Stairs,Building drawing.
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Transcript of Stairs,Building drawing.
![Page 1: Stairs,Building drawing.](https://reader038.fdocuments.net/reader038/viewer/2022102706/55a5de6d1a28ab83558b46a1/html5/thumbnails/1.jpg)
Er.Roshan Kr. Chaudhary
Faculty of construction engineering
R.A.G.C, Thane
Stairs
![Page 2: Stairs,Building drawing.](https://reader038.fdocuments.net/reader038/viewer/2022102706/55a5de6d1a28ab83558b46a1/html5/thumbnails/2.jpg)
Terminologies
1.Baluster:The vertical member fixed between
string and hand rail.
![Page 3: Stairs,Building drawing.](https://reader038.fdocuments.net/reader038/viewer/2022102706/55a5de6d1a28ab83558b46a1/html5/thumbnails/3.jpg)
Terminologies
Balustrades-The combined frame work of
baluster and hand rails.
Flights : Unbroken series of steps between
landing.
![Page 4: Stairs,Building drawing.](https://reader038.fdocuments.net/reader038/viewer/2022102706/55a5de6d1a28ab83558b46a1/html5/thumbnails/4.jpg)
Terminologies
Hand rail: it is inclined rail ,provided over the
stings.
Head Room: vertical distance between nosing of
one flight and bottom of flight above it.
![Page 5: Stairs,Building drawing.](https://reader038.fdocuments.net/reader038/viewer/2022102706/55a5de6d1a28ab83558b46a1/html5/thumbnails/5.jpg)
Terminology
Landing : The horizontal Platform between 2
flights.
![Page 6: Stairs,Building drawing.](https://reader038.fdocuments.net/reader038/viewer/2022102706/55a5de6d1a28ab83558b46a1/html5/thumbnails/6.jpg)
Terminologies
Newel post: Vertical member at the ends of the
flight.
![Page 7: Stairs,Building drawing.](https://reader038.fdocuments.net/reader038/viewer/2022102706/55a5de6d1a28ab83558b46a1/html5/thumbnails/7.jpg)
Terminologies
Nosing : Projected part of the tread beyond the
Riser.
![Page 8: Stairs,Building drawing.](https://reader038.fdocuments.net/reader038/viewer/2022102706/55a5de6d1a28ab83558b46a1/html5/thumbnails/8.jpg)
Terminologies
Pitch:
![Page 9: Stairs,Building drawing.](https://reader038.fdocuments.net/reader038/viewer/2022102706/55a5de6d1a28ab83558b46a1/html5/thumbnails/9.jpg)
Terminologies
Riser: The vertical front member of a step.
Tread: The horizontal upper portion of the tread.
Winders: special type of steps which are used in
place of landing
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FOR DESIGNING YOU MUST KNOW Pitch:25-40 degree
Standard size of tread and riser:
Type of building Tread Riser
Residential
building
25 16
Commercial
building
27 15-16
factories 18 25
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Different types of stairs:
Straight flight stair
Dog legged stair
Quarter turn and half turn stair
Spiral stair
Circular stair
Bifurcated stair
Open newel stair
Geometrical stair
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Straight flight stair
![Page 13: Stairs,Building drawing.](https://reader038.fdocuments.net/reader038/viewer/2022102706/55a5de6d1a28ab83558b46a1/html5/thumbnails/13.jpg)
Dog legged stair
Flights run in opposite direction and there is no
space between the two flights in plan.
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Quarter turn and half turn stair. Stair turning through 90 degree.
![Page 16: Stairs,Building drawing.](https://reader038.fdocuments.net/reader038/viewer/2022102706/55a5de6d1a28ab83558b46a1/html5/thumbnails/16.jpg)
Spiral stair
A Type of circular stair with a vertical column in
centre.
![Page 17: Stairs,Building drawing.](https://reader038.fdocuments.net/reader038/viewer/2022102706/55a5de6d1a28ab83558b46a1/html5/thumbnails/17.jpg)
Circular stair
Circular in plan , winders are used in instead of
landing.
![Page 18: Stairs,Building drawing.](https://reader038.fdocuments.net/reader038/viewer/2022102706/55a5de6d1a28ab83558b46a1/html5/thumbnails/18.jpg)
Bifurcated stair
Quarter turn stair with two branches divided after
landing.
![Page 19: Stairs,Building drawing.](https://reader038.fdocuments.net/reader038/viewer/2022102706/55a5de6d1a28ab83558b46a1/html5/thumbnails/19.jpg)
Open newel stair
Similar to dog legged stair but there is some gap
between two flights.
![Page 20: Stairs,Building drawing.](https://reader038.fdocuments.net/reader038/viewer/2022102706/55a5de6d1a28ab83558b46a1/html5/thumbnails/20.jpg)
![Page 21: Stairs,Building drawing.](https://reader038.fdocuments.net/reader038/viewer/2022102706/55a5de6d1a28ab83558b46a1/html5/thumbnails/21.jpg)
Geometrical stair
Similar to open stair but two flights are connected
by each other by means curved winders instead
of landing.
![Page 22: Stairs,Building drawing.](https://reader038.fdocuments.net/reader038/viewer/2022102706/55a5de6d1a28ab83558b46a1/html5/thumbnails/22.jpg)