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Frequently Asked Questions (FAQ)
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After creating a model with the model generator, it is not possible to adjust the model retroactively using the model generator.
However, the dialog entries of the model generator can be saved as a template and used again later. In this way, adjustments can be made to the imported template and thus the model can be recreated. Figure 1 shows how to save and Figure 2 how to import the generator data.
AnswerThe problem is in the differential smoothing of results. You now have interpolation set by plate, so the values are interpolated regardless of the adjacent plate.
AnswerThe information on 15 minutes for fire resistance can be switched on in the print log using the Edit/Select menu, where the Details chapter of RF-TIMBER Pro is switched on (because in the Details dialog the minute for fire is entered).
In RFEM, built-up sections called Castellated Beams are available in the cross-section library. They allow you to place openings in the web of sections such as W-shapes for example. The layout of the openings is parametric where the diameter and spacing can be adjusted. These cross-sections can further be designed in the RF-STEEL AISC add-on module.
You can then set separate cross-sections for the start and end of the member allowing you to create a tapered section.
AnswerParameters for shrinkage and creep can be found in Table 1.3 in the last column of the table Shrinkage/creep coefficients.
AnswerYou can influence the position of the imported model using the Edit Model dialog directly in RWIND Simulation.
AnswerWhen the project browser is moved or no longer appears on the program interface, you can access a context menu by right-clicking in the status bar. Then you click on "Attach all panels" to make it visible. This manipulation is also valid for the display of the table panel.
Since there are several yield strengths for stainless steel stored in the material library (0.2% yield strength and 1.0% yield strength) and, strictly speaking, the add-on module does not consider any standard for the design, but performs a pure stress analysis, the user must actively decide by manually specifying the yield strength. The video shows the procedure.
Flat surfaces can be related to almost any number of boundary lines.
The maximum b/t and h/w ratios are based on Table 1 or Table 2 depending on the internal forces in the members. For members subject to pure axial compression, Table 1 is used. For members subject to flexure or flexure+axial (beam-column), Table 2 is used.
In RFEM, the preset setting is to neglect the bending moment if the ratio is less than 1%. Therefore, the program shows “Class 4” since the check is based on Table 1.
To change this setting, go to Details and set the limit values to zero (as shown in Figure 1). By doing so, the program runs the check per Table 2 and no longer ignore the small moments.
Note: In the example model, where moments are zero at the support locations, the result is still shown as “Class 4 (non-designable)”.
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Wind Simulation & Wind Load Generation
With the stand -alone program RWIND Simulation, you can simulate wind flows around simple or complex structures by means of a digital wind tunnel.
The generated wind loads acting on these objects can be imported to RFEM or RSTAB.
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