Thursday, September 27, 2012

STAIRS

GENERAL
A stair is defined as a sequence of steps and it is provided to afford the means of ascent and descent before the floor or landing.The apartment or room of a building, in which the stair star is located, is known as a staircase and the opening or space occupied by the stair is known as a stairway.






      




TECHNICAL TERMS  

  • Baluster: This is the vertical member which is fixed between string and handrail give support to the handrail.
  • Baluster or barrister: The combined frame work of handrail and balusters is known as balustrade or barrister.  
  • Flight: This is defined as an unbroken series of steps between the landings.
  • Going: This is the horizontal distance between the face of two consecutive risers.
  • Handrail: The inclined rail over the string is known as handrail.The handrail serves as a guard rail and it should be provided at a convenient height so as to give grasp to the hand during ascent and descent.
  • Headroom: The vertical distance between the nosings of  one flight and the bottom of flight immediately above is known as the headroom and it should be of sufficient value so as not to cause any difficulty to the persons using the star.
  • Landing: The horizontal platform between two flight of a stair is known as the landing A landing facilitates change of direction and provides an opportunity for taking rest during the use of a stair.
  • Newel post: This is the vertical member which is placed at the ends of strings and handrails.
  • Nosing: The projecting part of the tread beyond the face of riser is known as a nosing.The team line of nosings is used to denote an imaginary line parallel to the strings and tangential to the nosings.It is useful in the construction of handrails. The undersurface of the handrails should coincide with the line of nosings.
  • Pitch: The angle of inclination of the stair with the floor is known as pitch.It also indicates the angle which the line of nosings makes with the horizontal.
  • Rise: This is the vertical distance between two successive treads.
  • Riser: The vertical or front member of the step, which is connected to the treads.
  • Run: The total length of a stair in a horizontal plane is known as the run and in include the length of landings also.
  • Scotia: This is an additional finish or moulding provided to the nosing or tread to improve the elevation of the step and to provide strength to the nosing.
  • Soffit: The under surface of a stair is known as the soffit.It is generally covered with selling or finished with plaster.      

4 comments:

Anonymous said...

i like it.......

abhay roy said...

Good post, If you have interior or exterior stairs, one thing that you will need is a beautiful handrail. A handrail not only finishes off your stairs, they are essential for safety. Here’s what you need to know about handrails for stairs

lee woo said...

The vision must be followed by the venture. It is not enough to stare up the steps - we must step up the stairs. See the link below for more info.


#stairs
www.ufgop.org

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