Estimating Sheet

# Calculation of steel & concrete in a RCC beam

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In a RCC beam there are steel bars along with concrete. In this civil engineering video tutorial, you will learn the detail procedure for working out the quantity of steel and concrete in a RCC beam.

The calculation is done for shear reinforcement as well as flexural reinforcement.

Reinforced concrete beams belong to structural components which are designed to bear transverse external loads. The loads develop bending moment, shear forces and in some cases torsion across their length.

Because of the vertical external load, bending condenses the top fibers of the beam and elongates the fibers at the base. The strength of the RCC beam is dependent on the combined action of concrete and steel.

Approximate ratio of steel in RCC components :-

Lintel and beams = 1% to 2%
Columns = 1% to 5%
Foundation = 0.5% to 0.8%
Roof Slab = 0.7% to 0.8%

How to calculate steel bars in beams: The size of the beam is given as follow -

Length = 5 meter