Cutting Length of Circular Stirrups
Calculation of Cutting Length of Circular Stirrups
Before calculating any BBS please read Civil Structure drawing carefully.
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Given value in drawing.
Diameter = 500mm
Clear Cover = 40mm (Add half of ring dia in clear cover for effecting clear cover)
Effecting clear cover = 44mm
Ring Dia = 8mm
For Hooks = 10d or 75mm
Band = 3d for 135°
For Hooks = 10d or 75mm
Band = 3d for 135° (In circular stirrups band of hooks is 135° )
The formula for calculating cutting length of circular stirrups
Length of Circular ring = Circumference of Ring + 2 numbers of hooks – 2 numbers of 135° bends
Circumference of ring = 2丌r
Diameter of ring d =500
Radius or column r =d/2 =500/2
Radius of ring = 250-44 =206
Length of Circular ring = Circumference of ring + 2 no. of hooks – Bend Deduction
Length of Circular ring =(2𝑥3.14𝑥206)+(2𝑥10𝑥8)-(2𝑥3𝑥8)
= 1405.6 mm
= 1.40m
Download Excel sheet for this calculation ( cutting length of stirrups )
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