Introduction of How to Calculate Steel in Rcc Slab

Example of Calculate Steel in Rcc Slab

Data of Calculate Steel in Rcc Slab-

• Length of the Slab = 5 m = 5000 mm
• Width of the Slab = 2 m = 2000 mm
• Thickness of Slab = 0.150m = 150 mm

Step 1. Number of Main Bar & Distribution Bar:

Number of Main Bar

• Number of Bar = (5000- 2 x 25 ) 100 +1
• Number of Bar = 50.5  = 51 nos
• There are 51 nos of main bars are required for the slab.

Distribution of Main Bars

• Distribution Bar = (2000- 2 x 25) /125 +1
• Distribution Bar =  16.6 = 17 bar
• The number of distribution bar are 17 no.

Step 2. Calculate the Cutting Length  of Bar:

Calculate the cutting length  of bar

• L= Clear span of the slab
• Ld =  Development length which is 40 d where d is the diameter of the bar

• Development Length = 150 - 2 x 25 -12
• Development Length = 88 mm

Main Bar Cutting Length 

• Main Bar Cutting Length  = 2000 + ( 2 x 40 x 12) + (1 X 0.42 X 88)- ( 2 x 1 x 12)
• Cutting Length  = 2972.96 mm
• Cutting Length = 2973 mm
• Cutting Length = 2.973 m

Distribution Bar Cutting Length 

• Distribution Bar Cutting Length =  5000 + (2 x 40 x 8 )
• Distribution Bar Cutting Length = 5640 mm
• Distribution Bar Cutting Length = 5.64 m

Step 3. Total Weight of Slab Steel :

Main Bars Steel Quantity Calculation

• The number of main bar required are 51 nos ( as per step 1)
• The length of one main bar = 2.973 m ( as per step 2)

• Total Length of the Main Bar = ( 51 X 2.973)
• Total Length of the Main Bar = 151.623m
• Weight of the Main Bar = Total Length x ( D2/ 162)
• Weight of the Main Bar =  151.623 x (122/162)
• Weight of the Main Bar = 134.776 kg 

Distribution Bar Steel Quantity Calculation

• Total Length of the Distribution Bar = 95.88 m
• Weight of the Distribution Bar = Total Length x ( D2/ 162)
• Weight of the Distribution Bar = 95.88 x (102/162) = 37.87 kg

Total Weight of Steel

• Total Quantity of Steel Required For Slab = 134.776 kg + 37.87 kg
• Total Quantity of Steel Required For Slab = 172.646 kg

BBS for Slab-

How to Calculate Steel Quantity for Slab:

• Step 1. Number of Main Bars & Distribution Bars.
• Step 2. Calculate the Cutting Length of Bars.
• Step 3. Total Weight of Slab Steel.

Steel Quantity-

Steel Required Per Square Feet-

Reinforcement in Slab-

How to Calculate Steel in Rcc Slab?

Steel Required for Slab

Rcc Slab Steel Calculator

Steel Calculator for Slab

Roof Slab Steel Calculation

• Volume = Length x Width x Thickness
• Volume = 8 x 6 x 0.15
• Volume = 7.2 cubic meters

Area of Steel Formula in Rcc

Slab Steel Calculation

Roof Rod Calculation

Tmt Bar Calculation for Roofing

Steel Calculation for Slab Online

1. Open your preferred search engine and search for "Online Steel Calculation for Slab" or similar keywords.
2. From the search results, select a reliable and trustworthy website that offers a steel calculation tool for slabs.
3. Once you are on the website, enter the required details of the slab such as length, width, thickness, and spacing between the steel bars or rods.
4. The online steel calculation tool will then automatically calculate the amount of steel required for the slab and display the results on the screen.

Slab Size in Mm

Rcc Slab Calculation Formula

• Length is the length of the slab in meters
• Width is the width of the slab in meters
• Thickness is the thickness of the slab in meters

Steel Required for Slab Per Square Feet

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