Have you considered the hidden worries of high-rise residential buildings? How's it going?

Buildings must use the most advanced building materials and construction technology, which is very expensive and the daily management cost is not low, so some high-rise buildings with high vacancy rate are overwhelmed. In addition, it affects the urban landscape, causing light pollution and many environmental problems.

2. It is inconvenient to use.

There are many workers in the super high-rise building. To get to the top floor, you even have to change elevators in the middle of the floor. If the elevator breaks down, it will bring more trouble to the residents. The commuting summit will cause crowded floors, and there will also be peaks of people and traffic around super high-rise buildings. In case of water and power failure, the elevator will be annoyed.

The elevator speed is too fast.

This may cause physical discomfort, especially if there are old people and children at home. At present, the speed of ordinary residential elevators is about 1.75 m/s, and it takes about one minute for the elevator to reach the 33rd floor from the lowest basement. In order to meet the fire regulations, high-speed elevators are usually used in super-high-rise residential projects. For example, the elevator with a running speed of 4 meters per second used in existing projects can be controlled within one minute from the third floor underground to the 60th floor above ground.

4. The ground floor is relatively humid.

Even the first overhead floor of the bottom unit is still troubled by "humidity" due to the influence of sunshine time and ventilation conditions.

5. Elevator is very expensive.

Residents living in high-rise buildings will have longer elevator waiting time and ride time during peak hours; With regard to the charging standard of elevator sharing electricity fee, some property companies implement uniform standards for all floor users, but some companies also implement segmented charging. At present, the cost of high-rise elevators generally starts from the third floor, and with each additional floor, the elevator cost will increase correspondingly in 3 yuan.

6. Reduced usable area

Because of the thickness of the shear wall, the usable area is relatively reduced. For residential buildings with more than 40 floors, the thickness of shear wall will increase correspondingly because of the increase of load on the low-rise units of the building. In practical application, the maximum thickness of 1- 10 shear wall is 300-350 mm, and the above gradually decreases. Some buildings will design shear walls at locations that do not affect the actual use of space in apartment design.

7, fire safety issues

Fire-related facilities, ladders can only go to the 30th floor. On the one hand, it is the fire ladder truck outside the building, which can reach 28-30 floors at present. It is difficult for residents above this height to get help with the external fire escape when facing the fire.

The fire elevator inside the building must go from the lowest floor (including basement) to the highest floor, and the running time from the lowest floor to the top floor should not be longer than 60 seconds.

A large number of combustible materials are used in the decoration of super high-rise buildings, and a large number of wires and cables are distributed inside the building. Once the fire is formed, it will be very rapid. The ladder of the fire department is only about 100 meter. If there is a fire in a 300-meter-high building, it is impossible to rescue it. In addition, there are unpredictable disasters such as earthquakes and man-made destruction.

Buildings are getting higher and higher, with thirty or forty floors, and high-rise buildings are gradually favored. Although high-rise buildings can enjoy more beautiful scenery, they also have some shortcomings. You need to know these questions about the top.

1. There are some hidden dangers in fire safety. At present, the fire ladder truck can reach up to 28-30 floors. If the residents above 30 floors need the support of the fire ladder truck, the rescue time will be greatly increased because the floors are too high.

2. The elevator has a long waiting time. Generally, the time for high-rise residents to wait for the elevator is longer than that for low-rise users, which increases the time cost of residents. In some cities. For elevators, the charging standards are different, and the cost sharing of high-level users is higher.

The higher the floor, the less usable area. The higher the floor, the weaker the bearing capacity of the lower floor. In order to enhance the bearing capacity of low-rise buildings, builders often increase the thickness of shear walls, which increases with the increase of floors and reduces the relative practical area.

High-level people are more favored by thieves. Many buyers think that the lower floors are more vulnerable to theft, but it turns out that the upper floors are more favored by thieves.

5. The top floor has the weakest waterproof ability. Generally speaking, the top floor has stricter requirements for thermal insulation and waterproof layer than other floors. However, the top floor will be exposed to the sun and rain for a long time, and the waterproof and thermal insulation capacity will deteriorate with the passage of time, and quality problems such as water leakage and high temperature will continue to appear.

6. High-level air quality is good but privacy is poor. With the increase of floors, the air quality will be improved to some extent. Low-rise residents can improve the privacy of their rooms through obstacles such as branches and buildings. The higher the floor, the fewer obstacles and the worse the privacy of the room.

There are several hidden dangers of high-rise buildings. First, the elevator is broken and it is inconvenient to go downstairs. Second, it is not convenient to escape when encountering some unexpected situations. You're just thinking about these two questions.

Then there are people who like to live in tall buildings. Its advantages are: first, good vision, second, good lighting, third, no or little interference from road noise, and fourth, good air.

There are advantages and disadvantages from two aspects. What are its shortcomings? It's just that the elevator mentioned above is broken to escape. Er, it's inconvenient to go downstairs. Secondly, there is an emergency. Let me talk about 1 first. In fact, the problem of 1 no longer exists, that is, every brand of elevator has a partial relocation, which means that maintenance personnel are available 24 hours a day. So when we see problems with the elevator, it will be quick, but elevator personnel will come to repair it within a few hours. At the first and second points, there are basically two elevators on all floors. When there is a problem with one elevator, another elevator can be used. In other words, one can completely repair the other. You are the problem of the sound of the waves. The question of escape is really whether it is the sound of the waves. The problem of escape is indeed that it is not an earthquake. This kind of situation is rare, very rare. You won't have this problem once in recent years or longer, will you? So some people are too worried and worried, which is not a good thing.

High-rise residential buildings, living on relatively high floors, mainly have the following security risks:

1, water supply problem, high-rise water supply is pressurized, and the water between water tanks is not as good as the tap water at the bottom after storage. In case of power failure, the water supply may also stop.

2. Fire protection. Now the ladder is only thirty or forty meters, and it is difficult to escape when the top is on fire.

3. The elevator in the residential area is aging, and its service life is only 20 years. At that time, the owner needs to pay for the replacement, and the elevator is prone to failure after aging, and the trapped elevator will be miserable.

4. In case of natural disasters, the power and water will be cut off for a few days, which is miserable and it is difficult for the elderly to eat.

In fact, high-level security risks can be ignored, and the current security measures are very good! The effect of lighting and ventilation in living higher is really great, unlike low-rise residential buildings. The sunshine time on the balcony in winter in the north is very short, giving people the impression that the room is very cold in winter. Open more windows in summer and try to ventilate and cool down. Sorry, your house is blocked by the tall building in front, and there is no wind! It's stuffy in the room! If you are not too old or afraid of heights, buy a high-rise apartment!

The number of high-rise buildings has increased. I wonder if you have noticed that there are also many fire hazards here, such as some high-rise fire-fighting equipment is incomplete, fire exits are not smooth, security doors are closed, and external wall insulation materials are not up to standard. It is very necessary to learn some fire fighting knowledge. No one can guarantee that no one will encounter a fire in his life, and no one can prove that he can be rescued in time.

Common hidden dangers around you

Fire?Engine?Access?

Take up more

Stair formation

Grocery warehouse

Fire?Extinguisher?

Partial deletion

Normally closed fire doors are in a normally open state.

Hidden danger one:

Some fire-fighting equipment is missing, and the necessary fire-fighting facilities in high-rise residential buildings should be equipped with automatic fire-fighting equipment such as fire hydrants, sprinklers and smoke detectors, as well as fire elevators and evacuation indication systems. In some high-rise residential quarters, the phenomenon of incomplete or lost fire fighting equipment is very common. Some buildings can't even find fire extinguishers, and even with fire-fighting equipment, fire extinguisher box and fire hydrant boxes are empty. Here, I would like to remind residents not to keep public fire-fighting equipment for themselves, but to take good care of it. In addition, if the fire-fighting equipment is incomplete or lost, the property management company should complete it in time.

Hidden danger 2:

Fire exits are mostly occupied. Fire exits should provide special roads for fire engines to provide disaster relief. However, in some communities, it is very common that fire exits are blocked. Fire exits in some communities with restaurants or entertainment places have even become "free parking areas" for customers. At the same time, the random parking of private cars has become the most important factor blocking the fire escape.

Hidden danger 3:

Normally closed fire doors are in a normally open state. Fire doors usually refer to doors located in closed places such as stairs, elevators, cable shafts, smoke exhaust ducts, etc. The function of fire door is to meet the fire stability and heat insulation in a certain period of time, prevent the fire from spreading and ensure the evacuation of people. It is an essential equipment in fire control work. Fire doors are divided into normally closed fire doors and normally open fire doors. Only when the normally closed fire door is in the closed state can it effectively block the invasion of smoke and fire after the fire. Fire doors have the functions of fire prevention, smoke isolation and high temperature resistance in a certain period of time.

Hidden danger 4:

The stairwell became a grocery store. In some residential buildings, especially in old residential areas, it is common to pile up items in corridors. Most of the debris piled up is flammable and combustible items such as newspapers, cartons and old furniture. Some residents even make a fire at the stairs, and it is easy to catch fire when they encounter a fire source such as cigarette butts. The debris in the stairwell not only fuels the fire, but also is a big obstacle for residents to escape.

In addition, the fire exits originally used to connect several units in some communities were separated by the owners privately, forming their own closed "balcony".

Generally speaking, there are two situations, and it is a big problem to escape in case of fire. Another is that it is inconvenient to go upstairs and downstairs if there is a power outage and water supply, and another is that the occupancy rate of high-rise residential buildings is relatively low.

But the advantages are also outstanding, that is, the upper air is fresher, the sun is better, the lighting is better, it is more convenient to move things, and there is an elevator. It will be very troublesome if you want to go up and down the stairs of multiple floors.

I hope my answer can help you.