Webinar 2: Advanced modeling features in RFEM
Free Online Webinar
- Buckling behavior of members utilizing RF‑STABILITY
- Use of "line releases" for the connection of beam to surface
- Addressing FEA singularities with concrete surface design
- Nonlinear material modeling with a plastic stress analysis of a steel connection
- Up to 00:02:17: Introduction
- Up to 00:13:18: Addressing instabilities with RF-STABILITY
- Up to 00:21:02: Use of "line releases" for beam to slab interaction
- Up to 00:24:40: Use of "sections" for surface results
- Up to 00:27:20: Use of the "clipping plane" for surface/solid results
- Up to 00:39:53: Addressing FEA singularities with "average regions"
- Up to 00:58:54: Nonlinear plastic analysis of FEA connection with RF-MAT NL
- Up to 01:01:35: Conclusion
Amy Heilig, PE
CEO - USA Office
Sales & Technical Support Engineer
Amy Heilig is the CEO of the USA office located in Philadelphia, PA. In addition, she provides sales and technical support and continues to aid in the development of Dlubal Software programs for the North American market.
Steel Concrete FEA Designs Structural Analysis Structural Analysis Tutorial Advanced feature Instability Stability Stability critical load factor Line release Section Profile section Clipping Plane Average Region Singularity Plastic Analysis Nonlinear
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The RF-/STEEL EC3 add-on module automatically transfers the buckling line to be used for the flexural buckling analysis for a cross-section from the cross-section properties. In particular for general cross -sections, but also for special cases, the assignment of the buckling line can be adjusted manually in the module input.
The model is constructed by means of parameters for geometry and loads and regenerates when the parameters are changed.
RF-/STEEL Cold-Formed Sections Module Extension | Design of cold-formed sections according to EN 1993-1-3
3D model of the butadiene storage sphere in RFEM (left) and the mode shape from RF-DYNAM Pro (right)
3D model of the steel structure with the results of structural design according to GB 50017-2003 in RSTAB (© Novum Structures LLC)
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.
- 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 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 the signs for the release results of a line release and line hinges interpreted?
- 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 cross-section class 1 and 2)" option under "Details → Ultimate Limit State" considered for the stability analysis when activated?
- How can I get the member end forces to design the connections?
- I would like to calculate and design "temporary structures." What do I need for this?
- How can I create a drilled beam in RFEM?
Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements
Stability analysis according to the eigenvalue method