1.Outsourcing layer. That is the layer is added to the surface of steel structure, can be cast molding, spraying method can also be used. Outsourcing situ forming solid concrete floor usually usd steel wire or steel bar to reinforced ,to enhance the limit of shrinkage cracks, and to ensure the strength of shell. Spray at the construction site can be applied on the steel surface to form a protective layer of sand pump, sand pump can be a lime cement mortar or gypsum ,can also be mixed with perlite or asbestos. Outsourcing can also use the same layer of perlite, asbestos, gypsum or asbestos cement, prefabricated panels made of lightweight concrete, with adhesives, nails, bolts fixed on the steel structure.

2.Filled with water (water jacket).Filling water into hollow steel structure against fire is the most effective protective measures, this approach can make steel structure to keep a lower temperature in the fire, the water cycle within the steel structure and absorb heat of the material itself. After cooling, water can be recycled, or by the introduction of cold water to replace the heated water via pipes.

3.Shielding.Steel structure is set in the wall or roofing that made of fire resistance materal, or concealed the components in the gap between two walls, as long as increase or not increase the refractory material to achieve the purpose of fire prevention. This is one of the most economical fire protection methods.