How do you prepare bar bending schedule for a beam?

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How do you prepare bar bending schedule for a beam?

Bar Bending Schedule for Simple Beam

  1. Observations.
  2. Step 1 – Find cutting length of top bar.
  3. Step 2 – Find cutting length of bottom bar.
  4. Step 3 – Find out Number of Stirrups.
  5. Step 4 – Find out cutting length of Each Stirrup.
  6. Observations.
  7. Step 1 – Find cutting length of top bar.
  8. Step 2 – Find cutting length of bottom bar.

How do you calculate the bent up bar length of a beam?

KNOW HOW TO CALCULATE THE CUTTING LENGTH OF BENT UP BARS

  1. Inclined Length = D/(sin 45°) – dD/ (tan 45°)
  2. = (D/0.7071) – (D/1)
  3. = (1D – 0.7071D)/0.7071.
  4. = 0.42 D.

How do you calculate bend rod length?

How To Calculate Bend Deduction Length Of Bar

  1. For 45° bend = 1 x d.
  2. For 90° bend = 2 x d.
  3. For 135° Bend = 3 x d.
  4. For 180° bend = 4 x d.
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What is the correct formula for calculating the length of bent up bar in slab bent one side?

D = Height of the bend bar. In the above formula, all values are known except ‘D’. So we need to find out the value of “D”. ∴ Cutting Length = 8980 mm or 8.98 m.

How do you calculate the length of a bar?

1800 Bend

  1. Cover is taken as B and diameter of bar is taken as D.
  2. Additional length for each hook = 9D.
  3. If hook is located at one end, total length of bar = L + 9D.
  4. If hook is located at both ends, total length of bar = L + 9D + 9D.

How do you use a bar bending schedule?

Step by Step Preparation of Bar Bending Schedule.

  1. Identification of Members (Steel Bars)
  2. Step 2 Count the Number of bars.
  3. Step 3: Calculate the length of Reinforcement bars.
  4. Step 4: Calculate the unit weight of Reinforcement Bar.
  5. Step 5: Calculate the Weight of particular Shape of Bar.

How do you calculate the number of bars?

The quantity is done in two steps.

  1. (Calculation of Bars No’s) First, calculate the number of bars required (main and distribution both). FORMULA = (Total length – Clear cover)/center to center spacing + 1. Main bar = (5000 – (25+25))/100 + 1.
  2. (Cutting length) MAIN BAR: FORMULA = (L) + (2 x Ld) + (1 x 0.42D) – (2 x 1d)
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How do you calculate bars for a slab?

Formula = (total length – clear cover)/center to center spacing + 1 main bar, = (5000 – (25+25))/100 + 1, = 4950 divided by 100 + 1, = 51 bars., distribution bar = (2000 – (25+25))/125 + 1, = 1950 divided by 125 + 1, = 17 bars.

What is Schedule of bar?

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.

What is the meaning of bar bending schedule of beam?

Bar bending schedule of the beam means to calculate the total cutting length and quantity of steel rods required in the beam for a safe and durable structure. A beam is a horizontal load-bearing structure supported by two members like a column or wall. The load provided on the beam is generally uniformly distributed load.

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How do you calculate the length of a bent bar?

Bend length = 6 x 16 = 96 consider as 100mm. Bend length is calculated as 6 x diameter of bar for reinforcement conforming to IS: 1786-1961. Length of B1 = 4000 + 2 x 230 – 2 x 40 + 2 x100 = 4580mm. Length of bar B2 is calculated based on shape of this bar. This bar bends up near the support as shown below:

What is the difference between BBs and bar bending schedule?

Bar Bending Schedule is a definitive list of reinforcement bars for any structural element that includes a mark, shape, size, location, length, and bending details of the reinforcement. It is often referred to as BBS. Tabular view representation of each reinforcement bar used in any structural element is known as BBS.

How do you calculate the length of a beam?

Total Cutting Length of Top bars (L) = length of beam – Clear cover at both ends + development length – Bend length Total Length of main rods (L) = 4000 mm – 50 mm + 576 mm – 64 mm = 4462 mm But, the beam have two main rods so, we have to multiply with 2.