Making Process of Column Stirrup
The reinforced concrete column is a structural member and is designed to bear loads. This column has two types of bar. One is a longitudinal bar and another one is a horizontal bar. Stirrups and ties are used in columns in the case of the horizontal bar.
Stirrups are also known as ring, shear reinforcement. Users have to calculate the cutting length of the bar and also have to calculate the number of stirrups to make stirrup for the column. After that users have to decide the size of the stirrup.
Step by step guide
1. To determine the size of the stirrup.
2. To calculate the cutting bar length for stirrup.
3. To calculate the number of stirrups.
4. To bend the bar in stirrup?s shape.
To determine the size of the stirrup
Let us say, The column size is 20" x 40". We all know that the concrete clear cover for reinforcement of column is 1??.
So the length of the stirrup will be 40"-2?1??=37" and the width will be 20"-2?1??=17".
So the size of the stirrup is 37"x17".
To calculate Cutting-Bar-Length for Stirrup
Users should have to calculate the cutting bar length for the stirrup before cutting the bar. There are two types.
A. Actual bar length and
B. Cutting bar length.
Actual bar length of the stirrup is
2 x length + 2 x width + 2 x hook?s length= 2 x 37" + 2 x 17" + 2 x 3" = 114" or 9.5'.
Hook length for 10mm? bar is 6 x 10 = 60 mm.
Here, the hook length is calculated by a formula that is 6db (diameter of the bar).
According to the code length of the hook should not be less than 75mm.
So the hook length for the stirrup is 3" (75mm = 3").
The actual bar length of the stirrup is 9.5'.
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