In addition to our technical support (e.g. via chat), you’ll find resources on our website that may help you with your design using Dlubal Software.
Frequently Asked Questions (FAQ)
Customer Support 24/7
Basically, all cross-sections of the solid and hybrid cross-section groups can be designed in the RF-/TIMBER Pro program. In Figure 01, they are shown on the right.
For more complex unsymmetric cross-section shapes, it may be necessary to adjust the allowable principal axis angle in the add-on module on a user-defined basis (see Figure 02).
AnswerThis message (Figure 01) could be caused, for example, by a rotated line imported from CAD. As soon as all rotations of the lines have been set to 0° (Figure 02), the message should no longer appear.
The additional options within the Detail settings of the functions "Move," "Rotate," or "Mirror" are suitable for this, see Figure 1.
Provided that it is necessary to draw an annular surface, whereby the center point, and inside and outside radius are known, proceed as follows:
- insert a node on the inner radius and the outer radius
- connect the two nodes by means of a line
- select these three objects
- open the "Rotate" function
- activate "Lines Between Nodes", as well as "Surfaces Between Lines"
- pay attention to the type of connecting lines created when rotating
AnswerResult values can be rotated by any angle (see Figure 01). With this setting, all result values will be rotated. For single walls and ceilings, it is not possible to define different orientations so far.
AnswerYes, it is possible. If a nodal support is arranged at a certain angle in RFEM or RSTAB, the geometry of the foundation at the node also follows this coordinate system (see Figure 01).
These axes are greyed out because the principal axes u and v are equal to the axes y and z. If a cross-section with rotated principal axes is available, u and v are available for selection.
Rotated surfaces are often used in RFEM to easily model and calculate geometrical conditions. However, if you use a large number of rotated surfaces in the model, you may experience performance drop. This is due to the definition of the surfaces, because they have to be generated in the background again and again using the boundary conditions if a change occurs in the structural system.
Therefore, it is recommended to replace the rotated surfaces by the surfaces of the 'Quadrangle' type, which significantly reduce the amount of data. Furthermore, the quadrangle surfaces also allow you to apply loads to parts of the surface only.
AnswerYes, this is done by creating a user-defined cross-section in the cross-section library.
Did you find your question?
If not, contact us via our free e-mail, chat, or forum support, or send us your question via the online form.
Wind Simulation & Wind Load Generation
With the stand-alone program RWIND Simulation, wind flows around simple or complex structures can be simulated by means of a digital wind tunnel.
The generated wind loads acting on these objects can be imported to RFEM or RSTAB.
Your support is by far the best
“Thank you very much for the useful information.
I would like to pay a compliment to your support team. I am always impressed how quickly and professionally the questions are answered. In the industry of structural analysis, I use several software including service contract, but your support is by far the best.”