With the continuous change of construction industry demand for raw materials, steel structure has been widely used in factory buildings. The main components of steel structure workshop are welding H-shaped steel column, beam and brace. If the welding deformation is not corrected, it will not only affect the overall installation of the structure, but also reduce the safety and reliability of the project. So what are the deformation correction methods of this steel structure, and which correction methods are mostly used in the construction now, the following article will explain in detail for you, let's learn about it.
The correction methods widely used in the production process include mechanical correction, flame correction and comprehensive correction. However, flame correction is a difficult work to operate. Improper control of methods and temperature will cause new and greater deformation of components. Therefore, flame correction should have rich practical experience. This paper makes a rough analysis on the types and correction methods of welding deformation of steel structure.
Types of welding deformation of steel structure and flame correction:
The main components of steel structure are welded H-shaped steel column, beam and brace. The following three flame correction methods are often used for welding deformation:
(1) Linear heating method;
(2) Point heating method;
(3) Triangle heating method.
The following describes the construction methods to solve different parts.
The following is the heating temperature for flame correction (made of mild steel)
Low temperature correction (500 ~ 600 ℃): cooling method: water
Medium temperature correction (600 ~ 700 ℃): cooling mode: air and water
High temperature correction (700 ~ 800 ℃): cooling method: air