Steel structure is made of steel. As one of the most important construction structures, it was made from silicification, clean manganese phosphate, cleaning, drying, and gallvation.It uses rust removal and rust prevention processes such as silanization, pure manganese phosphating, washing and drying, and galvanizing. Welds, bolts or rivets are usually used to connect components or parts. Because of its light weight and simple construction, it is widely used in large workshops, venues, super high-rises and other fields.

Steel is characterized by high strength, weight, high overall rigidity, and strong deformation. So it is especially suitable for building large, very high, very heavy buildings. This material has good uniformity and isotropic property and is an ideal elastic material that best fits the basic assumptions of general technical mechanics, this material has good plasticity and toughness, can produce large deformation, and can undergo dynamic loading; Construction time is short, it has a degree of advanced industrialization and can be professionally engaged in high mechanical production.

 

Features:

1. Material strength and light weight
Steel has high strength and elasticity and relatively low density / yield strength compared with concrete and wood. Therefore, under the same load condition, the steel structure is small in size, light weight, easy to transport and installation, and is suitable for large, high and medium size building.
2. Steel has excellent toughness, plasticity, homogeneous materials and high structural reliability
It is resistant to impact and dynamic load, and has excellent seismic performance. The internal structure of steel is uniform and almost isotropic. Since the actual working performance of steel structures is consistent with the calculation theory, the reliability of steel structures is very high.

3.High degree of mechanization in steel construction production and installation
Steel structures are easy to manufacture in the factory and assemble on site. Factory mechanized production of steel structures has high precision, high production efficiency, fast on-site assembly speed and short construction period. Steel structures are the most industrialised structures.
4.Steel structure has good sealing performance
The welded structure can be completely sealed, which makes it possible to seal high pressure containers, large oil tanks, pressure lines, etc. to be manufactured with good airtightness and waterproofness.

5. Steel structure is heat-resistant and not fire-resistant
When the temperature is below 150 ° C, there will be some changes in the steel mesh Theoretical, steel structures are suitable for high temperatures, but if the surface of the structure is exposed to thermal radiation of about 150 ° C, insulation panels should be used for protection When the temperature is between 300 ° C and 400 ° C, the strength and elastic effect of steel are significantly reduced, with a strength of the steel tends to zero at a temperature of about 600 ° C. In buildings with special fire protection treatment, steel structures must be protected with reference materials to improve the fire resistance rating.
6. Poor corrosion of steel structures
Especially in humid and corrosive environments, it is easy to rust. In general, steel structures need to be removed, galvanized or painted, and regularly maintained. When building offshore platforms in seawater, special measures such as"protection of zinc block anodes"should be taken to prevent corrosion.
7.Low carbon, energy saving, environmentally friendly and reusable
The demolition of steel frame buildings will hardly produce Construction waste, and the steel frame can be recycled.

 

Application:

Compared to common reinforced concrete structures, steel structures have benefits such as strong uniformity, rapid construction speed, good seismic performance and rapid freedom. The strength and elasticity of the steel is usually strength and elastication of brick and concrete. Under the same conditions, the weight of steel structures is lighter. The steel structure clearly has early signs of deformation, which belongs to the ductile failure structure, which can be detected and avoided.

The steel structure has the characteristics of general light, saving foundation, few materials, low cost, short construction time, long service life, safety and reliability, beautiful appearance and stable structure. Steel structure work is widely used in large industrial plants, warehouses, cold stores, high-rise buildings, office buildings, multi-storey parking, residential buildings and other construction industries.

 

Steel structure installation:
Prefabrication of steel elements:

The prefabrication and installation of steel components are carried out on an iron platform according to the installation sequence and process requirements, and welding quality must be ensured.
The distance between the complete partition and the irregular railway partition should be greater than 200mm, the length of the entire partition should not be less than twice the width of the partition, the width of the web separation should not be less than 300mm, and the length should not be less than 600mm.

To improve the welding and ensure the quality of the solution, try to do the back solution on the iron platform on the Earth's iron platform according to the size of the structure drawings, if possible, the proximity plates, support plates and beams on columns and beams.
In addition to the production and installation of prefabricated iron elements on the iron platform according to the design drawings and specifications, the possibility of production there and changing the installation dimension should also be considered.