On 16th and 17th May, an event was held at the "Haus der Technik" (Essen) on the FOSTA research association HOCHFEST, which deals with the processing of high-strength steels in steel construction and plant engineering in several sub-projects. The Institute of Steel Construction was represented with a lecture by Prof. Schaumann on the topic of "Fatigue strength of butt joints of high-strength offshore fine-grained structural steels with and without post-treatment for the construction of offshore wind turbines".