Means of Evacuation An 16 Japan present 3wbpwg [Read Only]

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6. Means of Evacuation

Evacuation safety in the entire building is stipulated so as to ensure the safe evacuation of people inside the building to the ground outdoors, in case of a disaster, and particularly, a fire. The following means must be put in place: 1 Evacuation route should be established. room →corridor→evacuation stairs→entrance to evacuation floor →passage in the compound→road or open area 2 Rescue means from outside should be put in place, such as an emergency entrance or emergency elevator. 3 Means to facilitate evacuation should be put in place, such as smoke ejectors, emergency lighting, etc. The following means must be put in place: 1 Evacuation route should be established. room →corridor→evacuation stairs→entrance to evacuation floor →passage in the compound→road or open area 2 Rescue means from outside should be put in place, such as an emergency entrance or emergency elevator. 3 Means to facilitate evacuation should be put in place, such as smoke ejectors, emergency lighting, etc. 1 Buildings larger than a prescribed scale, such as theater, movie theater, or hall, where an undetermined number of people use 2 Buildings of 3 stories or higher 3 Buildings covering a floor area of over 1,000 m 2 4 Buildings with no openings, such as windows, effective for air exhaustion 45 { Direct Stairs The distance from any given part of rooms on upper floors or basement floors of a building to the direct stairs walking distance should not exceed the predetermined distance. Floors used for certain purposes or of certain scales, such as seating floors of a theater, should have two or more direct stairs. Regulation for Means of Evacuation - 1 { Evacuation Stairs Special Evacuation Stairs The following direct stairs should have evacuation or special evacuation stairs in principle: ƒ Evacuation stairs: 1 Direct stairs leading from the 5th floor or higher or the 2nd basement or lower 2 Two or more direct stairs of a building having a retail store on the 3rd or higher floors ƒ Special evacuation stairs: 1 Direct stairs leading from the 15th floor or higher or the 3rd basement or lower 2 Of direct stairs of a building having retail stores on the 3rd or higher floors: i one or more direct stairs leading to a retail on the 5th or higher ii all direct stairs leading to a retail on the 15th or higher Evacuation stairs Special evacuation stairs Outside No influence of smoke Return wall Smoke Smoke Room Room Corridor 750 or wider Window should be a fire-prevention equipment having 20-minute fire shielding performance, be fixed, and have an open area of less than 1 m 2 . Fire-prevention equipment having 20- min. fire shielding performance Adjacent anteroom Evacuation direction Fixed door Window openable toward the outside Specified fire- prevention equipment Inside Outside 500 or hi gher 900 or wider Fire-prevention equipment having 20 min. fire shielding performance 46 { Smoke Exhaust Buildings where a large number of people use or reside should have appropriate means of smoke exhaust in order to eliminate smoke in the early stage of a fire that starts in any given room or is entering into other rooms beyond the fire compartment. { Emergency Lighting Emergency lighting should be installed in the following areas of a building used by a large number of people in order to ensure minimum action necessary for evacuation in the event of power outage: 1 Rooms 2 Corridors that serve as evacuation routes from any room to the outdoor ground, stairs and other corridors Regulation for Means of Evacuation - 2 47 { Installation of emergency entrance Emergency entrances must be installed on the 3rd floor or higher floors lower than 31 m.

7. Emergency Entrance and Elevator