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Steel structure fire protection

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At present, steel structure buildings have been widely used. Among 101 super high-rise buildings in the world, 59 are pure steel structures. Meanwhile, steel structure is used in more than 60% of high-grade residential buildings abroad.Foreign experts believe that steel structure building can protect the environment, save energy, is the 21st century real estate products of a number of "dark horse."

After the September 11 attacks in the United States, foreign experts questioned its safety because of concerns about steel structures.Especially corrosion resistance, fire resistance and other properties, directly affect the safety of steel structure housing.Data show that ordinary steel without any protection will soften in 15-20 minutes once it is corroded or burned.Therefore, some experts do not advocate vigorously developing steel structure buildings.
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Fireproof coating for steel structure:

Steel structure fire retardant coating is applied to the surface of the steel structure of buildings and structures, can form a fireproof heat insulation protective layer, in order to improve the fireproof limit of steel structure coating, divided into thick, thin, ultra-thin and other types.Thick coating assumes granular shape, coating thickness is in commonly 8 millimeter above, construction method is spraying, the thickness that relies on coating itself and lesser conductivity of heat conduction when high temperature rise to use to the heat insulation of steel member.Thin and ultra-thin coating coating is thinner, has a certain decorative effect, construction methods can be sprayed or brushed, high temperature coating expansion thickening protection steel components.It is light in weight, easy in construction, suitable for concealed structure and exposed steel beam, inclined brace and other steel components.
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2.Pouring concrete masonry brick method

Steel structure fire retardant coating is applied to the surface of the steel structure of buildings and structures, can form a fireproof heat insulation protective layer, in order to improve the fireproof limit of steel structure coating, divided into thick, thin, ultra-thin and other types.Thick coating assumes granular shape, coating thickness is in commonly 8 millimeter above, construction method is spraying, the thickness that relies on coating itself and lesser conductivity of heat conduction when high temperature rise to use to the heat insulation of steel member.Thin and ultra-thin coating coating is thinner, has a certain decorative effect, construction methods can be sprayed or brushed, high temperature coating expansion thickening protection steel components.It is light in weight, easy in construction, suitable for concealed structure and exposed steel beam, inclined brace and other steel components.
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3. Water filling methodd

Filling water in hollow steel members is an effective method to resist fire, which can keep the steel structure at low temperature in case of fire.Water circulates within structural elements. Heated water can be cooled and recycled, or cold water can be introduced by water pipes to replace heated water.This method is widely used in steel column protection abroad.This method has the advantages of low cost, high requirements on leakage and corrosion prevention of hollow steel members, and is only suitable for the protection of hollow steel members.
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