How many meters should a high rise building be built with a refuge floor?

In accordance with China's "Code for Fire Protection Design of Buildings".

GB50016-2014 stipulates that high-rise buildings with a building height of more than 100m.

A floor dedicated to fire safety for people to evacuate. For high-rise civil buildings over 100 meters, a refuge floor should be built every 15 floors.

Refuge storey is a floor used for fire evacuation in high-rise buildings, and high-rise buildings with a height of more than 100 meters are generally set up for fire safety for people to evacuate and evacuate.

Smoke-proof stairwell through the evacuation floor.

The refuge floor should be separated, the same floor should be dislocated, or the upper and lower floors should be disconnected, but personnel do not necessarily have to go through the refuge floor to go up and down.

Refuge floors are roughly divided into the following three types according to their enclosure methods:

1) Open refuge floor. The open refuge floor refers to the refuge layer without enclosure components around it, which is generally located on the top floor of the building or on the flat roof. This kind of refuge layer has a simple structure and small investment, but the protection ability is poor, and it cannot absolutely guarantee that it is not invaded by smoke, nor can it block rain, snow, wind and frost, and is more suitable for warm areas.

2) Semi-open refuge floor. The height of the surrounding area is not less than 12m protective wall with windows and fixed metal shutters in the upper part.

This refuge layer not only prevents the ingress of smoke but also has good ventilation conditions for natural smoke exhaust. However, it still has the disadvantage of an open refuge layer and is not suitable for cold areas.

3) Enclosed refuge floor (room). The enclosed refuge floor (room) is surrounded by fire-resistant protective walls and partition walls, and the interior is equipped with an independent air-conditioning system and smoke prevention and exhaust system.

Exterior walls and partition walls generally do not open doors and windows; If the doors and windows are opened, the Grade A fireproof doors and windows are used. The enclosed refuge floor protects against smoke and flames as well as from the outside climate.

High-rise buildings with a building height of more than 100 m are super high-rise buildings, and refuge floors should be installed.

In general, there is a refuge floor for every 15 floors, and the exact amount depends on the developer's plan, and the regulations vary depending on the type of building. According to the "Code for Fire Protection Design of High-rise Civil Buildings": public buildings with a building height of more than 100m should be provided with refuge floors (rooms), and the setting of refuge floors should not exceed 15 floors from the first floor of high-rise buildings to the first refuge floor or between two refuge floors.

What does the refuge floor mean.

An evacuation floor (room) is a floor (room) in a building where people temporarily take refuge from fire and its smoke hazards in the event of a fire. In general, public buildings such as hotels, office buildings, and complex buildings with a building height of more than 100 meters require a refuge floor. There are three types of common refuge floors: open, semi-open, and closed.

The net area of the refuge floor (room) should meet the requirements of the number of people on the design refuge floor, and it should be 5 people. For wards with a building height of more than 24 m, evacuation rooms shall be set up on each floor of the second floor or higher.

How to identify which layer is the refuge layer.

1. First of all, understand whether the building height belongs to a super high-rise building greater than 100m.

The main thing is to distinguish one point, that is, whether it is a super high-rise building larger than 100m? Generally speaking, ordinary high-rise residential buildings with more than 33-35 floors may belong to super high-rise buildings, and the location of the refuge floor, taking the floor height of 3m as an example, is generally around 15 to 16 floors.

But you should pay attention to the above, the above is only a general situation. In other words, if there is a ground floor or complex under a residential building, then the refuge floor will naturally be lowered, which may be 12 to 14 floors, or even lower.

2. There are differences between the house type and the ordinary house.

In fact, if you are a careful buyer, you will find that the design of the refuge floor is very different from that of ordinary houses. Generally speaking, the refuge floor can be built as a flat floor according to the situation, and the upper or lower part of the refuge floor can be built in combination with part of the space of the refuge floor.

Legal analysis: Super high-rise public buildings with a building height of more than 100 meters must set up a refuge floor every 15 floors (including 15 floors).

Legal basis: Criminal Law of the People's Republic of China Article 21 In order to protect the state, the public interest, the person, property and other rights of oneself or others from the danger that is occurring, the emergency evasion act taken as a last resort, and the damage is caused, shall not bear criminal responsibility. Where emergency evacuation exceeds the necessary limit and causes undue harm, criminal responsibility shall be borne, but punishment shall be commuted or waived.

The provisions of the first paragraph concerning the avoidance of personal danger do not apply to persons who have specific responsibilities in their duties or operations.

At least two refuge floors are required. According to the building design fire protection code (GB 50016-2014), the height between the first floor and the first refuge floor is not more than 50m, so that the personnel who cannot be evacuated by stairs in the event of a fire and want to stay on the refuge floor can be rescued by fire ladder trucks.

In addition, according to the physical consumption of ordinary people climbing stairs, combined with the layout and use management requirements of various mechanical and electrical equipment and pipelines, the height between the two refuge floors is not more than 50m. The rescue height of 50m mainly considers the current domestic main battle lifting fire trucks, such as the operation requirements of 50m high ladder trucks.

The provisions of the General Principles explain that high-rise buildings with a building height of more than 100 meters shall be provided with refuge floors (rooms), while the provisions of the High Regulations have stipulated that public buildings with a height of more than 100 meters shall be provided with refuge floors. High-rise residential buildings of more than 100 meters have been built in Beijing and Shanghai, and refuge floors (rooms) have been set up.

It is not easy to evacuate people to the outside in a short period of time for high-rise residential buildings (including units or corridors) of more than 100 meters. If you are not sure about the specification, you can look at the following explanations.

There are settings, and there are not necessarily how many settings are required.

The provisions of the General Principles explain that high-rise buildings with a building height of more than 100 meters shall be provided with refuge floors (rooms). The "High Regulations" have stipulated that public buildings over 100 meters should be provided with a refuge floor, based on the high-rise residential buildings (including units or corridors) of more than 100 meters, it is not easy to evacuate people to the outdoors in a short time, when the understanding of the code is not clear, you can look at the following provisions.

Definitely need (unless you're on the roof).

A 120-meter building should be equipped with 2 refuge floors, because the refuge floor requires a height of no more than 50 meters, the first refuge layer is 50 meters, the second is 100 meters, and the two refuge floors are not more than 50 meters, so that the 128 meters to the second refuge layer is not more than 50 meters, so at least 2 refuge floors should be set up.

Summary. Hello, I have helped you find out that if the building height does not exceed 100 meters, there is no need for a refuge floor, and if the building height does not exceed 100 meters, there is no need for a refuge floor?

Hello, I have helped you find out that if the building height does not exceed 100 meters, there is no need for a refuge floor, is the fire protection drawing designed in 2018, no more than 100 meters of residential whether there is a secluded room, based on?

Below 100 meters as stipulated by the national building, there is no refuge floor depending on the situation.

Basis provided? There are no documents, only answers, and the answer is that there can be no refuge floor.

If you have an answer, do you have to say it?

The red-headed file cannot be provided, only the answer can be provided to you.

There are rules that should be made for me to learn.

OK. Thanks for providing.

You are welcome! I'm waiting for you to believe.

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