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Mode Shapes - Limiting Selection of Shapes
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?
Export of Response Spectrum
Can I export a response spectrum from RFEM 6 and use it in RFEM 5, for example?
Question
RF‑/DYNAM Pro - Forced Vibrations and RF‑/DYNAM Pro - Equivalent Loads perform the multi-modal response spectrum analysis. What are the differences?
Question
What is the meaning of the superposition according to the CQC rule in a dynamic analysis??
Results for RF-/DYNAM Pro Add-on Modules
There are two different add-on modules for a response spectrum analysis in RF‑/DYNAM Pro. What can be the reasons for the different results of both add-on modules?
Settings - Decimal Places
How can I adjust the number of decimal places in the standardized table values of a mode shape?
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How can I display the results of the RF‑/DYNAM Pro add-on module in the printout report?
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What method is applied in the RF‑/DYNAM Pro - Equivalent Loads add-on module?
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In RF‑/DYNAM Pro, the "From self-weight of structure" option is available in a mass case. Is it always necessary to activate this option in order to consider the dead load of the structure?
Question
What should be considered when using a failure of columns under tension in the RF‑/DYNAM Pro – Equivalent Loads add-on module?
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After calculation in the RF‑/DYNAM Pro - Equivalent Loads add-on module, the size of my file has increased significantly. The performance has worsened enormously. What could be the reason for this?
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I would like to perform seismic design of an irregular structure. Does RFEM automatically carry out the modal analysis (consideration of multiple vibration modes) on the spatial system, or do I have to use special settings for this?
Question
How do you distinguish between the response spectrum with equivalent loads method and the response spectrum without equivalent loads method in RFEM and RSTAB?
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Why can I only calculate seismic loads in one direction when using RF‑/DYNAM Pro?
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During the check in RF‑/DYNAM Pro, I get the message "No natural vibration case or dynamic load case has been selected for the calculation". Why?
Question
Is it possible also to create a user-defined response spectrum in RF‑/DYNAM Pro?
Question
How can I enter or read out a response spectrum via the COM interface in DYNAM Pro?
Question
When calculating a result combination, I get a message about an error in the result combination. Also, this RC is no longer selected for design in the RF‑STEEL EC3 add-on module and is displayed in red. What can I do?
Question
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?
Question
When designing seismic equivalent loads with a Response Spectra Analysis (RSA) in RFEM, how can I apply the modal response parameters Ie/R according to Sect. 12.9.1.2 in the ASCE‑7‑16 to my results?
Seismic Analysis
What is the approach for seismic design in RFEM or RSTAB 8?
Question
In the RF‑/DYNAM Pro - Equivalent Loads add-on module, it is possible to consider accidental torsional actions. Which calculation approach is behind the calculation? Which values have to be entered for the eccentricities eX and eY?
Displaying Equivalent Loads
Can I display the equivalent loads that have been generated by the RF‑/DYNAM Pro – Equivalent Loads add-on module?
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How is it possible to consider tension members in RF‑/DYNAM Pro?
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How many mode shapes do I need to consider in the dynamic analysis?
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What is the meaning of the superposition according to the SRSS rule in a dynamic analysis?
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- RF-DYNAM Pro | Natural Vibrations 5
- RF-DYNAM Pro | Equivalent Loads 5
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- RF-DYNAM Pro | Forced Vibrations 5
- RF-DYNAM Pro | Nonlinear Time History 5
- DYNAM Pro | Natural Vibrations 8
- DYNAM Pro | Equivalent Loads 8
- DYNAM Pro | Nonlinear Time History 8
- Concrete Structures
- Steel Structures
- Timber Structures
- Mechanical Engineering
- Process Manufacturing Plants
- Bridges
- Dynamic and Seismic Analysis
- Nonlinear Dynamics