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DESIGN OF EXIT SYSTEMS |
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| 1-Occupancy classification of building &Calculate Occupancy Load |
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TABLE 1
- OCCUPANCY LOADS |
| No |
,Usage |
m2/pp |
Area Type |
| 1 |
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1,5 |
Net |
| 2 |
Night Club ,Dance Hall ,Bar |
0,5 |
Net |
| 3 |
Exhibitoan Halls ,Record Studios |
1,5 |
Net |
| 4 |
Terminal Passenger Halls |
3 |
Net |
| 5 |
Class,Computer Rooms , Meeting rooms |
1,5 |
Gross |
| 6 |
Reseption areas,Waiting Rooms ,Atrium Floors |
3 |
Gross |
| 7 |
İndoor Sport Areas |
3 |
Gross |
| 8 |
Supermarkets ,Markets,Shops |
5 |
Gross |
| 9 |
Art Galleries,Museums ,Workshops |
5 |
Gross |
| 10 |
Fitness ,Aerobic Halls |
5 |
Gross |
| 11 |
Officies,Public Libraries |
10 |
Gross |
| 12 |
Dormitories |
10 |
Gross |
| 13 |
Manufactoring ,Packet areas |
10 |
Gross |
| 14 |
Hospital Patient Rooms -Details |
10 |
Gross |
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| 15 |
Kitchens,Washing Rooms |
10 |
Gross |
| 16 |
Hotel Rooms |
20 |
Gross |
| 15 |
Gross floor area of each room (including other areas such as living area, toilet, etc) |
| 17 |
Hospital Labs ,Pharmacies |
20 |
Gross |
| 18 |
Doctor rooms ,Student Lab |
5 |
Gross |
| 19 |
Warehouses ,Mechanical Rooms |
30 |
Gross |
| 20 |
Car Park Areas |
30 |
Gross |
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| 1.1-Wall betwwen guestrooms and corridor must have min 1 hr fire rate. |
| 1.2-Guestrooms doors opening to corridor must have min 0.5 hr fire rate. |
| 1.3-If guestroom beds more than 20 or number of guest floors more than 2 ,there must be min two exits |
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| 2
- EXIT REQUIREMENT |
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TABLE 2
- EXIT REQUIREMENTS |
Occupancy Type |
Maximum Travel Distance (m) |
Number of Persons Per Unit Width .(50 cm) |
Minumum Width (m) |
Max. Dead End (m) |
| One- way |
Two-way |
Door Openings |
Staircases |
Corridors &Ramps |
Stairs |
Corridors |
Corridors |
Non Sprinklered
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Sprinklered
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Non Sprinklered |
Sprinklered |
Exit to Outdoor |
Other Exits &Corridor Doors |
Non-Sprinklered |
Sprinklered |
High Hazard |
10 |
20 |
20 |
35 |
50 |
40 |
30 |
50 |
1 |
1.2 |
10 |
20 |
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15 |
25 |
30 |
60 |
100 |
80 |
60 |
100 |
1 |
1,2 |
15 |
20 |
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15 |
25 |
45 |
60 |
100 |
80 |
60 |
100 |
1 |
1.2 |
15 |
20 |
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15 |
30 |
45 |
75 |
100 |
80 |
60 |
100 |
1 |
1.2 |
15 |
20 |
| Carparks |
15 |
25 |
45 |
60 |
100 |
80 |
60 |
100 |
1 |
1.2 |
15 |
20 |
| Assembly Buildings.Cinemas,Meeting rooms ,Restaurants |
15 |
25 |
45 |
60 |
100 |
80 |
60 |
100 |
1 |
1.2 |
15 |
20 |
| Schools ,Educational Buildings |
15 |
25 |
45 |
60 |
100 |
80 |
60 |
100 |
1 |
1.5 |
15 |
20 |
| Hospitals ,Healthcare facilitiy |
15 |
25 |
30 |
60 |
30 |
80 |
15 |
30 |
1 |
2 |
15 |
20 |
| Hotels,Hostels,Dormitories |
15 |
20 |
30 |
60 |
60 |
60 |
45 |
50 |
1 |
1.2 |
15 |
20 |
| Apartmants |
15 |
30 |
30 |
75 |
50 |
40 |
30 |
50 |
1 |
1.2 |
15 |
20 |
| Apartmants (External Corridor ) |
20 |
40 |
45 |
75 |
50 |
40 |
30 |
50 |
1 |
1.2 |
15 |
20 |
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| 2.1-Maximum travel distance to at least one exit shall not exceed the travel distance allowed to reach an exit for two ways. |
| Hint:There is no limit on the other exit route. |
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TABLE 3-Doors ,Corridors ,Stairs |
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No. of Occupants |
Min. No of Doors |
Type of Door |
Min. Width of Corridor
mm
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Min. Width of Stairs
mm |
1-50 |
1 |
Swing to İnside or Outside |
1100 |
1100 |
51-100 |
2 |
Swing to Outside |
1100 |
1100 |
101-500 |
2 |
Swing to Outside &Panic Bar |
1100 |
1100 |
501-1000 |
3 |
Swing to Outside &Panic Bar |
1500 |
1100 |
1001-2000 |
4 |
Swing to Outside &Panic Bar |
2000 |
1100 |
More than 2001 |
4 |
Swing to Outside &Panic Bar |
2000 |
1100 |
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| For Hospitals Min Width of Corridor is 2mt |
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| Where a room or space is required to be provided with two exits, |
| 3.1- In buildings equipped throughout with automatic sprinkler protection, exit doors in each room should be separated by at least 1/3 of the diagonal dimension of the room. In other words, if the room has two doors but they are very close to each other, it only counts as one door and the maximum occupant load would still be limited to 50 or fewer. In buildings without automatic sprinklerprotection, the doors must be separated by at least a 1/2 the diagonal dimension of the room . |
| 3.2-At least one of the exits must be in travel distance limits |
| 3.3-Each exit shall be of sufficient width to accommodate not less than half the total occupant load. |
| 3.4-Such exits shall be remotely located from each other and shall be arranged and constructed to minimise the possibility that more than one can be blocked by any fire or other emergency condition. |
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| 4.1-Exit doors should lead to a corridor, an exit stair enclosure, or directly to the exterior of the building |
Auditorium where people exit through a lobby, egress through an adjacent room (the lobby) will be acceptable. |
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| 4.2-Exits should not pass through |
| Adjacent rooms |
| Kitchens |
| Storage room |
| Folding Partition. (Doors in operable partitions are not considered exits). |
| Toilettes |
| Revolving doors |
| Elavators |
| Escaltors |
| Roller shutters |
| Sliding Doors |
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| 4-3-Distance between doors (exits) . |
| With automatic sprinkler protection, exit doors in each room should be separated by at least 1/3 of the diagonal dimension of the room |
| Without automatic sprinkler protection, exit doors in each room should be separated by at least 1/2 of the diagonal dimension of the room |
| Sample: For a room of 50m x50m ,diagonal distance is 70 mt. |
| Min.Distance between doors must be for sprinklered building =70*(1/3) =23 mt for unsprinklered building is=70*(1/2) 35 mt . |
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| Exits shall be remotely located from each other and shall be arranged and constructed to minimise the possibility that more than one can be blocked by any fire or other emergency condition |
| More About Exit or Exit Access Doorway Arrangement. |
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