Answer:
Yes, all supports with a spring constant are considered in the RF‑/DYNAM Pro add-on module. In detail, this means that the elastic supports are considered in the following areas:
- Determination of natural vibration
- Time history analysis of time diagrams
- Response spectrum analysis ("Forced Vibrations" and "Equivalent Loads")
The attached example clearly shows how the mode shapes of a member change when an elastic nodal support is added.