Steel structure is a steel structure made of steel and one of the most important building structures. It mainly consists of structural parts such as profile steel and steel plate steel beams, steel columns and steel beams. It uses rust and rust prevention techniques such as silication, pure manganese phosphate, cleaning and drying, and electroplating. Welding rods, bolts or rivets are commonly used to connect components or parts, and due to their light and simple structure, they are widely used in large workshops, activity sites, superskyscrapers and other fields.

Steel has the characteristics of high strength, light weight, good overall strength, and resistance to deformation. Especially suitable for construction of large, ultra high, and ultra heavy buildings. The materials have good uniformity and anisotropy. It is the most ideal elastic material, which conforms to the basic assumptions of general Applied mechanics and has good plasticity and toughness Large appearance, able to withstand dynamic loads well, highly industrialized, professional production, and highly mechanized.

1. Material with high-level strength and light weight
Compared to concrete and wood, steel has higher strength and elasticity, and its yield strength density is comparatively low. Therefore, under the same stress conditions, the steel structure has a small cross-section, light weight, and is easy to transport and install. Suitable for large, high, and heavy structures.
2. Steel with good toughness, plasticity, material flatness, and structural reliability.
It can withstand impact and dynamic loads, and has good seismic performance. The internal structure of steel is uniform and nearly isotropic. The actual performance of the steel structure is more consistent with the Theory of computation, which improves the reliability of the steel structure.

3. Highly mechanized manufacturing and installation of steel structures
Steel structures are easy to manufacture and assemble in the factory, with high precision, high production efficiency, fast on-site assembly speed, and short construction time. Steel structures are the most industrialized structures.
4. Excellent sealing performance of steel structure
The welded structure is completely sealable and can be arranged in high-pressure vessels, large storage tanks, pressure pipelines, etc. Manufacturing has good air and water tightness.

5. Heat resistant and non fire resistant steel structure
When the temperature is below 150 ° C, the performance of the steel changes very little. Therefore, steel structures are suitable for high-temperature workshops, but when 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 coefficient of steel will significantly decrease. At a temperature of 600 ° C, the hardness of steel is zero. In buildings with special fire protection requirements, steel structures must be protected with refractory materials to improve their fire resistance.

6. Poor corrosion of steel structures
Especially in steam and corrosive environments, gloves are easy to produce. Steel structures are usually required for selection and operation, To prevent corrosion of offshore platform structures in seawater, the following special measures should be taken: Zinc block anti-corrosion
7. Low carbon, energy-saving parking lots, green and environmentally friendly circuit labels
The steel frame is almost free of Construction waste and can be melted.

 

Application:

Compared with ordinary reinforced concrete structures, steel structures have the characteristics of strong uniformity, fast construction speed, good seismic performance, and fast recovery. The strength and elasticity of steel are usually the strength of bricks and concrete. Under the same conditions, the weight of steel components is relatively light. This steel structure has obvious early deformation precursors and is a flexible failure structure that can be detected and prevented in advance.

The steel structure plant has benefits of general weight, saving the foundation, smaller material, low costs, short construction period, large span, safety and reliability, beautiful looks and stable structures. Steel structure plants are used in big industries, stores, cold stores, high buildings, office buildings, parking places and dwellings.

 

Steel structure installation:
Prefabrication of steel elements:

The prefabrication and assembly of steel structures are carried out on the steel platform according to the installation sequence and process requirements, and welding quality must be ensured.
The distance between the pressed steel plate flange joint and the wall joint should be greater than 200mm, the length of the steel plate connection should not be less than twice the width of the steel plate, the width of the wall joint should not be less than 300mm, and the length should not be less than 600mm.

To facilitate the welding and ensure the welding quality, try the steel platform on the steel floor according to the dimensions specified in the building drawings. Try to place the rigid plate, connecting plate, bottom plate and beam (beam) on the column and beam.
In addition to producing and installing prefabricated steel components on steel platforms according to design drawings and specifications, it is also necessary to take into account the manufacturability of on-site installation and changes in installation dimensions.