FAQ 002016 EN-US
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When analyzing structural elements susceptible to buckling by using the modules RF‑STABILITY (for RFEM) or RSBUCK (for RSTAB), it might be necessary to activate the internal division of members.
- How does RF‑STABILITY or RSBUCK determine the buckling load? According to the manual calculation, the respective buckling loads should be about 10% higher.
- Why is it not possible to use result combinations in RF‑STABILITY? It is possible in RSBUCK indeed.
I have calculated the effective lengths in my model by using RSBUCK/RF‑STABILITY.Which effective lengths are relevant for further analyses?
- Is it possible to import effective lengths from RF‑STABILITY or RSBUCK in RF‑/TIMBER Pro?
- What is the critical load factor and how is it possible to determine it?
- How are the effective lengths of frame columns determined in RFEM or RSTAB?
- Why are the stiffness modifications not taken into account when determining critical load factors in the RF‑STABILITY add-on module?
- Why there are different effective length factors calculated for one buckling mode?
- When calculating effective lengths of a simple structural system, I obtain too large effective length Lcr,y for the first buckling mode. What is the reason for this?
- How is the buckling load determined in RSBUCK if the most unfavorable value is transferred from RSTAB for a non-constant axial force distribution?