Minimum estimated quantity of steel in Slab, Coloum, Beam?

Mininum percentage of steel taken in slab,Beams, and Columns.


Steel reinforcement is calculated as per detailed drawing.
The percentage of steel rainforcement is depends on the design of structure.In absence of detailed drawings of design the percentage of steel concrete may be taken approximate:-

The Density of steel is taken as 7.85 T/cum
Or 7850kg/cum


(1). Lintels or Slab :- 0.7 to 1.0%

(2). Beams    :-  1.0 to 2.0%

(3). Columns :- 1.0 to 5.0%

(4). Foundation Raft, Footings  :- 0.5 to 0.8%

For small Span and light loads less steel is required and for bigger span and heavier loads Greater amount of Steel required.

Eg:-
For lintels or slab:-

        7850×0.7/100  TO  7850×1/100

So,   54.95 kg/cum To 78.50 kg/cum

For Beams:-
         7850×1/100 To 7850×2/100

  So, 78.5kg/cum To 196.25kg/cum

For Columns:- 
         7850×1/100 To 7850×5/100

So,    78.5kg/cum To 392.5kg/cum