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Aluminum sliding windows are designed for spaces that do not want windows projecting from the wall. The window is designed to have one or two window sashes sliding horizontally within the frame.
This style of window is very popular in office blocks and developments in country areas where there is a requirement for insect screens.
Staircase
Elements of stairs
1. Baluster:
The vertical member which is fixed between string and handrail to give support to the handrail.
2. Balustrade or barrister:
The combined framework of handrail and balusters.
3. Flight:
This is defined as an unbroken series of steps between landings.
4. Going:
The horizontal distance between the faces of two consecutive risers.
5. Handrail:
the inclined rail over the string is known as a handrail. Handrail serves as a guard-rail and it should be provided at a convenient height so as to give grasp to hand during ascent and descent
6. Landing:
the horizontal platform between two flights of a stair. A landing facilities change of direction and provides an opportunity for taking rest during the use of a stair.
7. Newel post:
The vertical member which is placed at the ends of flights to connect the ends of strings and handrail.
8. Nosing:
The projecting part of the tread beyond the face of riser.
9. Riser:
The vertical or front member of the step, which is connected to treads.
10. Step:
A combination of tread and riser. The common types of steps: bullnose step, commode step, dancing step, flier, round-ended step, splayed step, winder.
11. Tread:
the horizontal upper portion of a step.
12. Waist:
the thickness of structural slab in case of an R.C.C. stair.
Case study
Quarter turn stairs is used in the case study., they make an 90o turn to reach the upper or lower floor. It is a stair which turning through one right angle. The L stairs has one landing at some point along the flight of steps. If the landing is near the top or bottom of the stairs, the term Long L is used to describe the difference.
Quarter turn stairsof the case study
Finishers
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