Answer:
The standard EN 1993‑1‑8 specifies which kinds of cross-sections can be considered. The designs are interpreted in such a way that only one wall thickness is possible for a cross-section. If there is an invalid cross-section, the corresponding message is displayed (see Image 01). Therefore, the question about the extension for such cross-sections must be answered in the negative. The standard is largely based on tests / research. Therefore, the focus is on hot-finished hollow sections according to EN 10210 and cold-formed hollow sections according to EN 10219.
