The characteristics of steel are high strength, light self weight, good overall rigidity and strong deformation ability, so it is particularly suitable for building large-span and super high, super heavy buildings; good homogeneity and isotropy of data, ideal elastomer, consistent with the basic assumptions of general engineering mechanics; good plasticity and resistance of data, large deformation, good ability to bear dynamic load; short construction period;It has a high degree of industrialization and can be produced professionally with a high degree of mechanization. 

High strength steel should be studied in steel structure to greatly improve its yield point strength; in addition, new types of section steel, such as H section steel (also known as wide flange section steel), T section steel and profiled steel plate, should be rolled to meet the needs of large-span structure and super high-rise building.

In addition, there is also a light steel structure system without heat bridge, which is not energy-saving in construction. This technology solves the problem of cold and hot bridge construction with wonderful special connectors; the small truss structure makes the cable and water pipe pass through the wall, and the construction and decoration are convenient.

1High data strength and light weight

The steel has high strength and elastic modulus.Compared with concrete and wood, the ratio of density to yield strength is relatively low. Therefore, under the same stress conditions, the steel structure members have small section, light self weight, easy to transport and install, suitable for the structure with large span, high height and heavy load.

2, steel has good durability, plasticity, uniform raw materials and high structural reliability

It is suitable for bearing impact and dynamic load and has good anti-seismic function.The internal structure of the steel is uniform, nearly isotropic.The actual working function of steel structure is in accordance with the calculation theory.So the reliability of steel structure is high.

3High mechanization of steel structure fabrication and installation

Guiyang steel structure components are easy to be made in the factory and assembled on site.The factory mechanized production of steel structure components has high precision, high production efficiency, fast site assembly speed and short construction period.Steel structure is a kind of structure with high degree of industrialization. 

4, good sealing function of steel structure

Because the welding structure can be completely sealed, and can be made into air tight, water tight high-pressure vessels, large oil pools, pressure pipes, etc.

5, steel structure is heat-resistant and not fire-resistant

When the temperature is below 150 ℃, the change of steel properties is very small.Therefore, the steel structure is suitable for the hot workshop, but when the external surface of the structure is exposed to the heat radiation of about 150 ℃, the heat insulation board shall be selected for maintenance.When the temperature is 300 ℃ – 400 ℃, the strength and modulus of elasticity of steel decrease, and when the temperature is about 600 ℃, the strength of steel tends to zero.In the construction with special fire protection requirements, it is necessary to select fire-resistant materials to maintain the steel structure in order to improve the fire resistance rating. 

6, poor corrosion resistance of steel structure

Especially in the environment of humid and corrosive medium, it is easy to rust.Generally, the steel structure shall be rusted, galvanized or coated, and shall be maintained regularly.For the offshore platform structure in sea water, special methods such as “zinc block anode maintenance” should be selected to prevent corrosion.

7, low carbon, energy-saving, green and reusable

There is no construction waste in the construction and demolition of steel structure, and the steel can be recovered and reused.