Design of RCC beam – Some useful tips

In this construction video tutorial, you will get some useful guidance to create the design of RCC beam.

The video focuses on the following topics :-

Size of beam
Amount of steel
No. of stirrups

Size of beam

Determine the depth and breadth of beam with the following formulas :-

Depth of beam :-

Min = d = l/16 (l denote length of beam i.e. 5 meter)
By putting the value, we get d = 5/16 = 0.31 meter = 30 centimeter (approx)

Breadth of beam :-

b = d/1.5
By putting the value, we get b = 30/1.5 (as d = 30 cm) = 20 cm

Amount of steel in beam

Maximum percentage of steel according to IS code

Beam = 4% of x-section (cross section) area

Slab = 4% of x-section area
Column = 6% of x-section area
Now, area of beam = area of column

Area of column = depth x breadth = 30 x 20 = 600 cm²
So, amount of steel in beam = 0.04 x 600 = 24 cm²
The calculation is same for slab and column.
No. of stirrups in beam

(Length of member – 2 x cover) / spacing + 1
After putting the value, we get (5 – 2 x 25)/30 + 1 (here each concrete cover is taken as 25 cm and spacing among two stirrups is taken as 30 cm)
After converting the value to meter, we get (5 -2 x 25)/0.3 + 1

To get more clear idea, go through the following video tutorial.

Video Source: Civil Engineers