Steel structure workshop mainly refers to that the main load-bearing components are composed of steel. Including steel column, steel beam, steel structure foundation, steel roof truss (of course, the span of the plant is relatively large, basically steel roof truss), steel roof, pay attention to the steel structure wall can also be maintained by brick wall. Steel structure workshop can be divided into light and heavy steel structure workshop. Compared with other materials, steel structure has the following characteristics:
1. High strength and light weight
Although the density of steel is larger than other building materials, its strength is very high. Under the same stress condition, the self weight of steel structure is small, and it can be made into a structure with larger span.
2. Good plasticity and toughness
The steel has good plasticity, and the structure will not break suddenly due to accidental overload or partial overload in general. The steel has good toughness, which makes the structure more adaptable to dynamic load.
The internal structure of steel is uniform and isotropic. The actual working performance of the steel structure is in good agreement with the theoretical calculation results, so the reliability of the structure is high.
Due to the weldability of steel, the connection of steel structure is greatly simplified, and it is suitable for manufacturing various complex structures.
5. High industrialization of steel structure fabrication and installation
The production of steel structure is mainly carried out in the specialized metal structure factory, so it is simple and accurate. The fabricated components are transported to the site for installation, with high degree of assembly, fast installation speed and short construction period.
The internal structure of the steel is very compact. When welding connection is adopted, or even rivet or bolt connection is adopted, it is easy to be tight without leakage.
7. Fire resistance
When the steel surface temperature is within 150 ℃, the steel strength changes little, so the steel structure is suitable for the hot workshop. When the temperature is more than 150 ℃, the strength decreases obviously. When the temperature reaches 500-600t, the strength is almost zero. Therefore, in case of fire, the fire resistance time of steel structure is short, and sudden collapse will occur. For steel structures with special requirements, heat insulation and fire resistance measures shall be taken.
8. Corrosion resistance
Steel is easy to rust in humid environment, especially in corrosive medium environment. It needs regular maintenance, which increases maintenance cost.
Advantages of Steel Structure
- The steel structure components are manufactured in the factory, which can reduce the field workload, shorten the construction period, meet the industrialization requirements, not only save resources, but also reduce some unnecessary pollution.
- The steel structure factory has reliable production quality, accurate size, convenient installation, and easy to cooperate with related parts.
- Light weight and high strength, the weight of the house built with steel structure is about 1 / 2 of that of the reinforced concrete house; it can meet the needs of the large room of the house, and the use area is about 4% higher than that of the reinforced concrete house.
- Steel can be recycled and less environmental pollution will occur during construction and demolition. These advantages are the value of steel structure houses. He uses these advantages to support the “safety umbrella” of life.
- Safety and reliability, good seismic and wind resistance performance, strong load capacity, seismic capacity can reach grade 8.
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