Medium Tensile Steel A 2A + E + C +9d + B 2A + E + C +9d + 6d 2A + E + C +9d + 7d 2A + E + C +9d + 8d B 4C + 24d 4C + 24d 4C + 24d 4C + 24d C 4C + 20d 4C + 20d 4C + 20d 4C + 20d D 2A + 3D + 22d 2A + 3D + 22d 2A + 3D + 22d 2A + 3D + 22d E 2A + 3D + 22d 2A + 3D + 22d 2A + 3D + 22d 2A + 3D + 22d F Where P is not greater than D/5N = Number of complete and fractional turnsD = Internal diaP = Pitch of helixd = Size of bar N π (D + d) + 8d - N π (D + d) + 8d N π (D + d) + 8d N π (D + d) + 8d G L + H L+H =L + 4d+ d+2kd =L + 4d +4d +d = L + 9d L+H =L + 4d+ d+2kd =L + (2 x 3)d +4d +d = L + 11d L+H =L + 4d+ d+2kd =L + (2 x 4 )d +4d +d = L + 13d H L + 2H L+2H =L + 2 x (4d+ d+2kd) =L + ( 4d +4d +d) x2 = L + 18d L+2H =L + 2 x (4d+ d+2kd) =L + ((2 x 3)d +4d +d ) x 2 = L + 22d L+2H =L + 2 x (4d+ d+2kd) =L + ((2 x 4 )d +4d +d ) x 2 = L + 26d I L + B L + B =L +4d + kd =L +4d + 2d = L +6d L + B =L +4d + kd =L +4d + 3d = L +7d L + B =L +4d + kd =L +4d + 4d = L +8d J L + 2B L + 2B =L + 2x (4d + kd) =L +2 x (4d + 2d) = L +12d L + 2B =L + 2x (4d + kd) =L +2 x (4d + 3d) = L +14d L + 2B =L + 2x (4d + kd) =L +2 x (4d + 4d) = L +16d K Where C is more than3D A + C + E A + C + E A + C + E A + C + E L If angle with horizontal is 45o or less, and R is 12d or less A + C + E + 18d or L + 18d + C - √ ( C2 - D2 ) A + C + E + 22d or L + 22d + C - √ ( C2 - D2 ) A + C + E + 26d or L + 26d + C - √ ( C2 - D2 ) M If angle with horizontal is 45o or less, and R is 12d or less A + C1 + C2 + E + F +18d or L +C1 + C2 + 18d - √ ( C12 - D12 ) - √ ( C22 - D22 ) A + C1 + C2 + E + F +22d or L +C1 + C2 + 22d - √ ( C12 - D12 ) - √ ( C22 - D22 ) A + C1 + C2 + E + F +26d or L +C1 + C2 + 26d - √ ( C12 - D12 ) - √ ( C22 - D22 ) N A + E - 0.5 R - d A + E - 0.5 R - d A + E - 0.5 R - d A + E - 0.5 R - d O A + E - 0.5 R - d + 2B A + E - 0.5 R - d + 12d A + E - 0.5 R - d + 14d A + E - 0.5 R - d + 16d P A + E - 0.5 R - d + 2H A + E - 0.5 R - d + 18d A + E - 0.5 R - d + 22d A + E - 0.5 R - d + 26d Q A + E + 1.5 D + 2H A + E + 1.5 D + 18d A + E + 1.5 D + 22d A + E + 1.5 D + 26d R If angle with horizontal is 45o or less A + E A + E A + E A + E S If angle with horizontal is 45o or less R is 12d or less A + E + 18d A + E + 22d A + E + 26d T If angle with horizontal is 45o or less A + B + C + 9d -2(R + d) A + B + C + 11d -2(R + d) A + B + C + 13d -2(R + d) U L + 2H L + 18d L + 22d L + 26d V A + E + 2S + 2H + d A + E + 2S + 18d + d A + E + 2S + 22d + d A + E + 2S + 26d + d W A + E + 3S + 2d + B +H A + E + 3S + 2d + 6d + 9d A + E + 3S + 2d + 7d + 11d A + E + 3S + 2d + 8d + 13d X A + E + C + 2H - √ ( C2 - D2 ) -D A + E + C + 18d - √ ( C2 - D2 ) -D A + E + C + 22d - √ ( C2 - D2 ) -D A + E + C + 26d - √ ( C2 - D2 ) -D Y E + 2(A - D + C + H) E + 2(A - D + C + 9d) E + 2(A - D + C + 11d) E + 2(A - D + C + 13d) Z L + 2C + 2H L + 2C + 18d L + 2C + 22d L + 2C + 26d AA 2C + 2E1 + L + 2H 2C + 2E1 + L + 18d 2C + 2E1 + L + 22d 2C + 2E1 + L + 26d AB 2 (A + E) + 24d 2 (A + E) + 24d 2 (A + E) + 24d 2 (A + E) + 24d AC 2 (A + E) + 20d 2 (A + E) + 20d 2 (A + E) + 20d 2 (A + E) + 20d AD 2A + E + 28d 2A + E + 28d 2A + E + 28d 2A + E + 28d AE 2A + E + C +12d + B 2A + E + C +12d + 6d 2A + E + C +12d + 7d 2A + E + C +12d + 8d AF L Straight L L L Read more

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Location	Mark Designation	Size and Type	Number Per Set	Number of Sets	Total Number	Length	Shape ( All Dimensions Are in Accordance with This Standard Unless Otherwise Stated)
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)
Column	C4 4R 25 N	MS Road 25 mm	5	4	20	3000	Straight

Ref No.	Method of Measurement of Bending Dimensions	Approx Total Length of Bar (L) Measured Along Centre Line	Sketch and Dimensions to Be Given in Schedule	Approx Total Length of Bar (L) Measured Along Centre Line - Mild Steel	Approx Total Length of Bar (L) Measured Along Centre Line - Medium Tensile Steel
A		2A + E + C +9d + B		2A + E + C +9d + 6d	2A + E + C +9d + 7d	2A + E + C +9d + 8d
B		4C + 24d		4C + 24d	4C + 24d	4C + 24d
C		4C + 20d		4C + 20d	4C + 20d	4C + 20d
D		2A + 3D + 22d		2A + 3D + 22d	2A + 3D + 22d	2A + 3D + 22d
E		2A + 3D + 22d		2A + 3D + 22d	2A + 3D + 22d	2A + 3D + 22d
F		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	N π (D + d) + 8d	N π (D + d) + 8d
G		L + H		L+H =L + 4d+ d+2kd =L + 4d +4d +d =L + 9d	L+H =L + 4d+ d+2kd =L + (2 x 3)d +4d +d =L + 11d	L+H =L + 4d+ d+2kd =L + (2 x 4 )d +4d +d =L + 13d
H		L + 2H		L+2H =L + 2 x (4d+ d+2kd) =L + ( 4d +4d +d) x2 =L + 18d	L+2H =L + 2 x (4d+ d+2kd) =L + ((2 x 3)d +4d +d ) x 2 =L + 22d	L+2H =L + 2 x (4d+ d+2kd) =L + ((2 x 4 )d +4d +d ) x 2 =L + 26d
I		L + B		L + B =L +4d + kd =L +4d + 2d =L +6d	L + B =L +4d + kd =L +4d + 3d =L +7d	L + B =L +4d + kd =L +4d + 4d =L +8d
J		L + 2B		L + 2B =L + 2x (4d + kd) =L +2 x (4d + 2d) =L +12d	L + 2B =L + 2x (4d + kd) =L +2 x (4d + 3d) =L +14d	L + 2B =L + 2x (4d + kd) =L +2 x (4d + 4d) =L +16d
K		Where C is more than3DA + C + E		A + C + E	A + C + E	A + C + E
L		If angle with horizontal is 45o or less, and R is 12d or less		A + C + E + 18dorL + 18d + C - √ ( C2 - D2 )	A + C + E + 22dorL + 22d + C - √ ( C2 - D2 )	A + C + E + 26dorL + 26d + C - √ ( C2 - D2 )
M		If angle with horizontal is 45o or less, and R is 12d or less		A + C1 + C2 + E + F +18d orL +C1 + C2 + 18d - √ ( C12 - D12 ) - √ ( C22 - D22 )	A + C1 + C2 + E + F +22d orL +C1 + C2 + 22d - √ ( C12 - D12 ) - √ ( C22 - D22 )	A + C1 + C2 + E + F +26dorL +C1 + C2 + 26d - √ ( C12 - D12 ) - √ ( C22 - D22 )
N		A + E - 0.5 R - d		A + E - 0.5 R - d	A + E - 0.5 R - d	A + E - 0.5 R - d
O		A + E - 0.5 R - d + 2B		A + E - 0.5 R - d + 12d	A + E - 0.5 R - d + 14d	A + E - 0.5 R - d + 16d
P		A + E - 0.5 R - d + 2H		A + E - 0.5 R - d + 18d	A + E - 0.5 R - d + 22d	A + E - 0.5 R - d + 26d
Q		A + E + 1.5 D + 2H		A + E + 1.5 D + 18d	A + E + 1.5 D + 22d	A + E + 1.5 D + 26d
R		If angle with horizontal is 45o or lessA + E		A + E	A + E	A + E
S		If angle with horizontal is 45o or less R is 12d or less		A + E + 18d	A + E + 22d	A + E + 26d
T		If angle with horizontal is 45o or less		A + B + C + 9d -2(R + d)	A + B + C + 11d -2(R + d)	A + B + C + 13d -2(R + d)
U		L + 2H		L + 18d	L + 22d	L + 26d
V		A + E + 2S + 2H + d		A + E + 2S + 18d + d	A + E + 2S + 22d + d	A + E + 2S + 26d + d
W		A + E + 3S + 2d + B +H		A + E + 3S + 2d + 6d + 9d	A + E + 3S + 2d + 7d + 11d	A + E + 3S + 2d + 8d + 13d
X		A + E + C + 2H - √ ( C2 - D2 ) -D		A + E + C + 18d - √ ( C2 - D2 ) -D	A + E + C + 22d - √ ( C2 - D2 ) -D	A + E + C + 26d - √ ( C2 - D2 ) -D
Y		E + 2(A - D + C + H)		E + 2(A - D + C + 9d)	E + 2(A - D + C + 11d)	E + 2(A - D + C + 13d)
Z		L + 2C + 2H		L + 2C + 18d	L + 2C + 22d	L + 2C + 26d
AA		2C + 2E1 + L + 2H		2C + 2E1 + L + 18d	2C + 2E1 + L + 22d	2C + 2E1 + L + 26d
AB		2 (A + E) + 24d		2 (A + E) + 24d	2 (A + E) + 24d	2 (A + E) + 24d
AC		2 (A + E) + 20d		2 (A + E) + 20d	2 (A + E) + 20d	2 (A + E) + 20d
AD		2A + E + 28d		2A + E + 28d	2A + E + 28d	2A + E + 28d
AE		2A + E + C +12d + B		2A + E + C +12d + 6d	2A + E + C +12d + 7d	2A + E + C +12d + 8d
AF		L	Straight	L	L	L