HOW TO CALCULATE WEIGHT OF STEEL BARS IN FEET -lceted LCETED INSTITUTE FOR CIVIL ENGINEERS

HOW TO CALCULATE WEIGHT OF STEEL BARS IN FEET

(D)2/533

Is the formula to calculate the weight of steel bars in KG/ft

So the weight of 10 mm bar will be,

(10 x 10) / 533 = 0.188 kg/ft

similarly, the weight of bars will be as follows,

Unit weight of steel is d square/533. How is it derived?

To be accurate W= D2/533 it is

Its is derived from the very basic concept

I.E., weight = density x volume
it is also can be written as weight = density x (area x length)

since ,
density of steel in meter =7850 kg/m3 > 7850/(1000X1000X1000) kg/mm

Length= 1 m

Area = π(pi) x d2/ 4

Unit Weight of Steel Bar (in Kgs) = (3.14 X D^2)/4 X 1000 X 7850 / (1000 X 1000 X 1000)

Therefore, weight = (7850 x (3.14/4) d2 x 1000) / (109)

= d2 x 0.00616225 which is also can be written as

=(d2/1) x (0.00616225/1)

= d2 / (1/162.2)

=d2/162.2

( 1 metre = 3.28084 feet)

Weight of steel per feet = d2/(162.27 x 3.28084)

= d2/532.38 ≈= d2/533 (say)

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