The question should be framed thus: "How to calculate
quantity of steel for practical purpose of construction"....
"In a given RCC design" it is simple to arrive at the
quantity by calculating the lenght of each bar & multiply
with the unit weight of given dia.
The thumb rule for calculating steel quantity is 1.5 to 2.0
The quantity of steel can be calculated by formula:
d*d/162 kg/m. where d=diameter of bar in metre
this formula has been derived by relation
However, percentage of steel in rcc structure can be taken
as 0.15% of the gross area of cocrete
a)If column dimensions are 250*400mm , what will be
cutting length for 8mm stirrups and how to calculate it? b)
If beam dimensions are 200*400mm , beam coveris 25mm , slab
cover is 20mm , what will be the cutting length for
stirrups? c)Column dimensions are 250*400mm , reinf. is
12nos. bar of 16mm dia , stirrups provided are two legged,
what will be the length of each ring?