INTRODUCTION
Bar Bending Schedule is a summary of the reinforcement in a tabular formm which includes the following information. Bar bending schedules are very important out of detailing and should give the following information:Identification of the structural
member(s),
- Position of the bars in the
structure,
- The bar mark,
- The diameter or size of bar,
- The number of bars of one type in
each structural member,
- The total number of bars of each
type,
- The total straight length of the
bar,
- The shape and bending dimensions
of the bar,
- The details of bar chairs can also
be included,
- Remarks, if any.
The Various Standard Size of round steel Bars along with Their weight are Shown in Table.
Diameter of Bars
Weight of Bar(kg/m)
6
0.22
8
0.39
10
0.62
12
0.89
14
1.2
16
1.58
18
2
20
2.47
22
2.98
25
3.85
28
4.84
32
6.32
36
8
40
9.87
Measurementof Bending Dimensions of Bars For R.C.C.
SAMPLE OF BBS
Numerical Examples :
BEAM
CALCULATION Longitudinal bar:L= total length-clear cover+hook =6000-2*25+9*16*2 =5662mmStirrup: =2a+2b+Hook a=depth-clear cover -Dia of bar b=width-clear cover -Dia of bar a=300-2*25-2*8 =234mm
Identification of the structural member(s),
- Position of the bars in the structure,
- The bar mark,
- The diameter or size of bar,
- The number of bars of one type in each structural member,
- The total number of bars of each type,
- The total straight length of the bar,
- The shape and bending dimensions of the bar,
- The details of bar chairs can also be included,
- Remarks, if any.
|
Diameter of Bars |
Weight of Bar(kg/m) |
|
6 |
0.22 |
|
8 |
0.39 |
|
10 |
0.62 |
|
12 |
0.89 |
|
14 |
1.2 |
|
16 |
1.58 |
|
18 |
2 |
|
20 |
2.47 |
|
22 |
2.98 |
|
25 |
3.85 |
|
28 |
4.84 |
|
32 |
6.32 |
|
36 |
8 |
|
40 |
9.87 |
b=200-2*25-2*8 =134mmhook= 2*12*8 =192mmNo of Stirrup= (distance/spacing )+1 =(5600/100)+1 =57 No
b=200-2*25-2*8
=134mm
hook= 2*12*8
=192mm
No of Stirrup= (distance/spacing )+1
=(5600/100)+1
=57 No
Reference:- is.sp.34.1987 Handbook on Concrete Reinforcement and Detailing
- is.sp.34.1987 Handbook on Concrete Reinforcement and Detailing
- is.2502.1963Code of Practice for Bending and Fixing of Bars for Concrete Reinforcement
- is.2502.1963Code of Practice for Bending and Fixing of Bars for Concrete Reinforcement
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ReplyDeleteNice post — the detail in your Bar Bending Schedule (BBS) explanation is precise and very helpful for engineers and site supervisors. You’ve covered how to tabulate bar marks, sizes, shapes, lengths and weights in a clear way. For readers looking for Bar Bending services in Hyderabad, we provide expert reinforcement bending, BBS preparation, and on-site execution with a focus on accuracy and structural integrity.
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