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Supporting Structure with Tapered Frame
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Description
Download the model of a supporting structure with tapered frames here and open it with the finite element analysis software RFEM.
This model is used in the free webinar 'Stability Analysis in Steel Structures with RFEM and RSTAB' presented in German version on November 24, 2020 (December 1, 2020, in English).
Model Used in
Keywords
Frame structure General method Warping torsion analysis EC 3 Eurocode 3
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Using Buckling Members for Unstable Models
If the calculation of a member model according to the second-order analysis is terminated with an error message, this instability is often caused by failed tension members: As soon as compressive forces appear in a tension member during a calculation step, this member is no longer considered in the following iterations. Thus, the model can become unstable.
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Material Database with Steels According to the Australian Standard AS/NZS 4600:2005
The material database in RFEM, RSTAB and SHAPE-THIN contains steels according to the Australian standard AS/NZS 4600:2005.Frequently Asked Questions (FAQ)
- I cannot see any members if the RF-/STEEL EC3 add-on module is selected as a "load case," why?
- What does the load application point in RF-/STEEL EC3 Warping Torsion refer to?
- To which axes refer the support rotations and support eccentricities in RF‑/STEEL EC3 Warping Torsion?
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What are the options in RFEM or RSTAB for determining the ideal elastic critical moment for any cross-sections and systems/loads?
Is it also possible to design flat steel (brackets, flat steel stringers of staircases)? - How can I perform the design of the tension resistance of a smooth column in a smooth bucket column base, i.e. the design against pulling out of the column?
- How can I create a twisted beam in RFEM?
- In the RF‑/STEEL EC3 add-on module, I obtain an extremely high design ratio for a member in the case of "Biaxial bending, shear and axial force." Although the axial force is relatively high, the design ratio seems to be unrealistic. What is the reason?
- For which programs is the STEEL Warping Torsion add-on module available?
- I have just noticed that the STEEL EC3 add-on module also calculates with γM0 = 1.0 when designing a tension member, although it should actually be γM2 = 1.25. How can I perform the design correctly?
- I design a cross-section created in the SHAPE‑THIN program by using the RF‑STEEL EC3 add-on module, but the program shows the error message "ER006 Invalid type of c/t-part for cross-section of type General." What can I do?
