Let us consider a plinth beam as shown in the below-given drawing.
Accurate method:
Given data:
Plinth beam size = 300mm. × 380mm.= 0.3m. × 0.38m.
Clear length of the plinth beam = 2500mm.= 2.5m.
Grade of concrete = M20.
A. Material cost
Let us calculate the cost of a single plinth beam PB1.
1. Concrete:
The volume of concrete in the plinth beam
= [ L × B × H]
= [2.5m. × 0.30m. × 0.38m.]
= 0.285 CUM.
Before proceeding further, Go through the article👇
The material cost of M20 grade concrete = INR 6065.42/ CUM.
( M20 cost is taken from the above-mentioned article.)
= [vol. of concrete in CUM × rate/ CUM]
= [0.285 × 6065.42/-]
= INR 1728.65/-
2. Steel:
Let us consider the reinforcement in the plinth beam as shown in the above-given drawing.
Given data:
Main bars 👉 12mm. ∅ - 4 nos.
Stirrup ties 👉 8mm. ∅ - 150mm. c/c.
Clear cover 👉 25mm.
The cutting length & BBS of the plinth beam is calculated in the article 👇
👀. Bar bending schedule of a plinth beam.
The material cost of steel
= [total wt. of steel in kgs. × steel rate/kg.]
= [29.863 kg. × 50/-]
= INR 1493.15/-
Note: Steel wt. is taken from the above-linked article.
B. Labor cost:
1. Plinth beam concreting:
The labor rate of plinth beam concreting will be between INR 500/- to 900/- per CUM.
Let us take the average rate of INR 700/- per CUM.
The labor cost of plinth beam concreting
= [total vol. of concrete in CUM × rate/CUM.]
=[0.285CUM × 700/-]
= INR 199.50/-
2. Reinforcement:
The labor rate of plinth beam reinforcement work will be between INR 8/- to 14/- per kg.
Let us take the average rate of INR 11/- per kg.
The labor cost of plinth beam reinforcement
= [total wt. of steel in kgs. × labor rate/kg.]
= [ 29.863 kg. × 11/-]
= INR 328.49/-
3. Formwork:
The labor rate of plinth beam shuttering work will be between INR 11/- to 17/- per RFT.
Let us take the average rate of INR 14/- per RFT.
or INR 150/- per RMT.
The labor cost of plinth beam formwork
= [total length of formwork in RMT × labor rate/RMT.]
= [ 2.5m. × 150/-]
= INR 375/-
The total labor cost of the plinth beam
= cost of [ concreting + reinforcement + formwork]
= [199.5/- + 328.49/- + 375/-]
= INR 903/-
Now, let us calculate the total cost of a plinth beam PB1 in the table format.
|
Sl. no. |
Item. |
Description. |
Cost in INR. |
|
1. |
Material cost |
|
|
|
2. |
M20 concrete |
For PB1 |
1728.65 |
|
3. |
Steel |
For PB1 |
1493.15 |
|
4. |
Curing |
Lump-sum |
100.00 |
|
5. |
Miscellaneous |
Lump-sum |
100.00 |
|
6. |
The material cost = |
3,421.80 |
|
|
7. |
The Labour cost= |
903.00 |
|
|
8. |
The cost of plinth beam= |
4,324.80 |
|
|
9. |
Add 10% contractors profit = |
432.48 |
|
|
10. |
The total cost of a plinth beam PB1= |
4757.28 |
|
Note:
1. To get accurate results, insert the ongoing market rate of labor & materials in your country.
2. This article is to understand the plinth beam cost calculation procedure. In no way, the cost will be similar to the plinth beam of all dimensions.
3. The cost of the plinth beam varies depending upon their size, location, concrete grade, %ge of reinforcement, etc.
To go through rate analysis & cost-related articles, click here.
Thank you for going through this article❤. Have a good day 😄.
No comments:
Post a Comment