How To Calculate Column Quantity For Steel ?





Schedule of column and footing


Sr.
No.
Column no.
Footing size
Footing reinforcement
D/d
(depth)
Below plinth/column
Stilt floor column
First floor
Second floor
Rings/stirrups


1.
C1,C2,C3
2.8 x 2.8
Ф 16 @ 150 c/c
0.8
0.3 x 0.9
0.3 x 0.800
0.3 x 0.750
0.23 x 0.600
Ф 8 @ 100 c/c
2.
C4,C5,C6
2.6 x 2.8
Ф 20 @ 200 c/c
0.6
0.3 x 0.8
0.3 x 0.8
0.3 x 0.75
0.3 x 0.700
Ф 8 @ 100 c/c
3.
C7,C8,C9,C10,C11
3.2 x 3.2
Ф 25 @ 250 c/c
0.9
0.3 x 1
0.3 x 0.9
0.3 x 0.850
0.3 x 0.700
Ф 12 @ 175 c/c
4.
C12,C13,C14
2.2 x 2.5
Ф 20 @ 175 c/c
0.7
0.3 x 0.750
0.3 x 0.700
0.3 x 0.650
0.3 x 0.600
Ф 8 @ 100 c/c
5.
C15,C16
1.6 x 1.6
Ф 12 @ 125 c/c
0.6
0.23 x 0.600
0.23 x 0.550
0.23 x 0.500
0.20 x 0.475
Ф 10 @ 125 c/c



Column no. 1,2,3

Stilt Floor

Column size = 0.3 x 0.800

Main bar steel
16 dia. 8 no.
Stirrups 10 dia @ 100 c/c


Main bar steel 16 dia. 8 no.

( 3 + 40 d ) x no. of bars

[ 3 + (40 x 16 mm) ] x 8 no. of bar

16 dia bar = 29.12 meter


Stirrups 8 dia. 100 c/c

506.66 + 506.66 + 220 + 220 – 5 d + 10 d + 10 d

1453.32 – 5 (8mm) + 10 (8mm) + 10 (8mm)

1573.32 mm

1.57 meter


No. of stirrups = length of bar / c/c distribution bars

Therefore, no. of stirrups = 3/100mm = 3/0.100 meter

= 30 add one extra bar

i.e. 31


8 dia. Bar = 1.57 x 31 = 48.67 meter

For 2 rings

48.67 x 2

8 dia. Bar = 97.34 meter


Master ring 8 dia. 100 c/c

760 + 760 + 220 + 220 – 5 d + 10 d + 10 d

1960 – 5 (8mm) + 10 (8mm) + 10 (8mm)

2080 mm

2.08 meter


No. of stirrups = length of bar / c/c distribution bars

Therefore, no. of stirrups = 3 / 100mm = 3 / 0.100 meter

= 30 add one bar extra

i.e 31

8 dia. Bar = 2.08 x 31 = 64.48 meter


First floor

Column size = 0.3 x 0.750

Main bar steel 16 dia. 8 no.

(3 + 40 d) x no. of bar

[ 3 + 40 (16mm) ] x 8 no. of bar

16 dia. Bar = 29.12 meter


Stirrups 8 dia. 100 c/c

220 + 220 + 446.66 + 446.66 – 5 d + 10 d + 10 d

1333.32 – 5 (8mm) + 10 (8mm) + 10 (8mm)

1453.32 mm

1.45 meter


No. of stirrups = 3 / 100mm

= 3 / 0.100meter

= 30 add one bar extra i.e 31

8 dia. Bar = 1.45 x 31 = 45.05 meter

For 2 rings

= 45.05 x 2
= 90.10 meter


Master ring 8 dia.

670 + 670 + 220 +220 – 5 d + 10 d + 10 d

1780 – 5 (8mm) + 10 (8mm) + 10 (8mm)

1900 mm

1.9 meter


No. of stirrups = 3 / 100mm = 3 / 0.100 meter

= 30 add one bar extra

i.e 31

8 dia. Bar = 1.9 x 31 = 58.9 meter


Second Floor

Column size = 0.23 x 0.600

Main bar steel 16 dia. 8 no.

3 + 40 d

3 + 40 (16mm)

3.64 meter

16 dia. 8 no. = 3.64 x 8 = 29.12 meter


Stirrups 8 dia. 100 c/c

346.66 + 346.66 + 150 + 150 – 5 d + 10 d + 10 d

993.33 – 5 (8mm) + 10 (8mm) + 10 (8mm)

1113.32 mm

1.11 meter


No. of stirrups = 3 / 100 mm = 3/0.100 meter

= 30 add one bar extra

i.e 31

8 dia. Bar = 1.11 x 31 = 34.41 meter


For 2 rings

= 34.41 x 2
= 68.82 meter


Master ring 8 dia.

520 + 520 + 150 + 150 – 5 d + 10 d + 10 d

1340 – 5 (8mm) + 10 (8mm) + 10 (8mm)

1460 mm

1.46 meter

No. of stirrups = 3 / 100 mm = 3 / 0.100 meter

= 30 add one bar extra

i.e 31


8 dia. Bar = 1.46 x 31 = 45.26 meter



Column no. 4,5,6

Stilt Floor

Column size = 0.3 x 0.750

Main bar steel
16 dia. 8 no.
Stirrups 8 dia @ 100 c/c


Main bar steel 16 dia. 8 no.

( 3 + 40 d ) x no. of bars

[ 3 + (40 x 16 mm) ] x 8 no. of bar

16 dia bar = 29.12 meter


Stirrups 8 dia. 100 c/c

446.66 + 446.66 + 220 + 220 – 5 d + 10 d + 10 d

1333.32 – 5 (8mm) + 10 (8mm) + 10 (8mm)

1453.32 mm

1.45 meter


No. of stirrups = length of bar / c/c distribution bars

Therefore, no. of stirrups = 3/100mm = 3/0.100 meter

= 30 add one extra bar

i.e. 31

8 dia. Bar = 1.45 x 31 = 44.45 meter


For 2 rings

44.45 x 2
8 dia. Bar = 89.9 meter


Master ring 8 dia. 100 c/c

670 + 670 + 220 + 220 – 5 d + 10 d + 10 d

1780 – 5 (8mm) + 10 (8mm) + 10 (8mm)

1900 mm

1.9 meter


No. of stirrups = length of bar / c/c distribution bars

Therefore, no. of stirrups = 3 / 100mm = 3 / 0.100 meter

= 30 add one bar extra

i.e 31

8 dia. Bar = 1.9 x 31 = 58.9 meter


First floor

Column size = 0.3 x 0.700

Main bar steel 16 dia. 8 no.

(3 + 40 d) x no. of bar

[ 3 + 40 (16mm) ] x 8 no. of bar

16 dia. Bar = 29.12 meter


Stirrups 8 dia. 100 c/c

 413.32 + 413.32 + 220 + 220 – 5 d + 10 d + 10 d

1266.64 – 5 (8mm) + 10 (8mm) + 10 (8mm)

1386.64 mm

1.38 meter


No. of stirrups = 3 / 100mm

= 3 / 0.100meter

= 30 add one bar extra i.e 31

8 dia. Bar = 1.38 x 31 = 42.78 meter


For 2 rings

= 42.78 x 2
= 85.86 meter


Master ring 8 dia.

620 + 620 + 220 +220 – 5 d + 10 d + 10 d

1680 – 5 (8mm) + 10 (8mm) + 10 (8mm)

1800 mm

1.8 meter


No. of stirrups = 3 / 100mm = 3 / 0.100 meter

= 30 add one bar extra

i.e 31

8 dia. Bar = 1.8 x 31 = 55.8 meter


Second Floor

Column size = 0.2 x 0.650

Main bar steel 16 dia. 8 no.

3 + 40 d

3 + 40 (16mm)

3.64 meter

16 dia. 8 no. = 3.64 x 8 = 29.12 meter


Stirrups 8 dia. 100 c/c

380 + 380 + 120 + 120 – 5 d + 10 d + 10 d

1000 – 5 (8mm) + 10 (8mm) + 10 (8mm)

1120 mm

1.12 meter


No. of stirrups = 3 / 100 mm = 3/0.100 meter

= 30 add one bar extra

i.e 31

8 dia. Bar = 1.11 x 31 = 34.72 meter

For 2 rings
= 34.72 x 2
= 69.44 meter


Master ring 8 dia.

570 + 570 + 120 + 120 – 5 d + 10 d + 10 d

1380 – 5 (8mm) + 10 (8mm) + 10 (8mm)

1500 mm

1.5 meter

No. of stirrups = 3 / 100 mm = 3 / 0.100 meter

= 30 add one bar extra

i.e 31


8 dia. Bar = 1.5 x 31 = 46.5 meter



Column no. 7,8,9,10,11

Stilt Floor

Column size = 0.3 x 0.9

Main bar steel
25 dia. 8 no.
Stirrups 12 dia @ 175 c/c


Main bar steel 25 dia. 8 no.

( 3 + 40 d ) x no. of bars

[ 3 + (40 x 25 mm) ] x 8 no. of bar

25 dia bar = 32 meter


Stirrups 12 dia. 175 c/c

546.66 + 546.66 + 220 + 220 – 5 d + 10 d + 10 d

1533.32 – 5 (12mm) + 10 (12mm) + 10 (12mm)

1713.32 mm

1.71 meter


No. of stirrups = length of bar / c/c distribution bars

Therefore, no. of stirrups = 4/175mm = 4/0.175 meter

= 22.85 say 23 add one extra bar

i.e. 24

8 dia. Bar = 1.71 x 24 = 41.04 meter

For 2 rings

41.04 x 2
8 dia. Bar = 82.08 meter


Master ring 12 dia. 175 c/c

820 + 820 + 220 + 220 – 5 d + 10 d + 10 d

2080 – 5 (12mm) + 10 (12mm) + 10 (12mm)

2260 mm

2.26 meter


No. of stirrups = length of bar / c/c distribution bars

Therefore, no. of stirrups = 4 / 175mm = 4 / 0.175 meter

= 22.85 say 23 add one bar extra

i.e 24

12 dia. Bar = 2.26 x 24 = 54.24 meter


First floor

Column size = 0.3 x 0.850

Main bar steel 25 dia. 8 no.

(3 + 40 d) x no. of bar

[ 3 + 40 (25mm) ] x 8 no. of bar

25 dia. Bar = 32 meter


Stirrups 12 dia. 175 c/c

513.32 + 513.32 + 220 + 220– 5 d + 10 d + 10 d

1466.64 – 5 (12mm) + 10 (12mm) + 10 (12mm)

1646.64 mm

1.64 meter


No. of stirrups = 4 / 175mm

= 4 / 0.175 meter

= 22.85 say 23 add one bar extra i.e 24

12 dia. Bar = 1.64 x 24 = 39.36 meter


For 2 rings

= 39.36 x 2
= 78.72 meter


Master ring 12 dia. 175 c/c

770 + 770 + 220 +220 – 5 d + 10 d + 10 d

1780 – 5 (12mm) + 10 (12mm) + 10 (12mm)

2160 mm

2.16 meter


No. of stirrups = 4 / 175mm = 3 / 0.175 meter

= 22.85 say 23 add one bar extra

i.e 24

12 dia. Bar = 2.16 x 24 = 51.84 meter

For 2 rings

51.81 x 2
= 103.68 meter


Second Floor

Column size = 0.300 x 0.700

Main bar steel 25 dia. 8 no.

3 + 40 d
3 + 40 (25mm)
4 meter

25 dia. 8 no. = 4 x 8 = 32 meter


Stirrups 12 dia. 175 c/c

413.32 + 413.32 + 220 + 220 – 5 d + 10 d + 10 d

1266.64 – 5 (12mm) + 10 (12mm) + 10 (12mm)

1446.64 mm

1.44 meter


No. of stirrups = 4 / 175 mm = 3/0.175 meter

= 22.85 say 23 add one bar extra

i.e 24

12 dia. Bar = 1.44 x 24 = 34.56 meter

For 2 rings

= 34.56 x 2
= 69.12 meter


Master ring 12 dia. 175 c/c

620 + 620 + 220 + 220 – 5 d + 10 d + 10 d

1680 – 5 (12mm) + 10 (12mm) + 10 (12mm)

1860 mm

1.86 meter

No. of stirrups = 4 / 175 mm = 4 / 0.175 meter

= 22.85 say 23 add one bar extra

i.e 24


12 dia. Bar = 1.86 x 24 = 44.64 meter



Column no. 12,13,14

Stilt Floor

Column size = 0.3 x 0.700

Main bar steel
20 dia. 8 no.
Stirrups 8 dia @ 100 c/c


Main bar steel 20 dia. 8 no.

( 3 + 40 d ) x no. of bars

[ 3 + (40 x 20 mm) ] x 8 no. of bar

20 dia bar = 30.4 meter


Stirrups 8 dia. 100 c/c

413.32 + 413.32 + 220 + 220 – 5 d + 10 d + 10 d

1266.64 – 5 (8mm) + 10 (8mm) + 10 (8mm)

1386.64 mm

1.38 meter


No. of stirrups = length of bar / c/c distribution bars

Therefore, no. of stirrups = 4/100mm = 4/0.100 meter

= 40 add one extra bar

i.e. 41

8 dia. Bar = 1.38 x 41 = 56.58 meter

For 2 rings

56.58 x 2
8 dia. Bar = 113.16 meter


Master ring 8 dia. 100 c/c

620 + 620 + 220 + 220 – 5 d + 10 d + 10 d

1680 – 5 (8mm) + 10 (8mm) + 10 (8mm)

1800 mm

1.8 meter


No. of stirrups = length of bar / c/c distribution bars

Therefore, no. of stirrups = 4 / 100mm = 4 / 0.100 meter

= 40 add one bar extra

i.e 41

8 dia. Bar = 1.8 x 41 = 73.8 meter


First floor

Column size = 0.3 x 0.650

Main bar steel 20 dia. 8 no.

(3 + 40 d) x no. of bar

[ 3 + 40 (20mm) ] x 8 no. of bar

20 dia. Bar = 30.4 meter


Stirrups 8 dia. 100 c/c

380 + 380 + 220 + 220 – 5 d + 10 d + 10 d

1200 – 5 (8mm) + 10 (8mm) + 10 (8mm)

1320 mm

1.32 meter


No. of stirrups = 4 / 100mm

= 4 / 0.100meter

= 40 add one bar extra i.e 41

8 dia. Bar = 1.32 x 41 = 54.12 meter


For 2 rings

= 54.12 x 2
= 108.24 meter


Master ring 8 dia.

870 + 870 + 220 +220 – 5 d + 10 d + 10 d

1580 – 5 (8mm) + 10 (8mm) + 10 (8mm)

1700 mm

1.7 meter


No. of stirrups = 4 / 100mm = 4 / 0.100 meter

= 40 add one bar extra

i.e 41

8 dia. Bar = 1.7 x 41 = 69.7 meter


Second Floor

Column size = 0.3 x 0.600

Main bar steel 20 dia. 8 no.

3 + 40 d

3 + 40 (20mm)

3.8 meter

20 dia. 8 no. = 3.8 x 8 = 30.4 meter


Stirrups 8 dia. 100 c/c

346.66 + 346.66 + 220 + 220 – 5 d + 10 d + 10 d

1132.99 – 5 (8mm) + 10 (8mm) + 10 (8mm)

1252.99 mm

1.25 meter

No. of stirrups = 4 / 100 mm = 4 /0.100 meter

= 40 add one bar extra

i.e 41

8 dia. Bar = 1.25 x 41 = 51.25 meter

For 2 rings
= 51.25 x 2
= 102.5 meter


Master ring 8 dia.

520 + 520 + 220 + 220 – 5 d + 10 d + 10 d

1480 – 5 (8mm) + 10 (8mm) + 10 (8mm)

1600 mm

1.6 meter

No. of stirrups = 4 / 100 mm = 4 / 0.100 meter

= 40 add one bar extra

i.e 41


8 dia. Bar = 1.6 x 41 = 65.6 meter



Column no. 15,16

Stilt Floor

Column size = 0.230 x 0.550

Main bar steel
32 dia. 8 no.
Stirrups 10 dia @ 125 c/c


Main bar steel 32 dia. 8 no.

( 3 + 40 d ) x no. of bars

[ 3 + (40 x 32 mm) ] x 8 no. of bar

32 dia bar = 34.24 meter


Stirrups 10 dia. 125 c/c

470 + 470 + 150 + 150 – 5 d + 10 d + 10 d

1240 – 5 (10mm) + 10 (10mm) + 10 (10mm)

1390 mm

1.39 meter


No. of stirrups = length of bar / c/c distribution bars

Therefore, no. of stirrups = 4.28/125mm = 4.28/0.125 meter

= 34.24 say 35 add one extra bar

i.e. 36

10 dia. Bar = 1.39 x 36 = 50.04 meter

For 2 rings

50.04 x 2
10 dia. Bar = 100.08 meter


Master ring 10 dia. 125 c/c

470 + 7470 + 150 + 150 – 5 d + 10 d + 10 d

1240 – 5 (10mm) + 10 (10mm) + 10 (10mm)

1390 mm

1.39 meter


No. of stirrups = length of bar / c/c distribution bars

Therefore, no. of stirrups = 4.28 / 125mm = 3 / 0.125 meter

= 34.24 say 35 add one bar extra

i.e 36

10 dia. Bar = 1.39 x 36 = 50.04 meter


First floor

Column size = 0.3 x 0.500

Main bar steel 32 dia. 8 no.

(3 + 40 d) x no. of bar

[ 3 + 40 (32mm) ] x 8 no. of bar

32 dia. Bar = 34.24 meter


Stirrups 10 dia. 125 c/c

280 + 280 + 220 + 220 – 5 d + 10 d + 10 d

1000 – 5 (10mm) + 10 (10mm) + 10 (10mm)

1150 mm

1.15 meter


No. of stirrups = 4.28 / 125mm

= 4.28 / 0.125meter

= 34.25 say 35 add one bar extra i.e 36

10 dia. Bar = 41.4 x 36 = 41.4 meter


For 2 rings

= 41.4 x 2
= 82.8 meter


Master ring 10 dia. 125 c/c

420 + 420 + 220 +220 – 5 d + 10 d + 10 d

1780 – 5 (10mm) + 10 (10mm) + 10 (10mm)

1430 mm

1.43 meter


No. of stirrups = 4.28 / 125 mm = 4.28 / 0.125 meter

= 34.25 say 35 add one bar extra

i.e 36

10 dia. Bar = 1.43 x 36 = 51.48 meter


Second Floor

Column size = 0.200 x 0.475

Main bar steel 32 dia. 8 no.

3 + 40 d

3 + 40 (32mm)

4.28 meter

32 dia. 8 no. = 4.28 x 8 = 34.24 meter


Stirrups 10 dia. 125 c/c

395 + 385 + 120 + 120 – 5 d + 10 d + 10 d

1030 – 5 (10mm) + 10 (10mm) + 10 (10mm)

1180 mm

1.18 meter

No. of stirrups = 4.28 / 125 mm = 4.28/0.125 meter

= 34.25 say 35 add one bar extra

i.e 36

10 dia. Bar = 1.18 x 36 = 42.48 meter

For 2 rings

= 42.48 x 2
= 84.96 meter


Master ring 10 dia. 125 c/c

395 + 395 + 120 + 120 – 5 d + 10 d + 10 d

1030 – 5 (10mm) + 10 (10mm) + 10 (10mm)

1180 mm

1.18 meter

No. of stirrups = 4.28 / 125 mm = 4.28 / 0.125 meter

= 34.25 say 35 add one bar extra

i.e 36


8 dia. Bar = 1.18 x 36 = 42.48 meter