How to Deal with the Hidden Trouble of "High-rise Era"

The tall buildings in Liuzhou are constantly growing. The king of the city center, even as high as 303 meters, became the most in Guangxi. According to statistics from the fire department, there are five high-rise buildings in Liuzhou City, which are more than 100 meters high, and 18 are under construction; and more than 880 high-rise buildings are more than 24 meters high. The more skyscrapers there are, the more security risks will follow. On June 14th, the 13th floor of a tall building in the Classic Age caught fire, and fire rescue vehicles with 32-meter and 53-meter arm lengths were used. What should I do if I have a fire in a high-rise building with more than 20 floors? In addition to fire, what are the hidden dangers of high-rise buildings? Recently, the reporter walked into a tall building in Liuzhou and discussed the solution with you.

The person in charge of the Fire Prevention Department of the Liuzhou Fire Fighting Brigade introduced that the high-rise buildings are “long” too fast and the speed is far higher than that of the fire fighting equipment. At present, most of the fire fighting teams in Liuzhou are 32 meters high. The highest is only 53 meters. The ability to climb is equivalent to about 17 floors. If a taller high-rise building catches fire, the rescue equipment can only be “look at the building”. Therefore, high-rise buildings are on fire and it is very important for the public to have some knowledge of self-help.

Higher level

Fire "insurance" can not be less

The Liushajiao project in Liuzhou City is a mixed-use building with high-rise residential and commercial facilities. The number of floors is 25, 27 and 31 respectively. Under the leadership of the order manager of the Liuzhou Xinchenghai Property Co., Ltd. under the supervision of the project, Ma Kangwu, the reporter walked into five buildings with 31 stories high.

At the lobby elevator entrance on the first floor, there is a fire display panel. The display panel is connected to the smoke detectors on each floor of the building. As long as the smoke detector senses smoke, the display panel will show the specific location of the fire. At the same time, the corresponding lights of the monitoring equipment in the fire control room will light up.

Sprinklers and laser alarm bells are installed on the ceiling of each floor of the corridor. When the temperature is 60-80°C, the shower device will start automatically. The laser alarm bell, as long as the temperature is high or feel the water splash, the alarm bell will alarm and emit red light.

If it is confirmed that a fire has occurred, the staff member only needs to press the fire confirmation button in the fire control room, all the alarms in the building will be sounded, the fire broadcasting in the corridor will also ring at the same time, and the large fan on the roof will start to run. Dilute the smoke concentration in the corridor.

In order to extinguish the fire at the first time, fire extinguishers, fire hydrants and hoses are provided on each floor. In order to ensure high water pressure, the fire hydrant is also equipped with a pressure pump.

Ma Kangwu introduced that in order not to miss every safe corner, they will install a circular electronic patrol point on each floor of the building, in the underground parking lot, and randomly select a certain floor. When a security guard patrols on a daily basis, he needs to hold a flashlight-like device and send a flash of “flashlight” to the patrol point. The patrol data will then be stored in a “flashlight”. Every week, they will export patrol data as a reference for assessing security work.

The reporter visited the South District 1 and District 6 of Victory Community in Liubei District and discovered that some members of the public have placed miscellaneous items in fire-fighting corridors such as stairwells. Some residents even used electric cars to go upstairs through elevators and put them in aisles. "If it is on fire, it is difficult to escape," said Ms. Liu with worry.

The person in charge of the residential property stated that the community had formed a systematic plan. Once a fire broke out, the fire alarm in the community would start immediately. As for the hidden dangers caused by the dumping of sundries by residents, they also dissuaded them and cleared them several times. The property hopes everyone can consciously handle and create a safer environment.

Super high-rise

Special refuge floor

According to the design code for fire protection in high-rise buildings in China, evacuation floors should be set up for buildings over 100 meters in height. It is mainly used for the evacuation and temporary stay of fire evacuees to compensate for the lack of fire-fighting capability of super high-rise fire fighting equipment. The refuge floor was not renovated, mainly with cement walls. The floors themselves were less flammable, and it was hard to transmit around the fire. The huge ventilation system was able to maintain indoor and outdoor air circulation. These all played a certain role in suppressing the fire from the fire. People rushed out of the district can temporarily escape.

Taking Liuzhou customs harbor as an example, two 47-storey residential buildings have a building height of 165 meters, of which 14 floors and 32 floors are set as refuge floors. The Diwang International Wealth Center with a height of more than 300 meters can clearly see the vacant refuge floor setting.

Relevant person in charge of the fire department said that the evacuation deck should be equipped with fire elevator exits, automatic fire extinguishers, indoor fire hydrants, automatic sprinkler systems and induction systems to ensure that people in the building can safely escape and save themselves when a fire occurs.

remind

You can bring your own escape tool

Ms. Huang said that she lived on the 27th floor of a 31-storey high-rise and she was worried that the fire was downstairs and the escape passage was blocked.

Liu Weizhou fire brigade engineer Fire Department said Mr. Wei, a high-rise community fire, self-help is the most important. You must be familiar with corridors to facilitate timely escape. In addition, the family should also prepare fireproof "three treasures": towels, flashlights, and descending devices, and the descent is a "shortcut" to escape.

The descending device is composed of hooks (or rings), slings, ropes, and speed control. It is a safe rescue device that allows a person to slowly descend along a rope (belt). When a fire occurs and the fire seals the door, it can be installed in a building window, a balcony or a flat roof of a building, etc., and lands smoothly on the ground, which is equivalent to opening an escape passage for itself.

Towels, flashlights, cheap, is a family standing goods, ordinary families have. Escape descender, where to buy, how is the price?

The reporter found on the online shopping platform that the price of the descending device was the cheapest tens of yuan, and more than 1,000 yuan more expensive. Wei said that this can also be purchased in Liuzhou's fire equipment store. Residents can choose to purchase according to their own needs and economic conditions.

If the public thinks the price is too high, they can also purchase a fire safety rope . Due to the trouble of rope knotting, it is recommended to buy a buckle and use it conveniently.

Earthquake prevention

Do not disassemble the wall

Although Liuzhou is not a major earthquake zone, the probability of a major earthquake is low. However, in the past two years, several small earthquakes occurred in Changtang Town, Liubei District, and many high-rise residential residents were worried about earthquakes.

For the residents' concerns, the reporter visited a number of high-rise residential properties. The properties all stated that the high-rise residential buildings were all designed for earthquake protection and had a certain level of seismic performance. However, for the earthquake-prevention emergency plans, there were relatively few, and mainly self-rescue.

According to Mr. Li, a building expert, there is a certain relationship between the high-rise earthquake protection and the owner's decoration. When decorating, people often neglect some earthquake protection issues, such as breaking down the load-bearing wall. Under normal circumstances, if residents on the first floor dismantle large-scale bearing walls, the seismic performance of the building will be weakened and the load stress will be abnormal. When a larger earthquake occurs, the overall collapse of the building is more likely. In addition, the load-bearing walls are free to make holes, which is also detrimental to the earthquake resistance of the houses.

Every time Liubei earthquake struck, Mr. Zhang, who lived on the 25th floor of the Shengli Sixth District, was shaken. Although it is such a "shake" and "shock", but if an earthquake with a relatively high level occurs, then what should the public do if they are tall buildings?

Fire said that if it is really encountered, the underlying building is relatively high in seismic performance. Residents feel that there is shaking, do not take the elevator, it is best to immediately run downstairs to an empty area.

Miscellaneous items such as high-rise glass and billboards may be shaken off, posing a danger to escape. Citizens can prepare a safety helmet at home. They can also use bags, pillows, etc. to protect their heads and prevent them from being injured when they escape.

Falling objects

Beware of "air bombs"

Falling objects in high buildings also pose a danger. How to prevent high-level falling objects has also become a standard to test the safety of high-rise buildings.

In the early morning of March 31 this year, after a hurricane, Hongqiao Xinqiao Community, Hongqiao, more than 10 households, a total of dozens of glass windows together with the window frame was blown away by the wind. In addition, air-conditioning hang-ups are also a major security risk for high-rise buildings. Many residents like to hang the air-conditioning hooks through the brackets outside the windows, and the air-conditioning brackets are made of metal. The air is often weathered by the wind and is easily rust-aged. Once the wind is stronger, It may be blown down.

The reporter saw that high-rise buildings in Jinshajiao are all equipped with air conditioners. Households can put air conditioners on dedicated air conditioners to ensure safety and aesthetics. In addition, the property has also established detailed installation standards for the residents' balconies, bay windows, etc.

In spite of this, some residents still installed the air conditioning hook outside the air-conditioning position without any protective device around. For unsuitable installations, Ma Kangwu said that they had issued a rectification notice to the occupants and allowed them to rectify their deadlines.

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