How To Calculate The Cutting Length Of Circular Stirrup

How To Calculate The Cutting Length Of Circular Stirrup

Now, let us calculate the cutting length of the circular stirrup for the below-given drawing.

Given data

Diameter of circular column D = 450mm

Clear cover = 40mm.

The diameter of stirrup d = 8mm.

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The cutting length of the circular stirrup 

= [2πr + ( 2nos. × hook length ) – ( 2nos. × hook bend. ) ]

= [ 2πr +( 2nos. × 10d ) – ( 2nos. × 2d )

Here,

d = diameter of the stirrup.

r = radius of the centerline of the circular stirrup ( as shown in the drawing).

First, we will calculate the value of r from the given data.

r = [ (1/2 × diameter of column ) –  clear cover – ( 1/2 × diameter of stirrup bar )]

r =  [ (1/2 × 450mm ) – 40mm – ( 1/2 × 8mm ) ]

r = [ 225mm – 40mm – 4mm ]

 r = 181mm.

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The cutting length of the circular stirrup

= [ ( 2 × π × 181mm ) + ( 2nos × 10d ) – ( 2nos. × 2d ) ]

= [ ( 2 × 3.142 × 181mm ) + ( 2nos. × 10 × 8mm ) – ( 2nos. × 2 × 8mm. )]

= [ 1137.4 mm + 160mm – 32mm ]

= 1265.404mm

= 1.265m.

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Thank you for going through this calculation❤. Have a good day

 

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