Eine Methode zur Bewertung von Restspalten in Schweißnähten an T‐ und Kreuzstoßverbindungen

A method to assess root gaps in welded seams of T‐ and Cross joints. Design and welding codes require full penetration in case of complete butt splices. This often ends up to time‐ and cost‐intensive repair work for the executing steel work company. Quite recently, classification methods and along with these, a method of tolerating such partial penetrations (here: root gaps) to be considered right from the weld design or planning stage were actually missing, so that additional manufacturing work was preassigned from the outset. Within an AiF‐DASt‐research project [1] an assessment method has been developed basing on an accurate detection of root gaps by non‐destructive testing methods. That method guarantees the demanded structural reliability of a steel structure despite of leaving a weld that actually is to be rejected due to insufficient penetration according to the conventional codes.