What aspect does the fire prevention measure of steel structure occupy?

With the development of society, steel structure workshop construction projects can be seen everywhere, especially high-rise steel structure buildings, once a fire, it is impossible to extinguish in a short time. In order to minimize loss and loss of life, a clear understanding of fire prevention measures is essential.

1, steel structure outer layer

The protective measure is to add a coating to the surface of the steel structure, which can be cast-in-place or sprayed. Cast-in-place solid concrete cladding is usually reinforced with wire mesh or steel bars to limit shrinkage cracks and ensure the strength of the shell. The spraying process creates a protective layer on the surface of the steel structure at the construction site by applying sand pumps, which can be lime cement or gypsum mortar, or mixed with perlite or asbestos. At the same time outsourcing layer also can use perlite, asbestos, gesso or asbestos cement, light concrete make it prefabricated board, use adhesive, nail, bolt to fix on steel structure.

2, steel structure building water filling (water jacket)

Filling the hollow steel structure with water is the most effective protection against fire. This method can keep the steel structure at a lower temperature in the fire, water circulates in the steel structure and absorbs the heat of the material itself. Heated water can be recirculated after cooling or piped in to replace heated water.

3, steel structure shielding fire

The steel structure is arranged in the wall or ceiling composed of refractory materials, or the components are hidden in the gap between the two walls. As long as a little refractory material is added or not added, the purpose of fire prevention can be achieved. This is the most economical method of fire prevention.

4, steel structure expansion material fire prevention

The use of steel structure fire retardant coating to protect components, this method has the advantages of good fire insulation performance, construction is not limited by the geometric shape of steel structure, generally do not need to add auxiliary facilities, and the quality of the coating is light, there is a certain decorative effect, belongs to the modern advanced fire technical measures.