National Annex DIN EN 1998-1/NA:2021-07
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Determining Equivalent Loads in RFEM and RSTAB
RF-/DYNAM Pro - Equivalent Loads allows you to determine the loads due to equivalent seismic loads according to the multi‑modal response spectrum method. In the example shown here, this was done for a multi‑mass oscillator.
Modal Analysis | Determination of Masses in Nodes or FE Mesh Points
Modal Analysis | Visualization and Standardization of Mode Shapes
Modal Analysis | Results of Eigenvalues, Angular Frequencies, Natural Frequencies, Natural Periods, Modal Masses, Effective Modal Masses, Modal Mass Factors, and Participation Factors
Modal Analysis | Structure Modifications
- Can I export a response spectrum from RFEM 6 and use it in RFEM 5, for example?
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I need many mode shapes to achieve a sum of 90% effective modal mass. Can I limit the number of mode shapes for generating equivalent loads?
- What method is applied in the RF‑/DYNAM Pro - Equivalent Loads add-on module?
- I have used the RF‑/DYNAM Pro add-on module to generate the governing result combinations of seismic loads. What is the next procedure to perform the design of the individual structural components?
- Which programs can I use to calculate and design power plants?
- I noticed deviations from the map of DIN EN 1998‑1 or DIN 4149 in the online service "Geo-Zone Tool: Snow Load, Wind Speed, and Seismic Load Maps". Can you tell me which map is current and thus governing?
- How can I enter or read out a response spectrum via the COM interface in DYNAM Pro?
- Is it possible also to create a user-defined response spectrum in RF‑/DYNAM Pro?
- RF-/DYNAM Pro - Equivalent Loads includes the result tables "5.8/5.9/5.10 - Equivalent Loads". Which sum is displayed in the case of the "All mode shapes" option?
- What is the approach for seismic design in RFEM/RSTAB?
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