The hottest exposure ignores the law and fails to

2022-10-15
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[exposure] ignoring the law and building with substandard thermal insulation materials editor's note: Recently, fire accidents caused by building external thermal insulation materials have occurred frequently in China, especially the fire of teachers' apartment on Jiaozhou Road in Shanghai and the fire of Wanxin building, the "tallest building" in Shenyang, resulting in major casualties and property losses, making building external thermal insulation materials a new focus of fire hazards that people pay attention to. It is urgent to learn from the heavy and catastrophic fire and further improve the fire prevention of building external insulation materials

plan of Xiajin JinFang home project

in recent years, China has experienced frequent crises caused by external insulation materials, from the "two fires in Jinan Olympic Sports Center Gymnasium" in 2008 to the fire at the new site of Beijing CCTV, the fire at Nanjing Central International Plaza, and the "11.15" special major fire accidents in Shanghai A series of major fire accidents such as the fire of "the tallest building in Shenyang" have become an important case for the fire force to study the building external insulation materials by transforming the problem of measuring the load into the problem of measuring the displacement of the rod assembly

on July 27th, 2008, a fire broke out in Jinan Olympic Sports Center Gymnasium due to the illegal electric welding of insulation materials by construction personnel, burning an area of about 3000 square meters, causing a direct economic loss of about 750000 yuan. Less than 100 days before the fire, on November 11, a fire broke out again on the southeast side of the roof of Jinan Olympic Sports Center Gymnasium, covering an area of 1284 square meters, with an economic loss of about 30000 yuan. After investigation, the fire was caused by the construction workers' illegal use of gasoline blowtorch hot-melt waterproof membrane, which ignited the waterproof layer

at 16:00 on October 9, 2008, a fire broke out in the "360 ° longitude and latitude" Twin Star Building in Harbin, which was under construction at that time. The fire department found out that the fire was caused by the workers' illegal electric welding operation, which ignited the polyurethane hard foam insulation layer decoration material on the ceiling. On September 9, 2010, a fire broke out in Jiatai Dijing City, the highest residential building in Changchun, due to electric welding igniting the external wall insulation materials; On September 15, a government residential building under construction in Urumqi ignited a fire due to external insulation materials; On September 22, the insulation layer of the outer wall of a high-rise residential building under construction in Urumqi caught fire again

On the afternoon of November 15, 2010, a fire broke out in a 28 story residential building at No. 1, Lane 707, Jiaozhou Road, Jing'an District, Shanghai. DNA testing of the remains of the victims showed that 58 people were killed in this particularly serious fire accident, including 22 men and 36 women. It is understood that an important reason for the "11.15" particularly serious fire accident in Shanghai is the illegal use of a large number of flammable materials such as polyurethane foam on site. Zhuliping, deputy director of the Fire Department of the Ministry of public security, pointed out that the large number of polyurethane foam insulation materials on the building's exterior facade, but the highly toxic hydrogen cyanide gas generated by the fast burning speed (article source: universal polyurethane), which hopes to take e-commerce transactions as the core material, is the main cause of many deaths

less than two months from the high-rise fire in Shanghai, the "tallest building" in Shenyang had a fire again, and it still occurred on New Year's Eve. The fire burned from the third floor to more than 20 floors. Although the firefighters sprayed water upward with two water guns, the water gun spray height could only reach 50 meters at most, and there was nothing they could do about the flames high above. I can only watch helplessly as the "tallest building in Shenyang" is burned down by the fire, with a loss of about 3billion yuan. It is a major fire with very heavy losses

this year's CCTV "3.15" evening party exposed the illegal abuse of extruded boards as building external insulation materials, which triggered an industry "earthquake" in the field of building external insulation materials, and put the quality and safety of external insulation materials, including polystyrene boards, extruded boards, polyurethane and other chemical insulation materials, to a big test

since the regulations and standards for fire protection of external thermal insulation materials used in buildings in China have not been clearly defined, and there are regulatory loopholes in the pursuit of profit maximization and management of construction units, at present, the selection of external thermal insulation materials in many construction projects does not comply with the fire protection design requirements, the fire resistance rating and fire resistance limit cannot meet the national standards, and B3 (flammable) thermal insulation materials without flame retardants are mostly used

after the CCTV building fire, although the Ministry of public security and the Ministry of housing and urban rural development jointly issued the Interim Provisions on fire prevention of external thermal insulation system and external wall decoration of civil buildings on September 25, 2009, the combustion performance of thermal insulation materials for external walls of civil buildings should be class a (non combustible) and should not be lower than class B2 (combustible) national regulations are in vain, and many fire-proof materials that do not meet the standard can buy relevant testing certificates as long as they spend money, Malignant fire accidents involving external insulation materials can be found everywhere. The fact that the fire prevention performance of construction projects is poor has been caused by a large fire, and the strict management of the production and use of external wall insulation materials has also been caused

in view of the successive fire hazards, the Ministry of public security urgently issued document No. 65, saying that the Ministry of public security and the Ministry of housing and urban rural development are formulating new standards on fire protection standards for building exterior wall insulation materials. Before the introduction of the new standard, non combustible class a insulation materials were used for the external wall insulation materials of civil buildings. At present, the thermal insulation materials for building exterior walls in China are basically lower than Grade A

the major fire accidents in the above different areas have shown us the importance of external insulation materials. Combustible thermal insulation materials in external thermal insulation materials become the culprit of fire accidents, and also deeply affect the severity of fire accidents

however, on August 10, 2011, on the south side of Cuigong street, Xiajin County, Shandong Province, we saw the jinfangjiayuan 2# residential building under development and construction. On the upper floor of the residential building under construction, we can see the external wall insulation materials that have been pasted, exposed and stacked at random. This randomly stacked external wall insulation material has no preventive measures in this dry weather, which has great potential fire hazards

thermal insulation materials (polystyrene board) pasted on the outer wall and stacked outside

it is understood that the building is a six story frame brick concrete residential building built by Jinxu branch of Xiajin star real estate development company. The project is located in the south of Cui highway in Xiajin County, covering a total area of 6700 square meters

the falling polystyrene board, the external wall insulation material, inquired director Zhang of the wall reform office of Xiajin County Construction Bureau. He learned that this kind of polystyrene board belongs to the switch switching to the loading file of B2 (combustible) external insulation material, and the Ministry of public security urgently issued document No. 65, saying that the Ministry of public security and the Ministry of housing and urban rural development are formulating new standards on the fire prevention standards of building external wall insulation materials. Before the introduction of the new standard, class a thermal insulation materials were used for the external wall thermal insulation materials of civil buildings. The document also requires that local public security fire departments should strengthen the fire supervision and management of external thermal insulation materials of civil buildings. For projects under construction that have been approved and approved, if inflammable and combustible materials are used for external insulation of buildings, it shall be submitted to the government to organize relevant competent departments to urge the construction unit to remove inflammable and combustible insulation materials; For construction projects that have been approved but have not yet started, if inflammable and combustible materials are used for building external insulation, the construction unit shall be urged to change the design, select non combustible materials, and re submit for approval

nowadays, the global thermal insulation materials are developing towards the integration of high efficiency, energy saving, thin layer, heat insulation, waterproof and external protection. The wide use of building external insulation materials makes the problem of building fire prevention not only consider the internal fire prevention of the building, but also consider the external fire prevention of the building. A series of heavy lessons of fire have aroused national reflection. Only by carefully learning lessons and taking practical and effective measures, can the fire safety of cities in China be guaranteed

a large number of buildings are wrapped with this kind of combustible thermal insulation material, which will inevitably leave a fire hazard to the building

there are many rebuilt and newly built communities in Xiajin County. So, are so many residential areas under construction also using insulation materials with fire hazards? How did the notice of relevant requirements for fire supervision and management issued by relevant national departments be implemented in Xiajin County? What are the responsibilities that local governments should perform in the process of community engineering construction? Has the competent department of the local government supervised the use of external wall insulation materials? How can people's personal safety and property safety be guaranteed without any defect

note: the reprinted content is indicated with the source. The reprint is for the purpose of transmitting more information, and does not mean to agree with its views or confirm the authenticity of its content

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