What is the area of the activity room that allows a single exit in the fire code

When a public activity room is set up in the dormitory, if there are less than 100 people, the per capita area is square meters; More than 101 people, the per capita area is square meters. The minimum area of the common room should not be less than 30 square meters.

If there is only one exit, the area of the common room should not exceed 60 m2.

According to the provisions of the Code for Fire Protection Design of Buildings (GB50016-2006), if the activity room is located between two safety exits and the net width of the evacuation door is not less than meters, the area of the activity room can be limited to less than 120 square meters.

jgj36-2005

The public room (space) in the dormitory building should be set up on each floor, with less than 100 people, and the per capita usable area is; More than 101 people, the per capita usable area is. The minimum usable area of the common room (space) should not be less than 30m2.

The 60 square meters upstairs should be the reference GBJ16-87, and the new version of GB50016-2006 does not have this statement, I think if the number of people is less than 50 people should be unlimited.

GBJ16-87 has been abolished, but if you want, you can take a look, and it also has a saying about the room at the end of the corridor, if the farthest point to the door is less than 14m, the room can be 80 square meters, but there should be an outside door. See for yourself.

If the office area is more than 120 square meters, it is usually required to have 2 doors (note that it is not a double door).

The specific requirements are in the article of the Code for Fire Protection Design of Buildings, with reference to the provisions of paragraphs 1 and 2. This 120 square meters means that when the office is set between two safety exits or on both sides of the bag walkway, in some special cases, although the area does not reach 120 square meters, it is also possible to set up more than 2 safety exits (doors) when it is set at the end of the bag walkway or when the indoor layout does not meet the requirements of the evacuation distance.

Article 10 of the Fire Protection Law, for the fire protection filing of decoration projects below 300 square meters, only construction projects, decoration and Wistron decoration that need to apply for construction permits only need 24; The construction project with an investment of less than 300,000 yuan or a construction area of less than 300 square meters, the installation of equipment, as well as the construction of urban municipal infrastructure projects, and decoration projects of more than 300 square meters need to be filed for fire protection.

Article 13 and the Ministry of Public Security "Regulations on the Supervision and Administration of Fire Protection of Construction Projects" Article 24 stipulates, decoration and supporting lines, may not apply for a construction permit.

According to the requirements of the fireproof partition, the corresponding level of fireproof door can be set, as for the single door, mother and child door, double door is to be determined according to the width of the door, as for the width should be based on the number of people in the room and other factors.

Normally:

Fire partitions, in general, each floor is divided into different fire partitions by a fire-resistant floor slab.

That is, each layer is an independent fire zone.

So for your question, two safety exits on the first floor of a building are the same as two full exits for a fire partition.

If it is a residential building, there is no need to consider the fireproof partition, only the concept of fireproof unit, then it is between the two safety exits of the building, if the public building, then it may be a layer as a fireproof partition, or it is possible that the plane area is relatively large, there are many fireproof partitions in the plane of the first floor, so the safety exit is relative, there is no unified definition, for the fireproof partition, straight to the outside, directly to the closed stairwell or straight to the smoke-proof staircase front room, Or the evacuation openings that lead directly to the adjacent fire partition are defined as safety exits, so different types of buildings are relative due to the different fire zones and fire protection units.

Between the two safety exits of a fire partition.

It's all about what you're going to do with the house.

Generally, if it is non-flammable, non-toxic, and well-ventilated, a safety exit is OK, provided that no partition walls are used in the room to block the safe passage. If you use this house to make some chemicals, it will definitely not work, there must be two safe exits and exits, and the safety exits and exit directions should be marked on the floor and walls.

If there is no partition, at least 3 fire extinguishers should be equipped, as the regulations require 2 fire extinguishers in 400 square meters.

GB50016-2006 Code for Fire Protection Design of Buildings

The safety exits of the plant should be arranged in a decentralized manner. The horizontal distance between the nearest edges of the two adjacent safety exits of each fire partition and each floor of a fire partition shall not be less than.

The number of safety exits for each fireproof partition and each floor within a fireproof partition of the plant shall be calculated and determined, and shall not be less than 2; One safety exit can be installed when the following conditions are met:

1. Class A workshop, with a floor area of less than or equal to 100m2 per floor, and no more than 5 producers at the same time;

2. Class B workshops, with a construction area of less than or equal to 150m2 on each floor, and the number of producers at the same time does not exceed 10 people;

3. Class C workshop, with a construction area of less than or equal to 250m2 on each floor, and the number of producers at the same time does not exceed 20 people;

4. Class D and E workshops, with a construction area of less than or equal to 400m2 per floor, and the number of producers at the same time does not exceed 30 people;

5. Underground or semi-underground workshops or basements and semi-basements of factories with a construction area of less than or equal to 50 m2 and no more than 15 people staying on a regular basis. ”

According to paragraph 4, in principle, if you have an area of more than 400 square meters, you must have two safety exits.

According to the combustion performance of the equipment and test materials in your laboratory, which are non-combustible, non-combustible, and only 2-3 people, you can consider only one exit, which can also achieve the purpose of timely evacuation.

It is recommended to open a door to save money.

High-rise civil buildings.

There should be no less than two safety exits in each fire partition of high-rise buildings, and they should be arranged in a dispersed manner to meet the needs of the distance between the two safety exits. However, if one of the following conditions is met, a safety exit can be set up.

Arrangement of safety exits.

Evacuation stairs for residential buildings in commercial and residential buildings should be set up independently. The two evacuation stairs of the tower high-rise building should be set independently, and when there is indeed difficulty, scissor stairs can be set up, and the following provisions should be met:

Scissor stairwells should be smoke-proof stairwells.

Between the stairs of scissors stairs, solid wall partitions with fire resistance limits not lower than are set up.

Scissor stairs should be set separately in the antechamber. A front room can be set up in a tower house when it is really difficult, but the two staircases should be provided with a pressurized air supply system separately. That is, when the two entrances of the scissors staircase are combined to use a smoke-proof front.

For the setting of safety exits in multi-storey buildings, only the Code for Fire Protection Design of Buildings shall apply; For the setting of safety exits in high-rise buildings, only the Code for Fire Protection Design of High-rise Civil Buildings is applicable; These two norms are not related to each other.

The high-level is according to the high-standard, and the multi-layer is according to the multi-standard, and there is no relationship between inclusion and non-inclusion. The scope of application of the two specifications is very clear.

Multi-storey buildings are subject to "low regulations" and high-rise buildings are subject to "high regulations", and their application scopes are different.

In the fire regulations, the width of the main indoor passage should generally not be less than 2 meters. The number of doors set by situation is not necessarily two, and the specific analysis is as follows:

The doors and passages of the warehouse are not blocked. When the goods are stacked, the stacking distance, wall distance, column distance, and beam distance should not be less than 50 cm, and the walkway or stacking distance should be arranged below the warehouse lighting as far as possible.

There is no hard rule to have a few doors and windows, if the warehouse is too large, it is inconvenient to enter and exit the goods through one door, and we must pay attention to the placement of fire-fighting equipment, as well as the partition between the warehouse and the living quarters.

It is not necessary to set up two doors, when limited by the building layout, the construction area is greater than 60m2 and less than 100m2 of the office room is indeed difficult to set up two exits and the straight-line distance from the farthest point of the room to the safety exit is not more than 15m, an exit can be set up in one of the following conditions:

1. There are no more than 10 office staff in the office room.

2. The net width of the door should not be less than.

First of all, the number of personnel in each fire protection zone of the underground building should be calculated, and the calculation rules are detailed in the "Building Regulations", and then the evacuation width should be calculated according to the number of personnel, and then the number of safety exits should be determined.

Code for Fire Protection Design of Buildings GB 50016-2006

Except as otherwise provided in this Code, the respective total widths of evacuation walkways, safety exits, evacuation stairs and room evacuation doors in buildings shall be calculated and determined.

Number of Evacuation Exits = Total Evacuation Width Minimum Width of Evacuation Exits.

There are regulations on the area and the number of people.

Yes, there are two safety exits to be set up.

Basis: Article 1 of the 2014 Code for Fire Protection of Building Design: For residential buildings with a building height greater than 27 meters but not more than 54 meters, when each unit is provided with an evacuation staircase, the evacuation staircase shall lead to the roof, and the evacuation staircase between the units shall be able to communicate through the roof, and the door shall be a Class B fire door.

When it cannot be connected to the roof or cannot be connected through the roof, 2 safety exits should be set up.

The meaning is to be used for fire protection and fire prevention, and it is necessary to report for fire inspection before opening before operating. It is usually equipped with fire extinguishers, fire hydrants, more than two safety exits, fire emergency lighting and evacuation signs.

The definition of a commercial service network is "a small business building such as a shop, a post office, a savings office, a barber shop, etc., which is located on the first or second floors of a residential building, and the floor area of each separate unit is not more than 300".

"Gross floor area" refers to the total floor area of each small commercial building located on the first floor, the first floor and the second floor of a residential building, which are completely separated from each other. For example, if the upper and lower floors of a commercial service network are directly connected indoors, the "floor area" is the sum of the floor area of the commercial service network on the first and second floors.

Below 300 square meters can be walked according to the residential specifications, and more than 300 square meters will become commercial and residential buildings. The ground floor should be followed by commercial design specifications.

The fire protection requirements are also high, such as 2 evacuation openings, then there are 2 stairs upstairs or 1 staircase plus an outer corridor, etc.

This involves the question of whether to set up automatic fire-fighting facilities, which directly affects the input.