You are viewing an archived code
Loading...
Height and area limitations in buildings of mixed occupancy shall comply with the requirements of Section 13-48-100.
(Prior code § 48-12.4)
Each occupancy in a building of mixed occupancy shall be separated horizontally and vertically from any adjoining occupancy by construction materials providing fire resistance as established in Table 13-56-280 as set out in this section. Separation between Type III schools and A, B, C-1, C-2, and E occupancies, except day care centers with children less than two years of age, may be reduced to one hour. Separation between Type III schools with children less than two years of age and A, B, C-2, E and F occupancies may be reduced to two hours.
Separation in buildings of mixed occupancies may be reduced by one hour from the fire resistance requirements as established in Table 13-56-280 as set out in this section when the building is equipped throughout with an approved automatic sprinkler system which is supervised except that separations between day care centers with children less than two years of age and A, B, C, C-1, C-2, E and F occupancies shall not be reduced to less than two hours.
(Prior code § 48-12.5; Amend Coun. J. 9-13-89, p. 4604; Amend Coun. J. 7-14-93, p. 35324; Amend Coun. J. 10-30-96, p. 31214)
Occupancy Classification | A | B | C-1 | C-2 | C-3 | D | E | F | G | H-1 H-2 | H-3 | I |
Occupancy Classification | A | B | C-1 | C-2 | C-3 | D | E | F | G | H-1 H-2 | H-3 | I | |
A. | Residential | 3 | 4 | 2 | 4 | 4 | 1(d) | 1 | 4 | 4 | 4 | (b) | |
B. | Institutional | 3 | 4 | 4 | 3 | 4 | 4 | 4(c) | (b) | 4(c) | 4(c) | (b) | |
C-1. | Large assembly | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4(c) | 4(c) | 4(c) | (b) | |
C-2. | Small assembly | 2 | 4 | 4 | 4 | 2 | 2(d) | 2 | 4 | 4 | 4 | (b) | |
C-3. | Schools | 4 | 3 | 4 | 4 | (e) | 4 | 2(d) | 4 | 4(c) | 4(c) | 4(c) | (b) |
D. | Open air assembly | 4 | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 4 | 4 | (b) | |
E. | Business | 1(d) | 4 | 4 | 2(d) | 2(d) | 4(d) | (d) | (a)(d) | (a)(d) | (a)(d) | 2(d) | 4 |
F. | Mercantile | 1 | 4(c) | 4 | 2 | 4 | 4 | (a) | 3 | (a) | 3 | (b) | |
G. | Industrial | 4 | (b) | 4(c) | 4 | 4(c) | 4 | (a)(d) | 3 | (a) | 4 | 4 | |
H-1 & H-2. | Storage | 4 | 4(c) | 4(c) | 4 | 4(c) | 4 | (a)(d) | (a) | (a) | 4 | 4 | |
H-3. | Garages | 4 | 4(c) | 4(c) | 4 | (c) | 4 | 2(d) | 3 | 4 | 4 | 4 | |
I. | Hazardous use | (b) | (b) | (b) | (b) | (b) | (b) | 4(d) | (b) | 4 | 4 | 4 | |
(a) No special separation required. (b) Mixed occupancy not permitted. (c) Unpierced separations. (d) A technology center shall have a minimum two-hour separation from all other occupancies including other business occupancies, regardless whether the subject building is protected by a sprinkler system. (e) For trade or technical schools, shop portions of schools may be built to comply with requirements for industrial buildings, but shall have four-hour fire separations with double Class A fire doors between shop portions and academic portions of buildings. | |||||||||||||
(Added Coun. J. 6-28-00, p. 36679, § 5)
(a) The interior of any building which adjoins a subway or other public space below grade not open to the sky, shall be separated from subway or other public space by walls or floors of solid masonry or reinforced concrete, or equal with a fire-resistive rating of not less than four hours.
(b) Every opening through a wall, required by this section to be used as an exit, shall be protected by a labeled outswinging Class A fire door. Such doors shall be equipped with approved panic hardware and may be single or pairs. Every other opening through such wall, not required as an exit shall be protected with a Class A fire door.
(c) No wall used in a separation required by this section shall be located more than twenty feet back from the subway or other public space. Show windows and display spaces may be located on the public side of such separating wall, but there shall not be more than one door opening into each show window or display space.
(d) Nothing in this section shall be construed to prevent the entire space under any building or any portion of such space, or any passage through a building from being used as a right-of-way or switching space for railroads or public carriers; provided, however, that such spaces or passages shall not be designed or used as a public thoroughfare nor as a parking space for motor vehicles where such use is prohibited by other sections of this Code; and provided further, that such space is separated from the interior and adjacent parts of the building as required by this section for subways.
(Prior code § 48-12.6)
Loading...