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  • Answer

    The simultaneous processing of RFEM or RSTAB files is not possible. When you open the corresponding file, it is locked and prepared for use in RFEM or RSTAB in the user's local working directory. Any other user can then open the RFEM or RSTAB file as a copy. A multiuser mode is not planned in the medium term.
  • Answer

    Basically, you can use the program SHAPE-THIN to assign the cross-section name you want. However, it is important to use the same name for different cross-sections.

    Due to the data structure stored in the program, the program overwrites the profiles with identical descriptions. In this case, the database of the program SHAPE-THIN is linked to the programs RFEM and RSTAB. A double data storage would inevitably lead to conflicts on the part of the program.

    If the user wants to repeatedly assign identical names, he can delete the file EigProf.dat in the respective directory (for example, C: \ ProgramData \ Dlubal \ RFEM 5.xx \ General Data). In this file, the user-defined profiles are saved.

  • Answer

    You can save the manually or automatically created and adjusted Combinations schemes and use them in another RSTAB/RFEM file. The video shows a simple example.
  • Answer

    The directory structure in the Project Manager is administered by the PRO.DLP file. By default, it is located in the folder C:\ProgramData\Dlubal\Global\Project Manager. You can check the directory paths of the project manager in the 'Program Options' dialog box (Project Manager menu 'Edit → Program Options'), see also Figure 1. This database file is available to all users. If you want each user to use a different project structure, you can create a PRO.DLP for each user (for example, PRO_User1.DLP, PRO_User2.DLP). The relevant database file must then be set by the respective user in the program options after carrying out a switch of each user. This is also demonstrated in the video.

  • Answer

    The user-defined materials are available to all users. All users must have full access rights to the path of the user-defined material library.

    User-defined materials are saved in the file Materials_User.dbd. For a standard installation, the file is located in the directory C:\ProgramData\Dlubal\[Program] [Version]\General Data. The file path can also be viewed in the program options (see Figure 1).

  • Answer

    There 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.
  • Answer

    It 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.

  • Answer

    Yes, the problem might also be caused by RFEM. Previewing RFEM files in Windows Explorer may cause Explorer to react more slowly.

    For a possible solution, proceed as follows:

    Open the file ThmShellEx64.dll in C:\Program Files\Common Files\Dlubal, and rename it to BACKUP-ThmShellEx64.dll.

    In case of working with 32Bit version, open the ThmShellEx.dll file in C:\Program Files (x86)\Common Files\Dlubal, and rename it to BACKUP-ThmShellEx.dll

    Afterwards, a restart of the PC is required

  • Answer

    The data of an RFEM/RSTAB structure is saved as packed by default. If this packing process is interrupted or disturbed by another software, a faulty archive may occur.
    You can upload your RFEM/RSTAB file via our website and we will try to save the data. Please see the link below.

    To avoid this problem in the future, please save very large files locally on your PC and then move them to a network path, if necessary.
    Pay attention to the correct settings in your antivirus software, as they may also cause problems when reading and writing data.

  • Answer

    Depending on the geometric requirements of the bricks, these are integrated into classes 1 - 4. All geometric requirements for the brick classes are listed in Table 3.1 of the EN 1996-1-1. An example of assigning the classes according to the total percentage of the brick holes (% of the gross volume) is as follows:

    Class 1 (all stones)
    ≤ 25

    Class 2
    vertical hole ratio> 25; ≤ 55

    Class 3
    vertical hole ratio ≥ 25; ≤ 70

    Class 4
    horizontal hole ratio> 25; ≤ 70

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First Steps

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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