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)
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AnswerNo, this possibility does not exist. Node deformations are always output in relation to the global coordinate system, regardless of whether the structure input was done using a user-defined coordinate system.Optionally, the output of local bar or area deformation results may help as needed.
AnswerIn order to be able to calculate deformations in state II in RF-CONCRETE surfaces, one or more load cases / combinations must first have been selected in the mask "1.1 Basic information" in the "Serviceability" tab (see Figure 1).A little further down in this mask you will also find the selection, whether the "Analytical" or "Nonlinear Calculation" should be performed.If " Analytical ... " is selected, the "Deformation with RF-CONCRETE Deflect" must be activated in the detail settings (see Figure 2).If " Nonlinear ... " is selected, the "deformations" are also found under the options for non-linear calculation. The deformations are activated here by default (see Figure 3).Further information on the deformation calculation with RF-CONCRETE Deflect and RF-CONCRETE NL can also be found on our homepage.
First, open the result diagram of a member, line support, section or line. Then select the desired internal forces and deformations.
Finally, right-click the navigator and select Save Check Boxes State.
Use Refresh Check Boxes State (this button is now available) to cancel your settings.
It is right that the rib members defined in the structure are not considered when calculating realistic deformations in state II. However, you can solve this issue by displaying the downstand beams not as rib member but by replacing them as surface model. Thus, the complete slab can be displayed as plate structure and designed with RF-CONCRETE NL in RF-CONCRETE Surfaces.
I superimpose two of the load cases into one result combination by using the 'Or' criterion. The results graphic of the result combination, however, shows deformations smaller than the two contained load cases.
Furthermore, I get a positive as well as a negative maximum value for the RC, despite the fact that the individual load cases yield positive deformation values.
In the result combination, RSTAB superimposes the (orthogonal) components u-x, u-y und u-z of the individual load cases and creates the total deformation u. According to the definition of the coordinate system, the orthogonal components of the load cases can be positive or negative. Therefore, it is only a display issue, because the deformations u shown in the graphic are not definitively specified in terms of their direction.
The determination of the RC extreme values yields two values: maximum and minimum. The geometric addition of the minimum and maximum value yields the correct deformation value of the result combination. The results table shows the correct value.
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