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Tips and Tricks (Cold-Formed Structural Components) | RFEM | Info Day Online | 15.12.2020 | 4/4
Video
First Steps with RFEM
Description
In the fourth part of the Dlubal Info Day Online recording, Andreas Niemeier shows the design options for cold-formed structural components according to EN 1993‑1‑3 in SHAPE‑THIN and RFEM.
Keywords
Cold-formed steel design Cold-formed cross-section Cold-formed plate Cold-formed section Thin-walled components EN 1993-1-3 DIN EN 1993-1-3
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Designing Local Transverse Forces According to EN 1993-1-3
The design of cold-rolled steel products is defined in EN 1993-1-3. When designing the ultimate limit states, it is also necessary to ensure that local transverse forces do not lead to compression, crippling of the web or local buckling in the web of the sections.
![Distribution of Forces and Moments in Column Base According to [1]](/-/media/Images/website/img/000001-010000/009601-009700/009638.png?la=en-US&mlid=7D34CEAAE7354583A29169095622B515&hash=1C29D4703C59F464778B8861B097C4BCC2E2CBC1)
![System and Loading According to [1]](/-/media/Images/website/img/000001-010000/009601-009700/009634.png?la=en-US&mlid=F0F0A23924B8424CA1C2905961DF676B&hash=EB7EDB8B793523A4241420070F0B8F5E64C0935D)
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.
- How do I activate or run RF‑/STEEL Cold-Formed Sections?
- I would like to design a cross-section in RF‑/STEEL Cold‑Formed Sections that is not contained in the cross-section library of RFEM/RSTAB. What should I do?
- Why do I get large differences for the design of a longitudinally stiffened buckling panel in comparison with the German and Austrian National Annex?
- How are the signs for the release results of a line release and line hinges interpreted?
- How can I create a curved or arched section?
- How can I perform the stability analysis in RF‑/STEEL EC3 for a flat bar supported on edges, such as 100/5? Although the cross-section is rotated by 90° in RFEM/RSTAB, it is displayed as lying flat in RF‑/STEEL EC3.
- How are hot-dip galvanized components considered for fire resistance in the RF‑/STEEL EC3 add-on module?
- How is the rotational stiffness of a buckling stiffener determined in PLATE‑BUCKLING?
- In RF‑/STEEL EC3, is the "Elastic design (also for Class 1 and Class 2 cross-sections)" option under "Details → Ultimate Limit State" considered for a stability analysis when activated?
- How can I get the member end forces to design the connections?
