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Application code of Xinjiang steel structure fireproof coating

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Application code of Xinjiang steel structure fireproof coating

来源: http://haoyi007.com点击: Date: 2019-06-04 00 : 00Source : http : //haoyi007.comClick :

Application code of Xinjiang steel structure fireproof coating

I. Fire-resistant coatings for steel structure: Steel is a non-combustible building material, which has characteristics of earthquake resistance and bending resistance. In practical applications, steel can not only increase the load capacity of the building, but also meet the needs of aesthetic modeling in architectural design; it also avoids the defects of concrete and other building materials that cannot be bent and stretched. Therefore, steel is favored by the construction industry. Single-story, multi-story, skyscrapers, factory buildings, warehouses, waiting rooms, waiting rooms, etc. are all widely used. However, steel as a building material has some unavoidable defects in terms of fire prevention. Its mechanical properties, such as yield point, tensile and elastic modulus, will decrease sharply due to temperature rise.

2. The steel structure usually loses its bearing capacity at 450-650 ° C, causing great deformation, which causes the bending of steel columns and beams. As a result, the steel structure cannot be used due to excessive deformation. Generally, the steel structure is not protected. The fire resistance limit is about 15 minutes. The length of this time is also related to the speed of heat absorption by the component.

  1. Classification of fire-resistant coatings for steel structures:

  2. 1. Ultra-thin structure fireproof coating.

    2. Thin steel structure fireproof coating.

    3. Fireproof and thermal insulation coatings for mineral wool construction.

  3. 新疆钢结构防火涂料

Related tags: Construction of fireproof coatings for steel structures , principles of fireproof coatings, precautions for fireproof coatings

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