Vereinfachtes Verfahren für den Beulnachweis bei Ausnutzung plastischer Querschnittsreserven durch Einführung einer "wirksamen Blechdicke"

Simplified Method to exploit the plastic buckling resistance by introducing an "effectivep plate thickness".

The verification of buckling resistance according to the effectivep width method given in EC3 part 1-5 (section 4) is marked by a time consuming and complex calculation process. Moreover, for fatigue affected structures, such as bridges, the applicability is restricted. Within this paper, a simplified procedure is introduced which extends the linear approach of reduced stresses (EC3-1-5, section 10) by introducing an effective thickness. Thus, the plastic resistance of the resulting cross section can be exploited similar to the first approach, but at lower computational time.