D5.C.4 Section Classification
The EC3 (EN 1993) design module in STAAD.Pro can design members with all section profiles that are of Class 1, 2, or 3 as defined in section 5.5 of the code. However, the design of members that have a Class 4 section profile are limited to:
- wide flange (with equal flanges)
- single channel
- single angle
- rectangular hollow sections
- circular hollow sections
Also built-up user sections that are class 4 sections are not dealt with in the current version of EC3 design in STAAD.Pro, unless they are defined as any of the section types given above.
The design of laced and battened members is not considered in the current version of EC3 (EN 1993) design module in STAAD.Pro. The current version also does not support the design of tapered section profiles or I-Sections with top and/or bottom plates or I sections with unequal flanges.