Steel Work

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M Khurram Mahmood Gondal (SQS) Faislabad

Steel Work

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Example 1: Calculate the weight of one foot long steel which have dia:

Solution 1:

Solution 2:

Example 2: Calculate the weight of one foot long steel for the following shapes:

1- Round Section 3- Patti Section2- Square Section 4- (T) Section

5- (L)-Angle Section 6- Channel Section 7- (I) Section 8- (Z) Section

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Solution : wt/ft = Area(in sft) X 222

1. Round Section:

2. Square Section:

3. Patti Section:

4. (T) Section:

5. (L) Section:

6. Channel Section:

7. (I) Section:

8. (Z) Section:

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Bar Bending Schedule or Schedule of Bars

A table (performa) that showing shape of bar, No.s of bars, diameter of bar. Cut

length of bar, weight per foot and total weight ext. is known as Bar Bending

Schedule.

Serial No.

Shape / Description Dia Cut

Length No.

Total Length

Wt/ft Total wt.

Remarks

Standard Hook or 180o Hook

Conditions of Hook

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Formulas:

Example: Prepare the bar bending schedule for the following drawing:

Solution:

Serial No.


Length No.

Total Length

Wt/ft Total wt.

Remarks

1 Main steel

10.95 ft 2 21.90 ft 0.68 kg 14.9 kg ***

6



Solution:

Main Steel:

1.

2.

3.

Distribution Steel:

1.

2.

3.

24' X 10'

Distribution Steel3

8" dia @ 9" c/c

Main Steel1

2" dia @ 6" c/c

9"

7


Bar Bending Schedule

Serial No.

Shape / Description

Dia Cut

Length No.

Total Length

Wt. Total wt. Remarks

lb kg lb kg

1 Main steel

1/2" 12.167 52 632.68 0.67 0.3 423.90 189.81 ***

2

Distribution steel

3/8" 25.98 16 415.68 0.375 0.17 155.88 70.67 ***


Solution:

Main Steel:

1.

2.

3.

Distribution Steel:

1.

2.

3.

18' X 15'

13.5' wall

Distribution Bars1

2" @ 9" c/c

Main Bars5

8" @ 4 1

2" c/c

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Serial No.

Shape / Description

Dia Cut

Length No.

Total Length

Wt. Total wt. Remarks

lb kg lb kg

1 Main steel

5/8" 18.1 55 995.50 1.04 0.47 1035.32 467.89 ***

2

Distribution steel

1/2" 20.92 24 502.08 0.67 0.3 336.39 150.62 ***


Solution:

Main Steel:

1.

2.

3.

Distribution Steel:

1.

2.

6 X 5 m

30 cm wall

Distribution Bars

12mm @ 20cm c/c

Main Bars

16mm @ 10cm c/c

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3.


Serial No.


Length No.

Total Length

Wt./m Total wt. Remarks

(kg) (kg)

1 Main steel

16mm 5.862 67 392.75 1.58 620.5 ***

2

Distribution steel

12mm 6.79 29 196.91 0.89 175.25 ***

Example: Prepare the bar bending schedule for the following drawing of beam:

Solution:

Main Bars 7/8 :

1.

2.

Main Bars 3/4 :

1.

2.

Hanger Bars 5/8 :

20'

13.5"

Hanger bars

2 Nos. 5 8" dia

cover 1"

Main bars

2 Nos. 7 8" dia

& 2 Nos. 3 4" dia

Long Section of the Beam

12"

24"

Hanger Bars

2 - 5 8"

Main Bars

2 - 7 8"

2 - 3 4" dia bars

Stirrups3

8" dia @ 6" c/c

Cover 1"

X-Section of the Beam

10"

22"

10


1.

2.

Stirrups 3/8 :

1.

2.

3.


Serial No.

Shape / Description

Dia Cut

Length No.

Total Length


lb kg lb kg

1 Main bars 7/8" dia

7/8" 23.38 2 46.76 2.04 0.93 95.39 43.49 ***

2 Main bars 3/4" dia

3/4" 23.2 2 46.40 1.5 0.68 69.60 31.55 ***

3 Hanger bars

5/8" 23.02 2 46.04 1.04 0.47 47.88 21.64 ***

4

Stirrups

3/8" 4.23 45 190.35 0.375 0.17 71.38 32.36 ***


10"

22"

6m

30cm

Hanger bars

2 Nos. 16mm dia

cover 2.5cm

Main bars

2 Nos. 22mm dia

& 2 Nos. 18mm dia


Stirrups

8mm dia @

15cm c/c30cm

60cm

Hanger Bars

2 -16mm

Main Bars

2 - 22mm

2 -18mm dia

bars

Stirrups

8mm dia @ 15cm c/c

Cover 2.5cm


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Solution:

Main Bars 22mm :

1.

2.

Main Bars 18mm :

1.

2.

Hanger Bars 16mm :

1.

2.

Stirrups 8mm :

1.

2.

3.


Serial No.


Length No.

Total Length


(kg) (kg)

1 Main bars

22mm 6.94 2 13.88 2.99 41.50 ***

2 Main bars

18mm 6.87 2 13.74 2 27.48 ***

3 Hanger bars

16mm 6.84 2 13.68 1.58 21.61 ***

4

Stirrups

8mm 1.74 45 78.30 0.39 30.54 ***

10"

22"

12


Note:

(if the bar have two bents)

(if the bar have one bent)

( )


Solution:

Main Bars 1 dia :

1.

2.

Bent up Bars 3/4 dia :

1.

2.

Hanger Bars 5/8 :

L=24'


12" X 12"

Column

Hanger bars

2 Nos. 5 8" dia

cover 1"

Main bars

2 Nos. 1" dia

Stirrups3

8" dia @ 9" c/c

Bent up bars

2 Nos. 3 4" dia

L/7

12"

28"

Hanger Bars

2 - 5 8"

Main Bars

2 - 1"

2 - 3 4" dia barsbent up

Stirrups3

8" dia @ 6" c/c

Cover 1"


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1.

2.

Stirrups 3/8 :

1.

2.

3.


S. No.


Length No

Total Length

Wt./ft Total wt. Remarks

lb kg lb kg

1 Main bars 1" dia

1" 27.33 2 54.66 2.67 1.21 145.94 66.14 ***

2

Bent up bars 3/4" dia

3/4" 28.9 2 57.80 1.5 0.68 86.70 39.30 ***

3 Hanger bars

5/8" 26.77 2 53.54 1.04 0.47 55.68 25.16 ***

4

Stirrups

3/8" 6.56 36 236.16 0.37

5 0.17 88.56 40.15 ***


L=20'

12" X 12"

Column

Hanger bars

2 Nos. 5 8" dia

cover 1"

Main bars

2 Nos. 1" dia

Stirrups3

8" dia @ 9" c/c

2 Nos. 3 4" diaBent up

L=20'

L/5L/5

L/3L/3

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Solution:

Main Bars 1 dia :

1.

2.

Bent up Bars 3/4 dia :

1.

2.

Hanger Bars 5/8 :

1.

2.

Stirrups 3/8 :

1.

2.

3.


S. No.

Shape / Description Dia C/L No. Total

Length


lb kg lb kg

1 Main bars 1" dia

1" 44.33 2 88.66 2.67 1.21 236.72 107.28 ***

2 Bent up bars 3/4" dia

3/4" 30.69 4 122.76 1.5 0.68 184.14 83.48 ***

12"

28"

Hanger Bars

2 - 5 8"

Main Bars

2 - 1"

2 - 3 4" dia barsbent up

Stirrups3

8" dia @ 6" c/c

Cover 1"

2 Nos.

2 Nos.

15


3 Hanger bars

5/8" 43.77 2 87.54 1.04 0.47 91.04 41.14 ***

4

Stirrups

3/8" 6.56 58 380.48 0.375 0.17 142.68 64.68 ***

Example: Prepare the bar bending schedule for the following drawing of footing:

Solution:

Footing Bars 3/4 dia :

1.

2.

3.

Dowel Bars 5/8 dia :

34" dia @ 8" c/c

bothway

2.5" Cover

9" bend

Dowel Bars5

8" dia 6 bars

Ties3

8" dia @ 6" c/c

Main Bars1

2" dia 6 bars

1.5" Cover

12" dia column

1" Cover

6" bemd

10"

2'-6"

2' Lap or

30 dia of bar

12'

X-Section of Column

1'

7.5" Square footing

Plan of Column

16


1.

2.

Main Bars 1/2 dia :

1.

2.

Ties 3/8 dia:

1.

2.

3.


S. No.

Shape / Description Dia C/L No. Total

Length


lb kg lb kg

1 Footing Bars 3/4" dia

3/4" 8.2 24 196.80 1.5 0.68 295.20 133.82 ***

2

Dowel Bars 5/8" dia

5/8" 5.75 6 34.50 1.04 0.47 35.88 16.22 ***

3

Main Bars 1/2" dia

1/2" 14.58 6 87.48 0.67 0.3 58.61 26.24 ***

4

Ties 3/8" dia

3/8" 2.9 29 84.10 0.375 0.17 31.54 14.30 ***

Steel Work

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