How do you calculate Bar Bending Schedule for footing?
Steps involved in calculating the bar bending schedule of a footings:-
- Deduct the concrete cover to find the dimensions of bars.
- Find the Length of single X Bars & Y Bars.
- Find the total length of X bars.
- Calculate the weight of steel required per 1m.
- Calculate the total number of 12m bars required.
How is bar bending calculated?
Let’s Get started. First of all, Bar is any type of rebar which is used as a reinforcement in RCC. The bar may be a Mild Steel bar or HYSD bar or TMT Bar….
| Bar Bending Member | Percentage |
|---|---|
| Slab | 1% of total volume of concrete |
| Beam | 2% of of total volume of concrete |
| Column | 2.5% of total volume of concrete |
How do you calculate the number of bars in a footing?
Details Obtained from the Drawing
- Length of Footing = X = 2m.
- Breadth of Footing = Y = 1.6m.
- Height of the footing (Thickness) = h =0.3m.
- Diameter of the Main reinforcement bars = dm= 12mm.
- Diameter of Distribution Reinforcement Bars = dd =12mm.
- Spacing of Main reinforcement bars = sm = 150mm c/c.
How bar bending schedule is prepared?
Step by Step Preparation of Bar Bending Schedule.
- Identification of Members (Steel Bars)
- Step 2 Count the Number of bars.
- Step 3: Calculate the length of Reinforcement bars.
- Step 4: Calculate the unit weight of Reinforcement Bar.
- Step 5: Calculate the Weight of particular Shape of Bar.
How do you calculate bar spacing?
Minimum spacing between two bars can be taken as approximately 50–75 mm. According to cl. 26.5. 1.5 of IS 456, the maximum spacing of the stirrups = 0.75 d = 0.75 (450) = 337.5 mm = 300 mm (say).
What is a bending schedule?
Bar bending schedule or schedule of bars is a tabular representation of reinforcement bar. It is generally represented for each type of R.C.C work. Bar bending schedule generally describes the particulars of bars, shape of bending with sketches and total length and weight of the bars along with their numbers.
How is column Bar Bending Schedule calculated?
Bar Bending Schedule of Column
- Given Data: Height = 4 m.
- Solution: The Calculation was to proceed into two steps.
- Step 1: Vertical Bar Calculation. Length of 1 bar = H + Ld.
- Length of 1 bar. = 4000 mm + 40d (d is dia of the bar)
- Total length.
- Step 2: Cutting the length of stirrups.
- Calculation of A.
- Calculation of B.
How do you calculate rebar in footing?
For example, if your footings are 140 total feet long and your footings are 24 inches wide, then multiply 140 feet times three. You will get 420 feet. This is how much vertical rebar you will need for your 24-inch footers. Because rebar comes in 20-foot pieces, divide 420 by 20 and you get 21 sticks of rebar.
How are bar schedules calculated?
Example of Beam Reinforcement Calculation:
- Length of B1 = clear distance between walls + 2 x width of walls – 2 x bar cover + 2 x bend length.
- Length of bar B2: A + B + C = 4000 + 2 x 230 – 2 x 40 + (1.414xH – H)
- B2 = 4000 + 2 x 230 – 2 x 40 + (1.414×334 – 334) = 4518.3 = 4520mm.
How much spacing is between rebar?
How far apart must rebars normally be spaced? There should be a clear distance at least equal to the bar diameter between parallel bars but never less than one inch.
