Empirical Study on Fatigue Performance of Welded Square Pipe Joints in Steel Structure

Abstract

The fatigue performance of welded square pipe joints exists in steel as an independent
phase, which destroys the basic continuity of steel and increases the non-uniformity of
steel structure.Therefore, the fatigue properties of welded square pipe joints in steel have
a strong influence on the properties of steel.With the development of modern
engineering technology, the requirements of steel strength, toughness and machining
performance are increasingly strict, so the requirements for steel materials are also
becoming higher and higher. By analyzing the source and distribution of the fatigue
performance of welded square pipe joints in steel and the influence on the quality of
steel, this paper analyzes the non-metallic sundries in steel for readers' reference.