Answer:
The individual design checks (for example, bending and compression according to Section 6.3.3 EN 1993‑1‑1) cannot be deactivated. For a successful analysis, all required design checks are to be fulfilled.
Question
Is it possible to deactivate the individual design checks in the design modules, such as STEEL EC3 or ALUMINUM?
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In the default setting, the cross-section class for each member and load case is determined automatically in the design modules. In the input window of the cross sections, however, the user can also specify the cross-section class manually; for example, if local buckling is excluded by the design.
In the case of open cross-sections, the torsional load is removed mainly via secondary torsion, since the St. Venant torsional stiffness is low compared to the warping stiffness. Therefore, warping stiffeners in the cross-section are particularly interesting for the lateral-torsional buckling analysis, as they can significantly reduce the rotation. For this, end plates or welded stiffeners and sections are suitable.
The support conditions of a beam subjected to bending are essential for its resistance to lateral-torsional buckling. If, for example, a single-span beam is held laterally in the middle of the span, the deflection of the compressed flange can be prevented, and a two-wave eigenmode can be enforced. The critical lateral-torsional buckling moment is increased significantly by this additional measure. In the add-on modules for member design, different types of lateral supports on a member can be defined using the "Intermediate supports" input window.
In this article, you will learn how to model and design cable structures in RFEM 6 or RSTAB 9.
Use the "Independent mesh preferred" option in the FE mesh settings to create an independent FE mesh for the integrated objects. This allows you to generate a significantly more detailed and precise FE mesh for individual objects that are integrated into one another.
In the "Edit Section" dialog box, you can display the buckling shapes of the Finite Strip Method (FSM) as a 3D graphic.
In RFEM 6 and RSTAB 9, you have the option to enter "Visual Objects" as guide objects. You can import the file formats 3ds, stl, and obj.
These objects allow you to create a better reference to the dimensions.
Do you have individual column sections and angled wall geometries, and need punching shear design for them?
No problem. In RFEM 6, you can perform punching shear design not only for rectangular and circular sections, but for any cross-section shape.
Are effective length factors determined automatically from a model in the add-on modules for aluminum and steel design, or do I have to make adjustments?
I need to define different types of lateral intermediate restrains for a single element in RF-/STEEL EC3. Is this possible?
The calculation of a result combination in STEEL EC3 or ALUMINUM takes a very long time. What might be the cause, and how can I improve the performance?
Is there a way to prepare an EC3 buckling check without setting the intermediate support manually, or is there a workaround that can speed this up?
Which modules can be accessed via the COM interfaces RS‑COM and RF‑COM?
Why is it not possible to select sets of members for the serviceability limit state design in the respective design modules? I cannot specify sets of members under "Serviceability Data".
