Failure analysis of welded constructions

Abstract

In this article, we described the dependence of the failure of steel building constructions on the quality of their welded joints. On the basis of our own experience, we specified basic improprieties observed in the manufacturing process of welded joints. Examinations were made of welded constructions in which discontinuities were revealed after only a short period of use. Laboratory tests showed a series of technological and constructional shortcomings. On the basis of the examinations' results, some guidelines for a revision of the welding process were handed to one particular manufacturer.