AD.2007-1001.1.6 Front-to-Front Channels
STAAD.Pro has been enhanced to support the definition of steel channel sections being defined in an arrangement with the toes pointing to each other with a given spacing.
Front to front channel steel sections can be defined in the Properties dialog box by selecting the required channel section and choosing the FR (Double Channel – Front to Front) option and any spacing required between the channels.
The command that appears in the STAAD.Pro STD data file is:
<Member List> TABLE FR C4X5 SP 0.5