Bar Bending Schedule of Staircase | With Single Reinforcement Detail and Handrail Reinforcement | BBS Calculation Formula
To calculate the Bar Bending Schedule of Staircase | Handrail Reinforcement | BBS Calculation Formula | Doglegged staircase, I request you to learn the Basics of Bar bending schedule and also the components of Staircase
Stairs provide access to the various floors of the building. The stair consists of series of steps with landings at appropriate intervals. The stretch between the two landings is called flight. The Space, where stairs are provided is called staircase. Handrail Reinforcement
To make it ease in understanding, I am calculating the quantities of a staircase by dividing into components.
Components of Staircase:-
Waist slab: Waist slab refers to a slab of the stair that is inclining from the floor slab to the landing slab.
Flight: The series of steps between floor and landing.
Landing: The level of floor between flight.
Step: The step consists of Riser and tread.
Tread: The tread is the flat part that you step on.
Riser: The riser is the vertical(up and down) part between each tread in the stairway.
BAR BENDING SCHEDULE OF RCC STAIR:
Finding out the Actual Length of Waist Slab:-
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. Basics of Bar bending schedule
From the above figure, staircase consists of two waist slabs 1 & 2. As reinforcement quantities varies among waist slab 1 & 2.Let us calculate the quantities individually. Remember, the above mentioned steps are same for both slabs. Doglegged Staircase
Before diving into the calculation part, ensure that you are perfect in deducting the concrete cover. If not? follow the below post first
Waist Slab-1:- (Adopt Dia 8mm @100mm)
Waist Slab-2:- (Adopt Dia 8mm @100mm)
Landing-1:- (Adopt Dia 8mm @100mm)
X bars of Landing-1 are tied with Slab reinforcement. hence, there is no further need of calculating the steel required for Landing-2.
The X bars of Landing-1. are already added and calculated in Waist slab. Now, calculate the Y bars of landing-1.
Concrete cover has been deducted from the length of Y bar from both sides. BBS Calculation Formula
L-Type Bars for Stairs:- (Adopt Dia 6mm bars)
No. of Steps = 20
Hand Rail:- (Adopt Dia 8mm @100mm)
ABSTRACT OF STAIRCASE REINFORCEMENT:-
Full article on Bar Bending Schedule of Staircase with Handrail Reinforcement | BBS Calculation Formula | Doglegged staircase. Thank you for the full reading of this article in “The Civil Engineering” platform in English. If you find this post helpful, then help others by sharing it on social media. For More detail please see the above video tutorial further you have any question regarding article please tell me in comments