Manufacturing process of steel frame structure

Steel frame structure is a structural form widely used in the field of architecture and engineering. It is composed of steel and has the advantages of high strength, high rigidity, and corrosion resistance, so it is widely used in high-rise buildings, large factories, bridges, and airports. This article will focus on the manufacture of steel frame structures.

1. Steel material selection

The manufacture of steel frame structures first requires material selection. Generally speaking, the selected steel should have the characteristics of high strength, high rigidity and corrosion resistance. Commonly used steel materials are Q235, Q345B, Q420 and Q690. Among them, Q235 steel has better strength and toughness and is suitable for some small and medium-sized buildings and projects; Q345B steel has better strength and toughness and is suitable for large buildings and projects; Q420 and Q690 steel are suitable for super high-rise buildings and large bridges, etc. field.

2. Steel processing

After the steel is selected, it needs to be processed. Generally speaking, steel processing includes cutting, welding, drilling and punching, etc. Among them, the cutting is to cut the steel according to the required length, generally using methods such as flame cutting, plasma cutting and laser cutting. Welding is to weld steel into a certain structural form, generally using methods such as arc welding, gas shielded welding and laser welding. Drilling and punching is to process holes in steel, generally using equipment such as drilling machines and punching machines.

3. Component Manufacturing

The component manufacturing of steel frame structure is a key link in the manufacture of steel frame structure. Generally speaking, the fabrication of components of steel frame structures includes beams, columns, frames and connectors, etc. Among them, beams and columns are the most commonly used components in steel frame structures, and are generally assembled by welding or bolting. The frame is the main part of the steel frame structure and is generally assembled by welding. The connector is an important part of connecting the various components of the steel frame structure, and is generally connected by bolts, welding and riveting.

4. Coating treatment

After the steel frame structure is manufactured, it needs to be painted. Coating treatment can increase the corrosion resistance and aesthetics of steel. Generally speaking, painting treatment includes rust removal, painting and baking. Rust removal is to remove the rust on the surface of the steel to ensure the coating effect. Spray painting is to spray primer and topcoat on the steel surface, generally using a spray gun. Baking paint is to cure the painted steel at high temperature to increase the adhesion and hardness of the coating.

5. Quality inspection and acceptance

After the production and manufacture of the steel frame structure is completed, quality inspection and acceptance are required. Quality inspection and acceptance can guarantee the quality and safety performance of the steel frame structure. Generally speaking, the quality inspection and acceptance of steel frame structures includes visual inspection, dimensional measurement, mechanical performance testing and non-destructive testing, etc. Appearance inspection is to check the surface quality and coating effect of the steel frame structure. Dimensional measurement is to check whether the size of the steel frame structure meets the design requirements. The mechanical performance test is to check whether the strength and stiffness of the steel frame structure meet the design requirements. Non-destructive testing is to check for defects and hidden dangers in steel frame structures.

To sum up, the production and manufacture of steel frame structure is a complicated process, which needs to go through links such as steel material selection, processing, component manufacturing, painting treatment, and quality inspection and acceptance. Only through strict manufacturing process and quality control can the quality and safety performance of the steel frame structure be guaranteed and contribute to the development of the field of architecture and engineering.