Answer:
For seismic design, the add-on modules RF‑/DYNAM Pro - Natural Vibrations and RF‑/DYNAM Pro - Equivalent Loads are available in RFEM 5 and RTSTAB 8. They allow you to perform the multimodal response spectrum analysis. After the analysis in the add-on modules, the calculated seismic loads are exported to load cases, which can be evaluated as usual.Furthermore, you can evaluate the story drift and the horizontal shear of the building. These and other features are described in detail in the webinar "Response Spectrum Analysis in RFEM".
