Is not the staircase and the front room is set to have ventilated windows, must be set separately before the front room?
What is the principle of this setting?
Is there a difference between the smoke staircase and the closed staircase?
Ask for help.
High-rise smoke staircase need front room, closed staircase between.
Smoke Stairway Air Shaft Set:
1, if the building is more than 50 meters of public buildings or more than 100 meters of residential buildings, smoke staircase and its front room, combined with the former room, whether natural exhaust, should be set up mechanical pressure air system;
2, in addition to the first case, if the smoke staircase and its front room, combined with the front room are outside the window and meet the smoke area, then do not have to set up a mechanical pressure air supply system; if smoke staircase and before The room can not be natural smoke, then only the smoke staircase pressure air supply, the former room without air; if the front room of natural smoke, smoke staircase can not, then only smoke on the staircase ; If the smoke staircase natural smoke, the front room can not, then the front chamber pressurized air, smoke staircase do not have pressure to send air.
Closed staircase do not have to set the wind shaft, but no windows outside the closed staircase will be set to smoke staircase.
Yes. If the building is more than 50 meters of public buildings or more than 100 meters of residential buildings, smoke staircase and its front room, combined with the front room, whether natural exhaust, should be set up mechanical pressurized air supply system.
In the "Building Design Fire Code" and "high-rise civil building design fire protection", the fire elevator front room, smoke staircase front room, fire elevator and smoke staircase between the front of the smoke and smoke problems and its size Made strict rules.
Area requirements:
1. The area of the front room, public buildings should not be less than 6.00 square meters, residential buildings should not be less than 4.50 square meters. - "high-rise civil building design fire safety norms"
2. The use of the front room area: public buildings should not be less than 6.0 square meters, residential buildings should not be less than 4.5 square meters; the use of the former room area: public buildings, high-rise buildings and high-rise warehouse should not be less than 10.0 square meters, residential buildings should not be less than 6.0 square meters. --"Architectural design code for fire protection"
Yeah! At least the air is better! I think there is a wind shaft.
