Steel structure is a structure made of steel materials and is one of the most important structures. The structure is mainly composed of steel beams, steel columns, steel gratings and other parts made of cutting steel and steel plates, and adopts rust removal and anti-rust processes such as silanizing, pure manganese phosphate, washing and drying and galvanizing. Bolts or rivets are usually used to connect components or parts. Due to its light and simple structure, it is widely used in large workshops, premises, super buildings and other areas.
This steel has the characteristics of high strength, light weight, good overall strength, and strong resistance to deformation. Therefore, large It is particularly suitable for building very tall and heavy buildings. This material is an ideal elastic material, with good uniformity and isotropy, and most in line with the basic assumptions of general Applied mechanics. The material has excellent plasticity and strength, can have large deformation, and can well withstand dynamic loads; Short working hours, high degree of industrialization, specialized production, and high degree of mechanization.

Features:
1. This material has high strength and light weight.
Steel has high strength and high elastic modulus. Compared with concrete and wood, steel structures have lower density and yield strength ratios. Therefore, under the same stress conditions, steel structures have the characteristics of small cross-section, light weight, easy transportation and installation, and are suitable for structures with span, high height, and large load.
2. This steel has good toughness, plasticity, uniform material, and high structural reliability
This material has good seismic performance, making it suitable for withstanding impact and dynamic loads. The internal structure of steel is uniform and nearly isotropic with homogeneous plasticity. The actual performance of the steel structure is more consistent with the Theory of computation. Therefore, the reliability of steel structures is relatively high.
3. High degree of mechanization in steel structure manufacturing and installation
Steel structural components are simpily manufactured in the factory and assembled on site. The steel structure component factory has the advantages of high precision, high production efficiency, fast assembly speed, and short construction period. Steel structure is the most industrialized structure.
4. Excellent sealing performance of steel structure
The welded structure can be completely sealed, so it can be made into high pressure vessels with good air tightness and water tightness, large oil pools, pressure pipelines, etc.
5. Steel structure has heat resistant, not fire resistant
When the temperature is below 150℃, the properties of steel change little. Therefore, steel structure is suitable for high temperature workshops, but when the surface of the structure is exposed to thermal radiation of about 150℃, heat insulation plate should be used for protection. When the temperature is between 300℃ and 400℃, the strength and elastic modulus of steel decrease obviously. When the temperature is about 600℃, the strength of steel tends to zero. In buildings with special fire protection requirements, the steel structure must be protected by refractory materials in order to improve the fire resistance grade.
6. Awful corrosion resistance of steel structure
Especially in the environment of wet and corrosive substances, it is easy to rust. General steel structures must be rust-free, galvanized or painted and require regular maintenance. Specific measures should be taken to prevent corrosion of offshore substructures in seawater, such as anode protection of the zinc block.
7. Low carbon, energy saving, green environmental protection, reusable
There is little Construction waste generated when the steel structure is demolished, and the steel can be recycled.

Application program:
Compared to common enhanced structures, steel structures have characteristics of good uniformity, high strength, rapid construction speed, good seismic resistance and rapid health. Steel's strength and elastic modules are multiple times with bricks and concrete. Under the same conditions, the weight of the steel components is relatively easy. From the perspective of damage, steel structures have important early changes and are skimmed wrong structures that can be detected to avoid danger.
Steel construction workshops have the advantages of light weight, basic economy, fewer materials, low cost, short service life, large span, safety and reliability, beautiful appearance, stable structure, etc. Steel construction workshops are widely used in large industrial workshops, warehouses, cold stores, high-rise buildings, office buildings, multi-storey parking lot, Housing and other construction industries.

Steel structure installation:
Precast of steel components:
On steel platforms, the prefabrication and assembly of steel components must be carried out in accordance with the assembly sequence and process requirements to ensure welding quality.
The distance between the joint flange joint and the guide rail joint should be greater than 200mm. The joint length of the wing plate should not be less than twice the width of the wing plate; The joint width and length of the web plate shall not be less than 300mm. 600mm.
In order to facilitate welding and ensure welding quality, the welding of columns should be carried out on the ground steel substrate as much as possible, and on the reinforcement, connecting plates, washers, and beams (beams) according to the dimensions specified in the construction drawings.
In addition to manufacturing and assembling steel components, special attention should also be paid to the manufacturability of on-site installation, as well as modifying the dimensions of steel substrate installation according to building drawings and specifications.