How to calculate concrete for spiral steps || DETAIL of round stair case|| స్పిరాల్ మెట్లు కాంక్రీట్

In this video we explained ,very easy and clear format to find concrete for semi round \ spiral stair case. In detail there are 8 types of stairs are there. THEY ARE : 8 Different Types of Stairs, Explained Straight. This one is straightforward (literally). ... L-shaped (a.k.a. quarter-turn) The classic straight style, zhuzhed up a little. ... Winder. The slightly more complicated sister to the L-shaped staircase. ... U-shaped (a.k.a. half-turn) ... . keep more support, follow us in Instagram- https://instagram.com/civilianvlogs?i... . SPIRAL Curved. ... Bifurcated. ... Ladder. Here we discussed detailed information about spiral stairs here below we take as some example values linear Length Of Stair = Unknown Inclined Length Of Stair = Unknown Waist of stair = 4.5 feet Thickness of stair waist = 0.41 feet Riser of stair = 6” = 0.5 feet Tread of stair = 1’-3” – 1’ (one side & opposite side) No. of steps = Height / One Riser = 10 feet / 0.5 feet = 20 numbers Now, it is required to determine the linear length as follow :- 2 (π x R) 0.50 = 2 (3.142 x 9.5) 0.50 = 29.84 feet Then it is required to determine the inclined length as follow :- √(Base)2 + (Height)2 √(29.84)2 + (10)2 √(890.42) + (100) = √990.42 = 31.47 feet So, inclined length = 31.47 feet Then, you have to find out the waist volume by using the following formula :- Waist Volume = Lenth x width x Thickness = 31.47 x 4.5 x 0.41 = 58.062 cft Steps volume = Unknown Width of tread = 1’ – 3” – 1’ = 1.25 + 1 = 1.125’ Now, it is required to determine one step volume with the following formula :- One step volume = L x W x H / 2 or Length x Width x Height / 2 (as the steps are in triangular shape) = 4.5 x 1.125 x 0.5 / 2 = 1.26 cft So, the volume of one step = 1.26 As the numbers of steps are 20 So, total steps = 20 x 1.26 = 25.2 cft Total Volume = Volume of waist + Volume of total steps = 58.062 + 25.2 = 83.26 cft if you some more queries ,watch this video some more times. again you have some queries call me through comment section . if you like thike video like ,share ,and subscribe . thank you for seeing description . THANK YOU .