Steel structure engineering is a part of the modern construction industry, and it is also a kind of construction technology widely used in modern architecture. Compared with traditional architecture, it has the advantages of short manufacturing cycle and can be recycled. The small edition of 3D steel structure [stock code 832621] will discuss with you the methods of steel structure assembly. 　　

 1、 Ground sample method: the real samples of components are set out on the assembly platform with a ratio of 1:1, and then assembled into components according to the position of parts on the actual samples.This assembly method is suitable for truss, frame and other small batch structure assembly. 

2、 Copying and copying assembly method: first, assemble the single side (single piece) structure with the ground sample method, then fix it by spot welding, turn it over to be a duplicate tire mold, and assemble another single side structure on it, and assemble it twice.This assembly method is suitable for truss structures with symmetrical cross sections. 　　

 3、 Vertical assembly method: according to the characteristics of the components and the stable position of the parts, the top-down or bottom-up assembly sequence is selected.This assembly method is suitable for the structure with stable placement, small height or large diameter cylinder. 

4、 Horizontal installation method: the component is placed in the horizontal position for assembly.This assembly method has some requirements for the size of the components in the steel structure, and is suitable for the slender components with small section but large length. 　　

 5、 Tire mold assembly method: the assembly method of positioning the component parts on its assembly position with the tire mold.This assembly method has certain requirements for the accuracy of the components in the steel structure, and is suitable for manufacturing large quantities of components and high precision products. 

In the process of steel structure assembly, the assembly must be carried out according to the process requirements. The parts and components assembled by the steel structure must be qualified products. The rust, burr, dirt, ice and snow, oil stains, etc. on the connection contact surface of the parts and components and the range of about 30-50 mm along the weld edge shall be removed.The splicing of plates and profiles should be carried out before assembly; the assembly of steel components should be carried out after the assembly, welding and correction of components, so as to reduce the residual stress of components and ensure the production quality of products.