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Flashcards in Stairs Deck (20)
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1
Q

Staircase

A

Stairs themselves: the steps, railings and landings

Aka stairs, stairway

2
Q

Stairwell

A

a vertical spatial opening, usually a double or multiple volume containing an indoor stairway

3
Q

Treads

A

are the upper surfaces of steps

4
Q

Risers

A

Make up the vertical portion between the tread of a step and the tread of the step immediately above it

5
Q

Nosing

A

the edge of a step projecting beyond the riser.

6
Q

Landing

A

a platform between two consecutive flights of a stairway

7
Q

Going

A

the distance measured on plan between the nosing of a tread and the nosing of the thread or landing immediately above it

8
Q

Flight

A

A flight as a part of a stairway which consists of consecutive steps between landings in other words an uninterrupted series of steps

9
Q

Pitch line

A

this is a notional line which connect the nosings of all the threads in a flight of stairs

10
Q

Winder

A

these are steps that are narrower on the one side than the other change direction of the stairs without landings where the regulations will allow it

11
Q

Balustrades and handrails

A

The balustrade is a system Of railings and balusters that prevent people from falling over the edge of a staircase
Balusters are vertical posts that holds up the handrail
Handrails can I have various profiles but should be free of abrasive elements and have a comfortable cross section in relation to the ergonomics of a hand

12
Q

SANS
Height &; going
Max tolerance

A

Height and going of steps should remain the same along the stairs maximum tolerance 6 millimetres

13
Q

SANS

going min

A

The going and with of a thread shall not be less than 250 mm, provided that where the stairway does not have solid Risers each thread shall overlap the next lower thread by no less than 25 mm

14
Q

SANS

Rise max

A

Rise of a step shall not exceed 200 mm.

If the building is however deemed to be accordance with sans 10400 – s the Rise may not exceed 170mm and must be solid.

15
Q

SANS

Headroom

A

The Headroom at any point on a stairway shall not be less than 2.1 m measured vertically from the pitch line

16
Q

SANS

Width

A

Width of any stairway shall not be less than 700 mm

17
Q

SANS

Straight Landing

A

Any landing in the same straight line so have a lenght no less than 900mm and a with that of the adjoining flights.

18
Q

SANS

Rise between landings

A

No flight of stairs shall have a vertical Rise greater than 3 m between Landings

19
Q

SANS

Doors & doorways

A

No Door shall open onto a stairway unless such door opens onto a landing and the width of the landing is not less than that of the door

20
Q

Types of stairs

A

Straight, winder, quarter-turn or L-shaped, half-turn U-shaped or dog leg, circular, spiral