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Frequently Asked Questions (FAQ)
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AnswerIf a user-defined panel has already been created, this color scale is displayed in the Display Properties tab of the 'Printout Report' tab in 'Results' -> 'Palette'. If you set it as the default, the graphics in the report are updated automatically.
AnswerThere are two ways to enter cross-sections that are not contained in the cross-section library into the RFEM/RSTAB.
1. Cross-section programs SHAPE-THIN and SHAPE-MASSIVE
User-defined cross-sections can be created by means of the cross-section programs SHAPE-THIN or SHAPE-MASSIVE. The SHAPE-THIN or SHAPE-MASSIVE profiles can be imported via the cross-section library. To do this, click the 'Import Cross-Section from Program SHAPE-THIN' or 'Import Cross-Section from Program SHAPE MASSIVE' in the 'New Cross-Section' dialog box (Figure 1). In this dialog box, it is possible to select and import the desired cross-section. Please note that the cross-sections must be calculated and saved in SHAPE-THIN or SHAPE-MASSIVE before importing the cross-section values. It is only possible to import each cross-section individually.
2. Creating user-defined cross-section in RFEM/RSTAB
If the cross-section values of the manufacturer are known, they can be created in the cross-section database of RFEM/RSTAB using the option 'Create New User-Defined Cross-Section' (Figure 2). In contrast to the cross-sections created with SHAPE-THIN or SHAPE-MASSIVE, these user-defined cross-sections cannot be designed in add-on modules such as RF-/STEEL EC3, because the data necessary for the design - such as c/t-parts - is missing.
To access the user-defined profiles, click the 'Load Saved User-Defined Cross-Sections' button in the cross-section library (Figure 3).
User-defined cross-sections are saved across all items in the EigProf.dat file. Even when jumping a version (for example from X.19.XXXX to X.20.XXXX), these cross-sections shall be imported. The storage location of the user-defined cross-section library can be specified in the Program Options (Figure 4). It is possible to copy a user-defined profile database already created on a work center and paste it into the respective directory of the other work center. The user-defined profiles are thus also available on the other work station without having to import them again.
AnswerIt is possible that the user-defined profile database EigProf.dat is missing on your computer or it is damaged. Please open the 'Data Directories' tab of the program options and select the 'User-Defined Cross-Section Library' category.
Open the displayed directory and check whether the EigProf.dat file is available. If the file is available, please rename it.
If the path including the file does not correspond to the default path for RFEM 5.20 'C:\ProgramData\Dlubal\RFEM 5.20\General Data\EigProf.dat' in the program options, set this default path in the program options.
The user-defined assemblies from the RF-LAMINATE add-on module can be saved in any *.lyr file.
The stiffness matrices of orthotropic surfaces are saved in the MatrixConstants.cfg file for the user-defined matrices in the folder C:\ProgramData\Dlubal\Global\Master Data. The folder requires a standard installation!
An automatic transfer to all load cases or load combinations is not possible. However, it is possible to save the user-defined settings and import them in other load cases.To do this, it is necessary to open the dialog box for editing the value and color scales and carry out the user-defined settings. These settings can then be saved with "Save ...".This value scale is now available in all load cases and combinations and can be selected.
No, both the normal area loads and the free loads can be defined only on the local surface axis or in relation to the global axis system. Specifying the load direction in relation to a user-defined coordinate system is not possible.
AnswerUnfortunately, it is not possible.However, it is possible to design at least the downstand beams of a timber-concrete composite profile with the RF-/TIMBER Pro add-on module. To do this, the concrete flange in the material database must be defined as a new material in the material group 'Timber'.In addition to the design of the downstand beam, this option also allows you to get the stresses across the cross-section at each point. This FAQ explains the output of stresses.Even if this does not completely deal with the design of a timber-concrete composite profile, the user has at least information about the existing stresses and can carry out the design with it.
AnswerThe reason for this error message is the wrong title of the Excel sheet. The sheet with the acceleration data should be named "Acceleration Data" so that the module knows in which sheet the data is contained.
AnswerYes, you can define an area in the panel by clicking the button "options". Here you can define a customized area by moving the slider. In that case the areas with higher or lower stresses have no color.
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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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