Page 115 - Building Regulation Design Guidelines - Architecture Book (Blue Code)

SEcTION: 13 VERTICAL CIRCULATION ELEMENTS SEcTION: 13 VERTICAL CIRCULATION ELEMENTS

13.1.12 The minimum clear vertical height from the bottom margin of 13.1.16 The staircase location shall be easily approachable from any part
the landing finishes to the pedestrian passageway shall be 2.4 of the building, in which the farthest point shall not exceed 30.0
meters. (figure -45) meters in distance. (figure -46)
Suspended Element
E E

E E
≥ 2.4 m
Wall

≥ 2.4 m ≥ 0.9 m

W-Landing width
Figure-46 Staircase Location via User

W ≥ (1.1 m or 1.5 m) Depending on Building Types 13.1.17 Landing platforms shall at least be 0.9 meter depth if doors swing
Figure-45 Headroom Measurement inwards, and 1.5 meter if doors swing outwards. (figure -47)

13.1.13 The main staircase in residential, commercial and public Landing Landing
buildings must be made of fire resistant material (with the with with
exception of villas). Sufficient natural ventilation and lighting Inward Outward
Opening
must be available on staircases, through windows that have Opening
direct access to open air, or through ducts and shafts. ≥ 1.5 m
13.1.14 The staircases of towers that are more than 10 floors are ≥ 0.9 m
exempted from the rule of natural lighting and ventilation. But
they must be provided with mechanical and electrical ventilation
and lighting, according to the conditions and specifications of
E.H.S.. UP UP
13.1.15 There shall be a protective barrier on the empty side of the Figure-47 Landing Provision
staircase higher than 1.0 meter (rail or balustrade) whose
minimum height shall be 0.9 meter, and maximum clearance 13.1.18 Refer to the Authority’s related code for staircases requirements
among the vertical rods of the stair railing shall be 0.125 meter. In for people with disability.
case the staircase width is more than 2.1meter, an intermediate
barrier shall be provided.

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