Steel structure has been widely implemented in our country's manufacturing and construction industries. Its engineering quality directly affects the development of our country's economy, and various problems such as welding transition, structural deformation, and unstable welding points exist during the processing of steel structures. Therefore, in-depth research is required before work can be carried out.

Throughout the construction process, steel structures have been loved by high-rise buildings. In addition, there are many fields in which steel structures can be used. Although steel structures are more expensive than other buildings in our daily construction, they are relatively well-proportioned because of their structure. It can be called a high-quality building material. In the modern construction industry, steel structures have been greatly used.Steel structures can withstand relatively large shocks and vibration, so applying it to construction buildings is conducive to the mechanization of manufacturing.

The difficulty of steel structure construction lies in the construction and welding. Steel structure is a large-scale project. The maintenance of finished products is more difficult and the workload is also large. It generally has a large risk factor in the construction environment and is greatly affected by weather factors. Auxiliary work during construction must also be done well. During the welding process, it is also prone to deformation, and the building space also restricts the project. Welding tearing is likely to occur in the actual welding work, and it may be more serious.

High-strength welding technology means that the construction material itself has good performance during the actual construction process. After strict testing, it is necessary to ensure that the strength of the current material meets the standards, and there is a reasonable correlation between the two sides of the weld. Good welding points can be obtained in the actual welding process to ensure the quality of welding.All aspects of the current joint must be actively considered in the welding process, because all aspects of the joint must meet the strength requirements, so the quality of the current aspect is tested to improve the quality of the welding.

Regarding low-temperature welding technology, it mainly puts the welding process in a low-temperature state during the welding process. Due to its own characteristics, the actual low-temperature welding is more difficult. Affected by external factors, workers can effectively handle the current welding work in combination with the actual situation, create a sealed space, and lay a good foundation for the project.When welding thick steel plates when welding steel plates, it is important to avoid deformation and cracks caused by welding to ensure that the quality meets the standards.

When encountering welding deformation of steel structures, the welding cross-sectional area should be reduced as much as possible to meet the joint requirements, and the welding strength should be determined according to the size of the welding feet. Therefore, for high-convex welds, there are more welding metals, and the combination specification requirements will not increase the allowable strength, and the stress concentration coefficient will increase, which will affect the overall performance in the groove; For the number of welds, it is recommended to be a little less, each welding is based on multi-layer and multi-channel welding, and special care should be taken when welding thick plates; welds around the central axis must be applied symmetrically, that is to say, a shrinkage force can balance different shrinkage forces, so as to effectively control the deformation in the welding process; The method of reverse welding is applied, if the number of welds is less, it is recommended that each welding is based on multi-layer and multi-channel welding. Special care should be taken when welding thick plates; The welds around the central axis must be applied symmetrically, that is to say, a shrinkage force can balance different shrinkage forces, so as to effectively control the deformation in the welding process; The entire welding process is carried out from left to right, and the application of welding will be carried out from right to left. This method is called segmented side welding method. If the entire welding is carried out from left to right, the application of the weld will be carried out from right to left.This method is called segmented side welding.After welding, the thermal expansion plate can be separated outward along the inside of the welded plate, but if the heat diffuses into the inside of the plate, the plate can be expanded outward, so the plate can be recovered; before welding, the welded parts are used to offset the effective use of the shrinkage force, and at the same time, the shrinkage force is reduced by using the reaction force generated before the pre-bending welding; the shrinkage force is stabilized by the reverse force, which is mainly its shrinkage force, fixture constraints, binding force of the constituent parts, and the reaction force formed by the formed gravity cam.To arrange the welding sequence rationally, the scientific welding sequence is conducive to balancing the shrinkage force, that is, the other parts are pre-arranged in order to reduce the shrinkage force at one position and the shrinkage force at the welding position.

For steel structure buildings, affected by their own nature, their structure has the characteristics of diverse forms, wide adaptation range, simple maintenance work and convenient construction. In the steel structure construction process, the amount of welding is large, and most of the full-melt welds have high quality requirements and are more difficult to weld, so they are meeting current needs and improving the quality of the steel structure itself.