Dlubal RFEM 5 & RSTAB 8 – Simplified Import and Export via Conversion File

Dlubal RFEM 5 & RSTAB 8 - Simplified Import and Export via Conversion File

Dlubal RFEM 5 & RSTAB 8 – Simplified Import and Export via Conversion File

By René Flori, Dlubal Software

In times of BIM, data exchange between the various disciplines of construction is becoming increasingly important. Because each software has its own specifications also for the names of cross-sections and materials, RFEM and RSTAB offer a conversion table to tackle this issue. In this table, you can easily define the material and cross-section descriptions for the import and export and comfortably select from Dlubal’s extensive material and cross-section library. If necessary, you can share this conversion table with other users of the program.

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Dlubal RFEM 5 & RSTAB 8 – Converting Loads to Member Loads

Dlubal RFEM 5 & RSTAB 8 - Converting Loads to Member Loads

Dlubal RFEM 5 & RSTAB 8 – Converting Loads to Member Loads

By Moritz Bertram, Dlubal Software

If you, for example, want to take into account ice loads on a model, an easy way to do this is to create them as load from coating.

To open the corresponding dialog box, select “Tools” -> “Generate Loads” -> “From Coating.” In the dialog box, you can specify the thickness and specific weight of the coating material. The according load is then automatically determined from the coating of the members.

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Dlubal RFEM 5 – Displaying Intersections of Free Loads

Dlubal RFEM 5 - Displaying Intersections of Free Loads

Dlubal RFEM 5 – Displaying Intersections of Free Loads

By Markus Baumgärtel, Dlubal Software

For free loads, RFEM allows you to display the intersections at the respective surface. In the Display navigator, you can select or clear the selection of this function by using the entry “Loads” -> “Free Loads” -> “Intersections.”

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Dlubal RFEM 5 & RSTAB 8 – Changing Directory Paths in Project Manager

Dlubal RFEM 5 & RSTAB 8 - Changing Directory Paths in Project Manager

Dlubal RFEM 5 & RSTAB 8 – Changing Directory Paths in Project Manager

By Sonja von Bloh, Dlubal Software

The network-compatible Project Manager controls the projects of all Dlubal programs in one central location. The projects are linked to the folders on the hard disk. The information is saved in the Pro.dlp file, which is located in the directory C:\ProgramData\Dlubal\ProMan by default. You can check the directory path of the Project Manager in the “Program Options” dialog box.

If the project folders are shifted to another drive, for example, then all links have to be updated in the Project Manager. Alternatively, you can make the changes directly in the Pro.dlp file. To do this, open it in an editor and change the directory paths by using the “Find and Replace” function.

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Dlubal RFEM 5 & RSTAB 8 – Exporting Printout Report Templates to Other Computers

Dlubal RFEM 5 & RSTAB 8 - Exporting Printout Report Templates to Other Computers

Dlubal RFEM 5 & RSTAB 8 – Exporting Printout Report Templates to Other Computers

By Robert Vogl, Dlubal Software

In RFEM and RSTAB, you can create printout templates and user-defined printout report headers. You can also export them to other computers.

The printout report templates are saved in the “RFEMProtocolConfig.cfg” or “RSTABProtocolConfig.cfg” file. You can find them in the master data folder of RFEM or RSTAB:
C:\ProgramData\Dlubal\RSTAB 8.xx\General Data
C:\ProgramData\Dlubal\RFEM 5.xx\General Data

Having copied these files to the corresponding directories of the target computer, you can now use the templates and headers there too.

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Dlubal RFEM 5 & RSTAB 8 – Printing Multiple Windows

Dlubal RFEM 5 & RSTAB 8 - Printing Multiple Windows

Dlubal RFEM 5 & RSTAB 8 – Printing Multiple Windows

By Lukas Sühnel, Dlubal Software

In RFEM and RSTAB, you can work with several windows at once. In this way, you can, for example, display several internal forces on one screen. Furthermore, you can print these windows in one picture. To do this, use the multiple windows printout.

When using the predefined templates, pay attention to the window numbers. .In this way, you can specify the arrangement of the windows for the printout report.

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Dlubal RFEM 5 – Generating Response Spectra According to Various Standards and NAs Using RF-DYNAM Addition II

Dlubal RFEM 5 - Generating Response Spectra According to Various Standards and NAs Using RF-DYNAM Addition II

Dlubal RFEM 5 – Generating Response Spectra According to Various Standards and NAs Using RF-DYNAM Addition II

By Frank Sonntag, Dlubal Software

The add-on module RF-DYNAM Addition II is used for determining equivalent loads of earthquakes according to the modal response spectrum analysis. Since version 5.02, you can select from many new standards and National Annexes for generating the equivalent loads.

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Dlubal RFEM 5 & RSTAB 8 – Considering the Elastic Slip Modulus of a Timber Connection

Dlubal RFEM 5 & RSTAB 8 - Considering the Elastic Slip Modulus of a Timber Connection

Dlubal RFEM 5 & RSTAB 8 – Considering the Elastic Slip Modulus of a Timber Connection

By Gerhard Rehm, Dlubal Software

For a timber connection, as shown in the figure, you can take into account the torsional spring rigidity (spring stiffness for rotation) of the connections. You can determine it by means of the slip modulus of the fastener and the polar moment of inertia of the connection. For the ultimate limit state design, you must use the design value of the slip modulus for calculation and for the serviceability limit state design, the mean value. Therefore, you obtain two torsional spring rigidities.

To take into account both rigidities, activate the “Modify Stiffness” subtab (select the corresponding check box in the “Calculation Parameters” subtab of the “Load Combinations” tab in the “Edit Load Combinations and Calculations” dialog box). As in this example, this allows you to multiply the torsional spring rigidity for all SLS combinations by a factor (1.95). Thus, you can calculate with a torsional spring rigidity of 863 kNm/rad in all ULS combinations and with 1684 kNm/rad in all SLS combinations. The elastic torsion of the foundation is not taken into account in this example.

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Dlubal RFEM 5 & RSTAB 8 – Merging Identical Definitions of Materials and Cross-Sections

Dlubal RFEM 5 & RSTAB 8 - Merging Identical Definitions of Materials and Cross-Sections

Dlubal RFEM 5 & RSTAB 8 – Merging Identical Definitions of Materials and Cross-Sections

By Andreas Niemeier, Dlubal Software

The “Merge Identical Cross-Sections/Materials” function allows you to compare a selected table entry with all other entries and merge identical table entries into one.

To open the context menu with this function, right-click in the description column of the material or cross-section table. If there is no corresponding identical entry for the selected cross-section / material, the mentioned function appears dimmed.

The merging function is important if the calculation model was created from several components from other files by using the Windows Clipboard. When pasting elements by means of the Clipboard, new materials and cross-section definitions are automatically created because of the missing interconnection for the concerned elements. In this way, double definitions are created when you paste several components. The merging function helps you counter this issue.

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Dlubal RFEM 5 – Preparing Isolines for Black and White Printout

Dlubal RFEM 5 - Preparing Isolines for Black and White Printout

Dlubal RFEM 5 – Preparing Isolines for Black and White Printout

By Alexander Meierhofer, Dlubal Software

The results of an FEM calculation are usually documented by means of isobands and isolines in the graphical display of results. In the following, we will look at preparing the results graphic for the black and white printout.

By default, the results are displayed in color by means of eleven isolines between the min and max extreme values. In the “Edit Isoline Value and Color Scales” dialog box, you can edit the number of isolines and colors. For the black and white printout, set the colors of the isolines to black. To view the values of the isolines, it is necessary to display the annotations of the individual isolines. In the Display navigator of RFEM, there are three options to do this.

~ Automatic specification of result values at isolines
The automatically generated annotations of the isolines are always shown along the steepest results grade. This can have the effect that in case of a small distance of the isolines the values overlap.

~ Display of results values at sections
By means of defining a new section to display the annotation of isolines, you can select the optimal line of greatest slope for the result values. To do this, select the “Show values on isolines” check box when defining a new section. You can activate or deactivate the various lines of greatest slope in the Results navigator. For printing the isolines, in the Results navigator you should deactivate the annotations for the sections (see figure).

~ Display of manually specified result values
By means of the manually applied isoline annotations, you can show the value of each individual isoline. Thus, the manually specified result values are an optimal addition to both the previously mentioned annotation options, because you can quickly specify an additional annotation for the individual isolines.

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