The vibration aging process applies alternating stress to the component, which is superimposed with residual stress on the component to reach the yield stress of the material, resulting in local macroscopic and microscopic plastic deformation; This type of plastic deformation often occurs first at the points of high residual stress and stress concentration in the component, allowing the residual stress to be released and achieving the effect of reducing and homogenizing residual stress. The application of vibration aging technology has been in China for 25 years, and three technical standards have been successively issued, which have also been included in the construction specifications of building steel structures in China. The technology is mature

The process of conducting overall heat aging on important welded components and then combining and welding them with other components on site is a commonly used method in the manufacturing of building steel structures. It is generally believed that the stress relief effect of thermal aging is 40-80%. However, for building steel structures, residual stresses generated by on-site welding will still exist in the steel structure, and it is very difficult to further adopt thermal aging technology on site; Local heat aging can reduce the stress of the processed welded joint, but new heat treatment stress will be generated at the edge of the heating strip, and local heat aging is difficult to implement and consumes a lot of energy.