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 It is a process of cutting and bending
reinforcement bars into shapes suggested by
a structural engineer.
 It is a comprehensive list that describes the
location, mark, type, size, length, number
and bending details of each bar in a
reinforcement drawing of a structure. The
process of listing is called scheduling.
A BBS provides us with
 Member identification
 Bar Mark
 Shape of bending
 Diameter of Bar
 Length of each Bar
 Total no. of Bars
 Total length
 Weight
 If available the cutting and bending can be
done elsewhere (example: in a factory) and
transported to a site which results in faster
execution and reduces the construction time.
 It improves quality control as reinforcement
is provided as per BBS.
 It provides better estimation of steel
requirement.
 Identification of Members (Steel Bars)
Each type of bar usually has a bar mark/designation.
 Counting each type of bar
- For a small concrete structure, we can count it
manually.
- For a big slab structure, to calculate the no. of bars
we need to find the width, clear cover and c/c (center
to center) spacing between bars.
No. of bars =
(𝑊𝑖𝑑𝑡ℎ 𝑜𝑓 𝑐𝑜𝑛𝑐𝑟𝑒𝑡𝑒 – 2∗𝑐𝑙𝑒𝑎𝑟 𝑐𝑜𝑣𝑒𝑟)
𝑐/𝑐 𝑠𝑝𝑎𝑐𝑖𝑛𝑔 𝑏𝑒𝑡𝑤𝑒𝑒𝑛 𝑏𝑎𝑟𝑠
 Calculating the length of Rebar
The total length of each member bar is calculated.
We shouldn’t forget to add the development length
or anchorage length.
 Calculating the unit weight of individual bar
The unit weight of individual bar is usually calculated
by the formula
Unit wt. of bar with diameter D =
𝐷^2
162
kg/m
 Calculation of total weight
We can find out the total weight of steel required by
simply using the formula
Wt. of a bar = (No. of bars * Length * Unit weight) kg
 Prepare BBS for different RCC elements
separately. Example: Column, Beam, Slab,
Footing, etc.
 It is preferable that the bars are listed in the
schedule in a numerical order for
convenience.
 It should be provided separately not as a part
of detailed reinforcement drawing.
For EXAMPLE AND EXCEL PROGRAMME
VISIT
http://ultimatecivilengineer.blogspot.com/

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Bar bending schedule

  • 1.
  • 2.  It is a process of cutting and bending reinforcement bars into shapes suggested by a structural engineer.  It is a comprehensive list that describes the location, mark, type, size, length, number and bending details of each bar in a reinforcement drawing of a structure. The process of listing is called scheduling.
  • 3. A BBS provides us with  Member identification  Bar Mark  Shape of bending  Diameter of Bar  Length of each Bar  Total no. of Bars  Total length  Weight
  • 4.  If available the cutting and bending can be done elsewhere (example: in a factory) and transported to a site which results in faster execution and reduces the construction time.  It improves quality control as reinforcement is provided as per BBS.  It provides better estimation of steel requirement.
  • 5.  Identification of Members (Steel Bars) Each type of bar usually has a bar mark/designation.  Counting each type of bar - For a small concrete structure, we can count it manually. - For a big slab structure, to calculate the no. of bars we need to find the width, clear cover and c/c (center to center) spacing between bars. No. of bars = (𝑊𝑖𝑑𝑡ℎ 𝑜𝑓 𝑐𝑜𝑛𝑐𝑟𝑒𝑡𝑒 – 2∗𝑐𝑙𝑒𝑎𝑟 𝑐𝑜𝑣𝑒𝑟) 𝑐/𝑐 𝑠𝑝𝑎𝑐𝑖𝑛𝑔 𝑏𝑒𝑡𝑤𝑒𝑒𝑛 𝑏𝑎𝑟𝑠
  • 6.  Calculating the length of Rebar The total length of each member bar is calculated. We shouldn’t forget to add the development length or anchorage length.  Calculating the unit weight of individual bar The unit weight of individual bar is usually calculated by the formula Unit wt. of bar with diameter D = 𝐷^2 162 kg/m  Calculation of total weight We can find out the total weight of steel required by simply using the formula Wt. of a bar = (No. of bars * Length * Unit weight) kg
  • 7.  Prepare BBS for different RCC elements separately. Example: Column, Beam, Slab, Footing, etc.  It is preferable that the bars are listed in the schedule in a numerical order for convenience.  It should be provided separately not as a part of detailed reinforcement drawing.
  • 8. For EXAMPLE AND EXCEL PROGRAMME VISIT http://ultimatecivilengineer.blogspot.com/