TUTORIALS

Length calculation of Spiral Bar or Helix Bar

The construction engineering video tutorial demonstrates the procedure to find out the length of helix bar or spiral bar.

Furthermore, the spiral bar is even known as transverse reinforcement. Also, It’s generally utilized in reinforcing circular column. Moreover, in beam, that sort of transverse reinforcement is called stirrups.

With regard to rectangular column, it is known as ties while in circular column, it’s known as spiral bar or spiral reinforcement. Also, the objective of that sort of reinforcement is to keep the main bars in specific position.

Furthermore, the depth or height of the column is considered as ten feet. Furthermore, the gaping amid every spiral is two feet. Also, the gaping between 2 consecutive spirals is called pitch.

In order to find out the length, the subsequent formula is utilized:

L = n√(C^2+P^2 )

Furthermore, in that formula, n signifies count of turns in the spiral bar, C signifies circumference of the bar as well as P signifies pitch of the bar.

Moreover, the value of n is calculatedby the subsequent formula:

n = H/P = Overall Height of the column/pitch = 10/2 = 5

Therefore, there are five numbers of turns in that spiral bar or column.

Furthermore, the value of C is calculated by the subsequent formula:

C = πD = 3.14 x 3 (diameter is considered as = 3 feet, value of pie = 3.14) = 9.4 feet

Also, the value of pitch is considered as 2 feet.

When placing the abovementioned value in the formula, the subsequent result is obtained:

L = n√(C^2+P^2 ) = 5√(〖9.4〗^2+2^2 )= 5√92.36 = 48 feet

Therefore, the length of the spiral bar is forty-eightfeet.

To get more clear ideas, go through the following exclusive construction video tutorial.

Lecturer: Civil Engineering