How do you calculate reinforcement for stairs?

Steps to calculate the reinforcement required for Doglegged Staircase:-

1. Find the length of X Bar & Y bar.
2. Find the No. of X Bars & Y bars.
3. Evaluate the total length of X Bars & Y Bars.
4. Find out the total weight of steel required.

What is the formula to calculate no of bars in staircase?

Nos of bar 10 mm dia C/c 80 mm distance = 1.5 M. / 0.080 M. = 18.75 Nos. Length of main bar top area = 1.7 M. – 0.180 M.

How do I calculate concrete for stairs?

Quantity Of Materials For Staircase:

1. Volume of cement = 1/7 x Dry volume = 1/7 x 159 = 22.66 cubic feet.
2. Volume of Sand = 2/7 x Dry volume = 2/7 x 159 = 45 cubic feet.
3. Volume of Aggregate = 4/7 x Dry volume = 4/7 x 159 = 91 cubic feet.

How do you calculate reinforcement for bending schedule?

Example of Beam Reinforcement Calculation:

1. Length of B1 = clear distance between walls + 2 x width of walls – 2 x bar cover + 2 x bend length.
2. Length of bar B2: A + B + C = 4000 + 2 x 230 – 2 x 40 + (1.414xH – H)
3. B2 = 4000 + 2 x 230 – 2 x 40 + (1.414×334 – 334) = 4518.3 = 4520mm.

What is the standard size of a stair step?

The general rule (in the US) is 7-11 (a 7 inch rise and 11 inch run) (17.78cm-27.94cm). More exactly, no more than 7 3/4 inches (19.7cm) for the riser (vertical) and a minimum of 10 inches (25.4cm) for the tread (horizontal or step). You can find some more information here as well on other stair-related dimensions.

How do you calculate square Metres for stairs?

Multiply the landing’s length times its width. This will give you the total area of the landing (and the riser just below it). Add this number to the total area of the stairs to calculate the total surface you’ll need to purchase carpet for. In our example, your landing measures 4 by 5 feet (1.2 m × 1.5 m).