**Following Are The Steps To Calculate The Quantity Of Steel For RCC Slab:**

1- Prepare a **bar bending schedule** in order to classify different shapes of bars (bent up bar, straight anchor bar, bar, curtail bar, etc) and diameters.

2- List down all the **shapes of bars** from the drawing.

3- Count the **number of bars** of each of those shapes.

4- Then calculate the cutting length of each of those bars.

**Cutting length of bar =*** (length of the member **–** deduction for cover on both sides) **+ **development length.*

5- Then calculate the unit weight of each dia bars by the following formula:

**W = d^2/162*L
**

Where d is the diameter in mm and weight (w) in kg, L= total length

6- Then calculate the weight of rebar

**Weight of rebar**= ** no of bars **x

**x**

*cutting length*

*unit weight*7. Add all the **weight** to get the total steel quantity.

**NOTE :**

** 1- Minimum % Of Steel Are:**

1- For Beam (Teinsion reinforcement):

As = 0.85bd/fy of gross cross-section area.

2- For Slab = 0.12% of total area

3- For Column = 0.8% of cs area

**2- Maximum % Of Steel Are:**

1- For Beam = 4 % of cross-section area.

2- For Slab = 4% of cross-section area.

3- For column = 6% of cross-section area.

**3**–** Development Length** is usually specified in the drawings, but if not then you can calculate it as,

D.L = Depth – 2 times cover

**4**– **Binding wire** = 10 grams per kg of reinforcement.

**5- No. of stirrups** = (length of member – 2 x cover ) / spacing + 1

## 1 comment

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