Interested to Buy Any Domain ? << Click Here >> for more details...
how can we determine the quantity of steel bars in a
structure? is there any formula for determing the number of
bars required ?
- 3 Answers
- 27718 Views
- Nespak, I also Faced
- E-Mail Answers
Answer Posted / poovaraghavan
Reinforcement steels are available in various sizes from
8mm to 32mm dia. In order calculate the weight of those
reinforcement bars, there is a formula derived form the
unit weight of steel and the unit volume of the respective
steel bar. In this case you need to remember the unit
weight of steel and more over you need to make unit
conversions for the dia meter of the bar. Because commonly
the diameter of the reinforcement bar is mentioned in
millimeters and the unit weight of the steel (7850 kg/cu.m)
is mentioned in kg/cu.m.
Here, either you need to convert the dia of the bar to
meter or to convert the unit weight of steel to kg/cu.mm
(Kilogram / Cubic millimeter). To reduce this difficulty
and save our valuable time, here is a thumb rule. Also the
rule has been analised and proved here. you can check it
and use it.
Unit weight of the Bar = (Unit volume of the bar) * (Unit
weight of Steel)
= (3.14 * d * d /4) * 1 * (7850)
kg/m Where, d – in meters
= 6165.376 * d * d
= 0.00617
d^2
Where, d – in Millimeters
For a Thumb rule, we can write the above formula as 0.617 *
d^2 /100.
This will give you the weight of the bar in terms of kg/m.
In the above formula you just need to remember only 0.617
as a constant and you can substitute dia in Millimeter
itself. Finally don’t forget divide the answer by 100 as
described above.
| Is This Answer Correct ? | 18 Yes | 16 No |
Post New Answer View All Answers
why we are useing plastic under the lean concrete?and whts the advantage?
Tell me about triple point of water.
cement required for construction of 400mm*200mm*200mm concrete solid blocks for 1sq.mtrs,how?
Can you pl explain the procedure steps of singly and doubly reinforced beams in limit state method
What is the crank length in the slab?
Why Vitrified tile are getting pop up.
WHAT IS YOUR CURRENT SALARY
how to calculate total cost for slab 35'×8'
What are the different softwares used for cad?
Time required for curing of wall tiles before fixing
why we use aggregate,sand with cement in concrete?
trapozidal
What is the use of extend command?
what quantities of work done in terms of sq.mts/day/ of 8hrs for each varpenter (shuttering) and Steel fitter in terms of Tonnes. For slabs, Columns etc.?
What is a tensile strength? What is the tensile strength of wood?
