I've noticed that a few of the structural export options that were available in previous versions, such as RAM Structural Systems (*.rss) and SFrame (*.tel) are no longer available. Is there an alternative?
Bentley Systems recommends using the *.ism format wherever possible for more consistent compatibility. The ISM tools are located in the same Structural Import/Export task panel where the Structural Import/Export tools exist (default position mapping character "E"). If you have any additional questions or issues related to this topic please contact the Bentley Building Products Support team.
http://communities.bentley.com/products/building/building_analysis___design/w/building_analysis_and_design__wiki/15297.can-microstation-solids-be-included-when-generating-ism-files