Staircase Structural Design Staircase Technical Terms:<\/b>
\n<\/b>1.\u00a0\u00a0\u00a0\u00a0 Stair:\u00a0\u00a0\u00a0 Steps arrangement of series to communicating in between two floors is known as a stair.
\n2.\u00a0\u00a0\u00a0\u00a0 Tread:\u00a0\u00a0\u00a0 The horizontal member which forms the upper surface of a step is called tread.
\n3.\u00a0\u00a0\u00a0\u00a0 Riser:\u00a0\u00a0\u00a0 It is the vertical front portion of a step.
\n4.\u00a0\u00a0\u00a0\u00a0 Rise:\u00a0\u00a0\u00a0 It is the vertical distance between the two upper surfaces of two successive steps.
\n5.\u00a0\u00a0\u00a0\u00a0 Nosing:\u00a0\u00a0\u00a0 The front edge of a tread is termed as nosing.
\n6.\u00a0\u00a0\u00a0\u00a0 Line of nosing:\u00a0\u00a0\u00a0 Imaginery line joining the nosings and parallel to the slope of stair is
\ntermed as line of nosing.
\n7.\u00a0\u00a0\u00a0\u00a0 Flier:\u00a0\u00a0\u00a0 A regular and rectangular step is known as flier.
\n8.\u00a0\u00a0\u00a0\u00a0 Flight:\u00a0\u00a0\u00a0 A series of continuous steps between two floors, or floor to landing or landing to landing is helps
\nin turning of stair.
\n9.\u00a0\u00a0\u00a0\u00a0 Landing:\u00a0\u00a0\u00a0 This is a horizontal platform which is provided between two flights to serve as a rest. It also
\nhelps in turning of stair.
\n10.\u00a0\u00a0 Slope or Pitch:\u00a0\u00a0\u00a0 The angle between the line of nosing and floor is known as slope.
\n11.\u00a0\u00a0 Strings and stringers:\u00a0\u00a0\u00a0 These are inclined members which support the steps. The strings may be provided
\non each of a step or in the centre to support steps as cantilever extending on each side.
\n12.\u00a0\u00a0 Soffit or plancer:\u00a0\u00a0\u00a0 Under surface of a flight is called soffit.
\n13.\u00a0\u00a0 Balusters:\u00a0\u00a0\u00a0 Vertical members which support the hand rail are known as balusters.
\n14.\u00a0\u00a0 Hand rails:\u00a0\u00a0\u00a0 Hand rails are provided on top of balusters. It safe guard’s the persons using the stairs. Hand
\nrails may be made of wood, masonry, R.C.C. or synthetic materials. It can be fixed even to the walls of
\nstaircase.
\n15.\u00a0\u00a0 Head room:\u00a0\u00a0\u00a0 The vertical distance between the line of nosings and the soffit or landing of a flight
\nimmediately above it is known as head-room. Head-room should not be less than 2.20 meters.<\/p>\n