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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Answer
You can always find our current online training offer on our website at the following link:Select the relevant training and click the "Register" button at the bottom. Then, fill in the appearing form with your personal details, e-mail address and company data. The next page provides a brief overview and information about the training price. You can then proceed with the payment and pay either by PayPal or with one of the following credit cards:- Visa
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As the message says, the corresponding permissions to delete the files are either missing or in use.To avoid this problem, the service "Sentinel LDK License Manager" should be stopped first.Then, the files "hasplms.exe" and "hasplmv.exe" should be deleted from the directory C: \ Windows \ System32.Note 1: On some computers, the files are not located under C: \ Windows \ System32, but under C: \ Program Files (x86) \ Common Files \ Aladdin Shared \ HASP \Note 2: In some cases, it may happen that the files cannot be deleted. In this case, you have to move the files to the desktop, for example, and then delete them. -
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The "Intermediate Results" entry in the Results navigator of RF-CONCRETE Members or CONCRETE is only displayed if "a" certain result type has been selected (for example As, req, above ).
As soon as several results are displayed (for example As, erf, top and As, erf, bottom ), the "Intermediate Results" entry is no longer available.
The intermediate results refer specifically to one calculation (e.g. As, T ) and cannot be generated for several result types at the same time.
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I would just like to present one way how you can implement your project so that you reach a result. Our existing structure deforms without a false ceiling as follows.
We use the existing structure as well as the drag & drop function and the copying of elements while holding down the CTRL key to quickly model. It is important to ensure that existing pinned connections are displayed correctly. In this example, only one workflow is to be displayed so that the connections between columns and slabs are modeled rigidly. The bottom columns are represented as nodal supports with the Column in Z ... function.
The false ceiling should not transfer your loads to the existing continuous columns.
Figure 02 - Axial force in the columns
To compare the two models, you can evaluate the results by the two subsystems modeled in a file.
Figure 03 - Deformation of the two subsystems
# model @ 000772 #
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Which static height d is applied in RF-PUNCH Pro for the design on surfaces with variable thickness?
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For surfaces with a variable surface thickness, RF-PUNCH Pro iteratively determines the lowest structural height d along the critical perimeter and applies it on the safe side over the entire perimeter for the design. -
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Line supports describe the boundary conditions of all FE nodes available along a line: Displacements and rotations on these internal nodes can be prevented or limited by translational and rotational springs.
Line supports can only be defined on lines that belong to a surface or a solid. Enter the line number into the table column or text box of the dialog box, or select it graphically. If there is no surface or a solid, the error message appears.
If you are modeling without surfaces and solids, it is sufficient to delete the line support and adjust the support conditions.
Figure 02 - Calculation without line support
As an alternative to line supports, it is possible to use member elastic foundations for members in order to achieve an elastic support of the member over its entire length.
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Yes, by extruding lines and members, you can quickly create surfaces, grids, or girder gratings. However, if you want to generate an irregular grid with extended specifications, the Generate Grid dialog box is recommended.
In our case, we would like to create a regular grid by using the Extrude Member in Grid function .
Figure 01 - Functions for extruding lines and members
In the Extrude Member in Grid dialog box, you can make various settings.
Figure 02 - Dialog Box "Extrude Member into Grid"
As a result, we obtain the desired grid and can thus continue modeling.
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Materials are required to define surfaces, cross-sections, and solids. The material properties affect the stiffnesses of these objects.
There are 13 material models available if you have licensed the RF-MAT NL add-on module.
In the case of the abundance of material models, you have to make sure that you assign the corresponding material model to the members and their surfaces/solids.
In the example shown here, a member has been divided into surfaces for detailed analysis. An unused cross-section is still defined (marked in blue) and a material is stored for the member cross-section as well as for the surfaces. When editing an existing material to Isotropic Nonlinear Elastic 2D/3D , a 2D/3D material model is also defined for the created member cross-section, which leads to the error message.
When working with members and surfaces/solids, it is recommended to create more than one material.
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You can delete a selection of load cases in the navigator as follows:- Activate the "Data" tab in the project navigator.
- Select the load cases to be deleted under the "Load Cases and Combinations" → "Load Cases" branch.
- Right-click the selection and select "Delete."
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A weld must be connected to two elements at its two edges. Otherwise, the message shown in Figure 1 is displayed.
Figure 01 - Error message "Weld is not connected to two elements"
Elements 1, 3, and 5 are connected at the edges (marked in red) of the weld shown in Figure 2. Therefore, the message shown in Figure 1 is displayed.
Figure 02 - Elements 1, 3, and 5 connected to weld 1 (marked in red)
Modify the cross-section so that two elements are connected to the weld (Figure 3). This is also shown in the video.
Figure 03 - Elements 3 and 5 connected to weld 1 (marked in red)
Contact us
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.
First Steps
We provide hints and tips to help you get started with the main programs RFEM and RSTAB.
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.
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