The characteristics of steel structure are: the heat resistance of steel structure is good, but the fire resistance is poor; the test shows that when the performance of steel changes from normal temperature to 150 ℃, the strength and plasticity of steel change greatly at 600 ℃, and the strength drops to zero , Completely lose the bearing capacity, and the fire resistance level of the steel structure is improved. When the fireproof coating thickness of the fireproof coating is 15mm, the fire resistance limit of the steel member can reach 1.5h.
1. Single-story: There is only one-story building on the ground, which is a single-story building, including industrial plants (single-story height above 6-8m), civil buildings (2-3m) and agricultural factory buildings (above 2.2m) and other buildings.
2. Multi-storey: Refers to 4-6 storey buildings.
3. High-rise: Refers to buildings with more than 10 floors and a total height of less than 100 meters.
4. Super high-rise: Refers to buildings with more than 40 floors and more than 100 meters.
5. High-rise buildings and super high-rise buildings mainly adopt steel-concrete structures, such as: cross columns, box columns and other structural forms.
The above is the introduction of SAFS steel structure to different places of multi-layer and single-layer. Steel structure is widely used today and is also loved by more builders.
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