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
- 27864 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
how much cement and sand required for 1cum rr masonry
types of piles detail,
can u plz send me ntpc placement papers(civil engineering) at mohit_verma21@yahoo.com
rate analysis hiring of generator 62.5 KVA
How much for the BRC lapping in full yield and half yield < and which table to get it ?
What is the procedure and technnology behind jointing of prestessed block in Delhi metro rail project.
Why do you want to work here
Bitumen grades are 30-40,60-70, 80-100. what is mean by 30- 40
Define What does civil status mean?
In cement making,what is meaning of blend,fineness,density.
why +1 to be followed for calculating the no of bars in BBS. Please explain
For elevated service Reservoirs what will be the output of each skilled carpenter and bar bender.
Maximum cement content in 1cum for RCC and PSC? (please give IS,IRC referance?
What is the purpose of Chipping in the heavy foundation?
what is stressing
