Does the on-site welding connection of steel structure steel beams affect the structural safety?

Will not affect the structural safety.

Usually, due to transportation and other reasons, many parts of steel structure need to be assembled and welded on site, so there is no problem that on-site welding affects structural safety.

However, when welding on site, the welding quality should also be guaranteed. Due to the influence of welding environment and conditions, there are many factors affecting welding quality assurance, so more attention should be paid.

For important structural connections, welding should be carried out on site and welding quality inspection should be carried out. The specific inspection standard should be based on the strength grade of the steel structure that meets the requirements of the drawings.