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How to calculate steel quantity from drawing
Assessment of steel quantity is a vital expertise of a civil engineer. Each civil engineer should be acquainted with the technique of computation of steel quantity out of drawing.
Information needed for assessment of steel quantity:
- Plan of element or section. (Beam, Slab, Foundation and Column)
- Elevation as well as section specifications.
- The entire measurements should be apparent as well as correlated.
Assume an illustration of a slab with regard to steel assessment.
Subsequent magnitude/quantity has to be calculated out of illustration.
- Cement concrete with regard to slab.
- Centering as well as shuttering with regard to slab.
- Twelve mm dia. bars’ weight.
- Eight mm dia. bars’ weight.
- Form bar bending schedule.
[Message – Steel bars’ weight twelve mm – @ 0.9 kg/m
Eight mm – @ 0.4 kg/m,
Assessment Sheet:
| Component details | Number | Length[m] | Width/Breadth[m] | Height/Wt[m] | Quantity |
|---|---|---|---|---|---|
| Cement Concrete with regard to Slab [1:1.5:3] | |||||
| L is equal to 4 + 0.23 + 0.23 is equal to 4.46 m | 1 | 4.46 | 3.46 | 0.12 | 1.85 cu m |
| B is equal to 3 + 0.23 + 0.23 is equal to 3.46 |
(Witness illustration in to in measurement [devoid of the wall] of the slab is specified 3 m x 4 m. In order to compute magnitude/quantity of slab concrete the slab’s dimension has to be calculated.)
| Centering and Shuttering with regard to Slab: | ||||||
| Bottom | 1 | 4 | 3 | - | 12 | cu m |
| Sides | 2 | 4.46 | - | 0.15 | 1.34 | cu m |
| ( Assume 30 mm additional over slab thickness) | 2 | 3.46 | - | 0.15 | 1.04 | cu m |
| Overall | 14.38 | cu m | ||||
(Formwork magnitude/quantity is computed in square meter. Furthermore, there is a bottom section as well as four side shuttering. With regard to bottom in to in dimension of slab 3 m x 4 m is there.
With regard to side formwork, there are two distinct measurements, two having four [4] m side as well as two having 3 m sides. With regard to the overall length, wall width of the two sides has to be added to obtain the overall length.)
Free Download Bar Bending Schedule for Slab in Excel Sheet
Article Source: civiconcepts.com
