# How is helical length calculated?

## How is helical length calculated?

If you are looking for an answer to the question “How to calculate helical length?” then here is the Helical length formula for you to calculate the length of the given helix. It is calculated by taking the square root of the sum of the squares of its height and circumference.

### What is the length of a helix?

In the case of the helix, for example, the arc length parameterization is ⟨cos(s/√2),sin(s/√2),s/√2⟩, the derivative is ⟨−sin(s/√2)/√2,cos(s/√2)/√2,1/√2⟩, and the length of this is √sin2(s/√2)2+cos2(s/√2)2+12=√12+12=1.

#### How do you calculate length of helical reinforcement?

a) Compute the net diameter of bored pile, i.e. diameter of bored pile less clear concrete cover, say 50 mm. Hence, net diameter = 1.5 m – 2*0.05 = 1.4 m. f) Finally, total quantity of spirals expressed in kgs = total length x unit weight = 785.35 kgs.

How do you calculate the length of a coil?

To calculate spring wire length per coil, you must subtract the wire diameter from the outer diameter in order to get mean diameter. Once you have calculated mean diameter, multiply it by pi (3.14); this will give you the length of wire per coil.

How is pile length calculated?

Required Rnfield resistance is 150/0.5= 300 kips. Pile length is estimated as 57.5 ft from Figure 1 at the depth where Rnfield is equal to 300 kips. For the contract documents, include an estimated pile length of 60 ft and required Rndr of 300 kips to finalize this length during construction in the field.

## How do you find the area of a helix?

So…the area of the helix is T/2pi where T = B-A, the total interval length in T. Of course, you could scale this using the simple area of a circle formula for different radii.

### What is spiral length?

The length of a spiral can be calculated as. L = 3.14 n (D + d) / 2 (1)

#### How do I find the length of a cylinder?

What’s the height of a cylinder formula?

1. Volume of a cylinder: V = π * r² * h ,
2. Base surface area of a cylinder: A_b = 2 * π * r² ,
3. Lateral surface area of a cylinder: A_l = 2 * π * r * h ,
4. Total surface area of a cylinder: A = A_b + A_l ,
5. Longest diagonal of a cylinder: d² = 4 * r² + h² .

What is the formula of length of wire?

Maybe a more accurate value will be given by: wire length = n(circumference of single turn) + (n-1)p.

What is pile length?

Length and density In particular “pile length” or “pile depth” refer to the length of the yarn strands (half-length of the loops).