Importance and study
Hrishiraj Sarma/APIED/2013

1
It is impossible for an Architect to escape from staircase in his lifetime.

Medium of travel which connects two consecuti...
1.
2.
3.
4.
5.

Understanding design aspects.
Knowledge of materials.
Types of staircase and their respective uses.
Termin...
Type of Use
Type of Building
Where to locate a staircase?

Type of Staircase

Strength and load
Standards (IS Code)

Hrish...
1. Straight stairs

Hrishiraj Sarma/APIED/2013

5
2. Dog-legged stairs
Hrishiraj Sarma/APIED/2013

6
3. Open-newel stairs

Hrishiraj Sarma/APIED/2013

7
4. Quarter turn newel stairs

Hrishiraj Sarma/APIED/2013

5. Half turn newel stairs

8
6. Geometric stairs

Hrishiraj Sarma/APIED/2013

9
7. Spiral stairs

Hrishiraj Sarma/APIED/2013

8. Bifurcated stairs

10
9. Circular stairs

Hrishiraj Sarma/APIED/2013

11
Wooden stair

Stone stair

Hrishiraj Sarma/APIED/2013

Metal stair

12
R.C.C stair

Brick stair

Hrishiraj Sarma/APIED/2013

Movable stair

13
TREAD: it is the upper horizontal portion of a step upon
which the foot is placed while ascending or descending.
RISER: it...
RISE: it is the vertical distance between two successive
tread faces.
GOING: it is the horizontal distance between two
suc...
BALUSTER: it is vertical member of wood or metal,
supporting the hand rail.
HAND RAIL: it is the surrounded or moulded mem...
OR GOING

Hrishiraj Sarma/APIED/2013

17
Dog-legged stair in timber
Hrishiraj Sarma/APIED/2013

Different types of handrails
18
Methods of fixing balusters in stone steps
Hrishiraj Sarma/APIED/2013

Detail of R.C.C stair
19
Detail of wooden stair
Hrishiraj Sarma/APIED/2013

Structural details of precast R.C.C spiral
stair
20
Typical section of stair

Hrishiraj Sarma/APIED/2013

21
1.
2.
3.
4.
5.
6.
7.
8.
9.

10.

Location.
Width of a stair (minimum 90 cm in residential use).
Length of flight (maximum ...
1. Tread + (2 X Riser) = 60
2. Tread X Riser = 450 (maximum)

1.
2.
3.
4.

Tread= 30 cm
Riser = 15 cm
Width = 90 cm (Resid...
Thank You

Hrishiraj Sarma/APIED/2013

24
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Staircase: My teaching for 1st Year B.Architecture

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Staircase is an amazing discovery by human. This is one of the major building elements to be learnt by the students of Architecture and interior designing in the very initial stage of their academic life. We, before starting the topic in classroom with a blackboard, try to give an overall idea about the design of staircase, it's technical terms, elements and uses. Hence, my this presentation might be useful for other colleges and students too.

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Staircase: My teaching for 1st Year B.Architecture

  1. 1. Importance and study Hrishiraj Sarma/APIED/2013 1
  2. 2. It is impossible for an Architect to escape from staircase in his lifetime. Medium of travel which connects two consecutive horizontal surfaces. 2. A complete arrangement of steps, stringers, newel posts, hand rails, balusters, etc. 3. Easy and quick access to different floors with comfort and safety. 1. Hrishiraj Sarma/APIED/2013 2
  3. 3. 1. 2. 3. 4. 5. Understanding design aspects. Knowledge of materials. Types of staircase and their respective uses. Terminologies and dimensions. Detailing; structural details and fixing details. Hrishiraj Sarma/APIED/2013 3
  4. 4. Type of Use Type of Building Where to locate a staircase? Type of Staircase Strength and load Standards (IS Code) Hrishiraj Sarma/APIED/2013 4
  5. 5. 1. Straight stairs Hrishiraj Sarma/APIED/2013 5
  6. 6. 2. Dog-legged stairs Hrishiraj Sarma/APIED/2013 6
  7. 7. 3. Open-newel stairs Hrishiraj Sarma/APIED/2013 7
  8. 8. 4. Quarter turn newel stairs Hrishiraj Sarma/APIED/2013 5. Half turn newel stairs 8
  9. 9. 6. Geometric stairs Hrishiraj Sarma/APIED/2013 9
  10. 10. 7. Spiral stairs Hrishiraj Sarma/APIED/2013 8. Bifurcated stairs 10
  11. 11. 9. Circular stairs Hrishiraj Sarma/APIED/2013 11
  12. 12. Wooden stair Stone stair Hrishiraj Sarma/APIED/2013 Metal stair 12
  13. 13. R.C.C stair Brick stair Hrishiraj Sarma/APIED/2013 Movable stair 13
  14. 14. TREAD: it is the upper horizontal portion of a step upon which the foot is placed while ascending or descending. RISER: it is the vertical portion of a step providing a support to the tread. FLIGHT: this is defined as an unbroken series of steps between landings. LANDING: it is the level platform at the top or bottom of a flight between the floors. A landing facilitates change of direction and provides an opportunity for taking rest during the use of the stair. Hrishiraj Sarma/APIED/2013 14
  15. 15. RISE: it is the vertical distance between two successive tread faces. GOING: it is the horizontal distance between two successive riser faces. STRINGS AND STRINGERS: these are the slopping members which support the steps in a stair. They run along the slope of the stair. NEWEL POST: newel post is a vertical member which is placed at the ends of flights to connect the ends of strings and hand rail. Hrishiraj Sarma/APIED/2013 15
  16. 16. BALUSTER: it is vertical member of wood or metal, supporting the hand rail. HAND RAIL: it is the surrounded or moulded member of wood or metal following generally the contour of the nosing line, and fixed on the top of balusters. Hrishiraj Sarma/APIED/2013 16
  17. 17. OR GOING Hrishiraj Sarma/APIED/2013 17
  18. 18. Dog-legged stair in timber Hrishiraj Sarma/APIED/2013 Different types of handrails 18
  19. 19. Methods of fixing balusters in stone steps Hrishiraj Sarma/APIED/2013 Detail of R.C.C stair 19
  20. 20. Detail of wooden stair Hrishiraj Sarma/APIED/2013 Structural details of precast R.C.C spiral stair 20
  21. 21. Typical section of stair Hrishiraj Sarma/APIED/2013 21
  22. 22. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Location. Width of a stair (minimum 90 cm in residential use). Length of flight (maximum 12 steps ). Pitch of stair (should not exceed 40 degree and should not be flatter than 25 degree). Head room (should not less than 2.14m). Materials. Balustrade to ensure safety. Landing (should not be less than the width of stair). Avoid winders and extra materials. Use optimum use of materials. Step proportion. Hrishiraj Sarma/APIED/2013 22
  23. 23. 1. Tread + (2 X Riser) = 60 2. Tread X Riser = 450 (maximum) 1. 2. 3. 4. Tread= 30 cm Riser = 15 cm Width = 90 cm (Residential building), 180 cm in public building Height of newel post = 90 cm Hrishiraj Sarma/APIED/2013 23
  24. 24. Thank You Hrishiraj Sarma/APIED/2013 24

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