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Instability
My model is unstable. What could be the reason?
Instability
My model is unstable. What could be the reason?
Question
What are the stiffness reduction factors k33 and k88 in the Multilayer Surfaces Add-on?
Creating Response Spectrum ASCE 7-22
How can I create a response spectrum according to ASCE 7‑22?
Effective Lengths for Steel Stability Design
How do I define effective lengths when designing steel members in RFEM 6?
Line Hinge of Slab-Wall Connection
I would like to connect my masonry wall to a reinforced concrete slab. What is the best way to create a line hinge?
Unsymmetrical Cross-Section (UPE)
I am having trouble with the design of a steel structure. For a singly symmetric cross-section (UPE), the program cannot perform the stability analysis. It reports that the Equivalent Member Method 6.3.3 is not applicable for an unsymmetrical cross-section. Is it possible to design such cross-sections in the program?
Adapted Method (Enable Double Bending)
I cannot analyze a UPN cross-section subjected to double bending in the program. Is it possible to do this in the program?
Member Design Supports for Deflection Checks
How do I define a member as a cantilever and not as supported at both ends for serviceability or deflection design?
Stress Ratio
The limit stress is activated, but my stress ratio is “non-designable” in the Stress-Strain Analysis add-on. What could be the reason?
Design of Member Sets
I have activated Steel Design in my model and defined design types for the members. Why can I not design the superordinate member set?
Overstrength Factors
How do I include the overstrength factor(s) Ωo in the ASCE 7 load combinations?
Unstable Model - Troubleshooting
My model in RFEM 6 / RSTAB 9 is unstable. How can I fix it?
Redundancy Factors
How do I include the redundancy factor(s) ρ in the ASCE 7 load combinations?
Exclude Lateral Torsional Buckling Check
My beam has a continuous lateral support and therefore lateral torsional buckling (LTB) is not a concern. How do I define the effective length?
Response Spectrum Analysis
How can I perform an earthquake analysis in RFEM 6 and RSTAB 9?
AISI Table B4.1-1 Applicability Limits
Does RFEM check the applicability limits of AISI Table B4.1‑1?
Standardized Sections for AISI Design
Which standardized sections are valid for AISI cold-formed steel design in RFEM 6?
Export of Response Spectrum
Can I export a response spectrum from RFEM 6 and use it in RFEM 5, for example?
- 005113
- Timber Design for RFEM 6
- Timber Design for RSTAB 9
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- Aluminum Design for RFEM 6
- Aluminum Design for RSTAB 9
- Steel Design for RFEM 6
- Steel Design for RSTAB 9
- Stress-Strain Analysis for RFEM 6
- Stress-Strain Analysis for RSTAB 9
- Steel Joints for RFEM 6
- Timber Structures
- Concrete Structures
- Steel Structures
- Structural Analysis & Design
- Eurocode 2
- Eurocode 3
- Eurocode 5
- Eurocode 9