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FAQ 004801 | Why is it not possible to use result combinations in RF‑STABILITY? It is possible in RSBUCK indeed.
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Why is it not possible to use result combinations in RF‑STABILITY? It is possible in RSBUCK indeed.Answer
While the existing axial force in members is used for the eigenvalue analysis in RSBUCK, the external load is increased until failure for the stability analysis in RF‑STABILITY. Thus, in contrast to RSBUCK, no linear eigenvalue analysis is provided and you can only use load cases and load combinations, see the figure.
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Dlubal FAQ Result combinations Stability analysis Stability check Frequently Asked Question FAQ about Dlubal Question and Answer about Dlubal
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This technical article analyzes the effects of the connection stiffness on the determination of internal forces as well as the design of connections using the example of a two-story, double-spanned steel frame.
- 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.
- 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?
- Why do I get high differences when designing a longitudinally stiffened buckling panel compared to the German and Austrian National Annexes?
- How can I perform the stability analysis for an edgewise supported flat steel, for example 100/5, in RF-/STEEL EC3? Although the cross-section is rotated by 90 ° in RFEM/RSTAB, it is displayed lying flat in RF-/STEEL EC3.
- How can I create a curved or curved section?
- Why are my imperfections displayed differently and can I adjust the display?
- Is it possible to manually specify a longitudinal reinforcement for the design in RF-PUNCH Pro?
- After the design with RF-/TIMBER Pro, I had a cross-section optimized. Why is the utilization of the optimized cross -section now exceeded?
