Select a slab and at least 1 beam supporting this slab to open the extension.
- Only wide-flange shapes (W-Shapes) can be designed.
They are available in the AISC 14.0 (American hot rolled shapes) database you need to select in Robot before you open the extension.
- Non W-Shapes (such as Channels) can be selected if they bear on beams to be designed. They are not designed but they are used to determine load on the designed beam.
- Anything in the selection other than beams is filtered out automatically.