How to calculate the steel quantity for different RCC members
This exclusive civil engineering is created to provide good information on how to determine the minimum and maximum quantity of steel for different types of RCC structures like slab, beam and column.
According to IS code, the least percentage of steel should be as follow:-
Beam = As = 0.04 bd (here as denotes area of steel and bd denotes breadth and depth of steel)
Column = 0.8% of cross sectional area of column
The Cross section of an object belongs to the shape that is produced while cutting straight through an object. It ranges from a rectangle, a circle even an oval on the basis of how it is cut.
Slab = 0.12% of cross sectional area of slab.
Now discussion is made on maximum percentage of steel for beam, column and slab.
Beam = 4% of cross sectional area of beam.
Column = 6% of cross sectional area of column.
Slab = 4% of cross sectional area of slab.
Given below, the thumb rules for steel in RCC structures. This method is suitable for designing the house with two or three rooms. But this method is outdated.
Slab = 80 kg of steel should be selected for 1 cubic meter concrete.
Beam = 120 kg of steel should be selected for 1 cubic meter concrete.
Column = 160 to 180 kg of steel should be selected for 1 cubic meter concrete.
1) The Quantity of steel does not rely on the volume of concrete, but on the structure where it will be applied.
2) Calculation of steel reinforcement quantity is a crucial step in determining the cost of RCC structure together with other building materials with adherence to construction drawing.
3) Perfect estimation of reinforcement in the building is very important for finding out the total costing of the project. The calculation of the reinforcement is done from the drawings and bar bending schedule. When the drawings and schedules are not available, the quantity is generally defined with regard to the requirements of the Standard method of measurement of building works.