A hospital in Hubei has been seized!, Use this material to build a roof foam | fire | a roof
"After a fire, polystyrene, polyurethane foam and other flammable materials will not only burn fast, but also produce a large number of toxic and harmful gases, thus endangering the life safety of surrounding people. There is a great potential fire hazard!"
A few days ago, the fire rescue team in Baokang County, Xiangyang City, Hubei Province found that the top floor of a township hospital under its jurisdiction was built with foam sandwich color steel plates, covering an area of more than 900 square meters, which had serious fire safety hazards and violated the Fire Control Law of the People's Republic of China, Fire Supervision and Inspection Regulations and other relevant laws and regulations.
In response, fire supervision personnel have temporarily sealed off illegal buildings in accordance with the law and ordered them to make corrections within a specified period of time.
During the period, the brigade has sent people to the site for help and guidance for many times, informing the site leader of the hazards of combustible sandwich color steel plate buildings and the corresponding legal responsibilities, and putting forward suggestions based on the actual situation of the site. The foam color steel plate can be replaced with brick, and the plate core can be Class A incombustible materials or single-layer iron sheet. Recently, under the guidance of fire supervisors, the hospital hired workers to remove and replace all the foam color steel plate houses built against regulations.
At present, the brigade has instructed relevant units with hidden dangers in the area to demolish about 5500 square meters of polystyrene foam sandwich color steel plate buildings.
Science popularization time
According to the requirements of the Code for Fire Protection Design of Buildings:
When it is necessary to use metal sandwich panels for non bearing exterior walls, room partitions and roof panels in civil buildings, workshops, warehouses and other buildings, the core materials shall be incombustible materials, and the fire resistance limit shall comply with relevant regulations. foam sandwich color steel plates filled with combustible materials such as polystyrene and polyurethane foam are not allowed.
According to Article 26 of the Fire Protection Law
The fire resistance performance of building components, building materials, indoor decoration and decorative materials must comply with national standards; Without national standards, it must comply with industry standards. Indoor decoration and decoration in densely populated areas should use non combustible and flame retardant materials in accordance with the requirements of fire safety technical standards.
Foam sandwich color steel plate building
Once a fire occurs
The fire spread rapidly
And generate a large amount of smoke and toxic gases
Serious impact on personnel evacuation and firefighting
The consequences are unimaginable
01
The accumulation of high temperature and thick smoke makes it difficult to extinguish fires.
The color steel plate structure of buildings is relatively enclosed. When the color steel plate sandwich material is burned, it will produce a large amount of high temperature and thick smoke, causing the building to be filled with thick smoke and accumulate a large amount of heat in a short period of time.
02
Poor fire resistance and prone to large-scale collapse.
When the color steel plate encounters flames, its strength will rapidly decrease, and the color steel components are highly susceptible to distortion and deformation under high temperature, leading to large-scale collapse of the building.
03
Generating toxic gases can easily cause casualties.
When a fire occurs, the material filled in the color steel plate will produce a large amount of toxic and harmful gases due to incomplete combustion, gradually increasing the threat to people.
Accident cases
On January 8, 2022, a fire broke out at Hengyang Laiyan Hospital in Shigu District, Hengyang City, Hunan Province, resulting in 6 deaths and 8 injuries. The fire covered an area of approximately 300 square meters and resulted in a direct economic loss of approximately 7.795 million yuan. The cause of the accident was that the third floor of the building in fire was an illegal building, and the ceiling was built with foam sandwich color steel plates in violation of regulations. After the fire, a large amount of toxic smoke is generated, and the entire suspended ceiling space is connected, exacerbating the spread of the fire and causing violent combustion, resulting in collapse of the suspended ceiling.
On June 25, 2021, a fire broke out at the Zhenxing Martial Arts Museum in Shangqiu City, Henan Province, resulting in 18 deaths and 11 injuries, with a direct economic loss of 21.537 million yuan. The cause of the fire was due to the use of mosquito coils in the lower room of the attic on the north side of the first floor of the storefront of the Zhenxing Martial Arts School, which accidentally ignited combustible materials. The use of polystyrene sandwich color steel plates as partitions in the room where the fire broke out on the first floor exacerbated the harm of the fire. After the fire broke out, a large amount of high-temperature toxic smoke poured into the second floor dormitory area, causing the fire to spread rapidly and resulting in fatalities.
On November 6, 2020, a company in Lu Township, Shuangyang District, Changchun City, Jilin Province, caught fire, resulting in 5 deaths and 1 injury. The fire covered an area of 1440 square meters and caused a direct economic loss of approximately 8.2 million yuan. The cause of the accident was that the electric welding operation ignited the polyurethane foam flammable insulation material on the wall, and volatilized a large amount of combustible gas, which quickly caused flashover and spread to disaster.
Safety Tips
There are many fire hazards in colored steel plate buildings
The combustion of colored steel plates produces a large amount of thick smoke and toxic gases
Posing a huge threat to life and property safety
Replace foam color steel plank house
Both responsible to society
Also responsible for oneself
