Zähigkeitsdargebote kaltgefertigter Hohlprofile bei tiefen Temperaturen

Toughness performance of cold-formed structural hollow sections for low temperatures.

European cold-formed hollow sections in general exhibit better toughness properties than required by EN 10219. However, limits in applying the toughness related rules for the choice of steel material in EN 1993-1-10 to cold-formed hollow sections still constitute barriers to free marketing. An assessment procedure has been developed which is based on toughness measurements and effective strains. Such plastic strains may occur in the bent areas associated with a toughness reduction. For the degradation of these toughness properties an appropriate temperature shift DTcf has been derived for both circular and rectangular hollow sections.