Steel Frame
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Description
In RFEM and RSTAB, it is possible to define nonlinear properties for member end releases. In addition to activity diagrams and the force-deformation relationship, you also have the option to simply use the signs of the internal forces as criteria for the release effectiveness. In this way, you can specify which internal forces should be transferred at the member end.
This model is used to explain the options.
Model Used in
Links
- Useful Tools for Fast Generation of Structures in RFEM
- Useful Tools for Fast Generation of Structures in RSTAB
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Releases Depending on Internal Forces
In RFEM and RSTAB, you can define nonlinear properties for member end releases. In addition to activity diagrams and the force-deformation relationship, you also have the option to simply use the signs of the internal forces as criteria for the release effectiveness. In this way, you can specify which internal forces should be transferred at the member end.
SHAPE-THIN | Cold-Formed Sections
SHAPE-THIN determines the effective cross-sections according to EN 1993-1-3 and EN 1993-1-5 for cold-formed sections. You can optionally check the geometric conditions for the applicability of the standard specified in EN 1993‑1‑3, Section 5.2.
The effects of local plate buckling are considered according to the method of reduced widths and the possible buckling of stiffeners (instability) is considered for stiffened sections according to EN 1993-1-3, Section 5.5.
As an option, you can perform an iterative calculation to optimize the effective cross-section.
You can display the effective cross-sections graphically.
Read more about designing cold-formed sections with SHAPE-THIN and RF-/STEEL Cold-Formed Sections in this technical article: Design of a Thin-Walled, Cold-Formed C-Section According to EN 1993-1-3.
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