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  • Answer

    An option provides the Windows property of the corresponding file. There, you will find information about when and by whom the file was created or modified (see Figure 01).

    You can find a detailed view in the 'History' of the model, which can be accessed via the Project Manager (see Figure 02). This information can also be found directly in the General Data of RFEM or RSTAB (see Figure 03). An automated retrieval of data, for example using a script, is not possible.

  • Answer

    The directory tree in Project Manager is managed in the PRO.DLP file. This is located in the C:\ProgramData\Dlubal\Global\Project Manager folder by default. You can check the directory paths of Project Manager in the "Program Options" dialog box (click the Project Manager menu "Edit → Program Options"), see also Figure 01. This database file is available to all users. If each user should 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 each switch of a user. This is also shown in the video.

  • When running the project manager according to FAQ 002927, all files are displayed by default. How can I set the option to only display RFEM files without having to click RFEM each time?


    In this case, start the project manager from the respective program (RFEM, RSTAB ...). If the project manager is started directly from RFEM, only RFEM files are displayed by default, see Figure 01.


  • Answer

    For a surface load, such an entry is not possible as there is no load type that can have the force act locally on the projected surface. In this case, you need to use line loads. These can later be loaded according to the line rotation. The detailed procedure is shown in the video. As you can see in the video, the lines have to be integrated manually into quadrangle surfaces. Furthermore, you should check the line rotation.
  • Answer

    The customer support and care is a fundamental pillar of the company policy.

    Our free technical support is available for any questions related to the Dlubal Software products. Take advantage of the following options to contact our experienced Support Team:
    • E-mail
    • Live chat
    With the Service Contract Pro, we provide additional services. The customers with an active Service Contract Pro can benefit from:
    • Support via Phone
    • Online support via video conferencing
    Project Support (on an hourly or daily basis)
    If you need a support throughout the realization of your project, we can provide the following services, among other things:
    • Modeling of a structure
    • Load application and combinations
    • Design according to various standards
    • Creating verifiable printout reports
    • General editing of the project
  • Answer

    Dlubal Software provides you with support for your projects.

    You can find details and information about the type and extent of the possible services as well as the costs on our website. (See the link below.)

    In case of any question, please contact our sales department.
  • Answer

    The combination of the purchase types buy and rent is possible. An active service contract ensures that rented software is compatible with the purchased programs and add-on modules. If you have not yet concluded a service contract, please contact the sales department for advice.


    • You use one or several purchased licenses of RFEM or RSTAB with various add-on modules and need more licenses of RFEM or RSTAB for a particular project.

      Rent the additionally required number of licenses and add-on modules for a period of 1, 3, or 6 months to use it for your work on the project.

    • You use one or more licenses of RFEM or RSTAB without add-on modules. The various add-on modules should only be used for the projects with a limited duration, if necessary.

      Rent the add-on modules that exactly meet your needs for a period of 1, 3 or 6 months.

    As an alternative to rent, you can use the licenses and add-on modules as a subscription for a period of 12 months each. Subscriptions are automatically extended for further 12 months if they are not completed on time.

    Please contact our sales department for advice.
  • Answer

    The projection plane and the load direction are different parameters and independent of each other.

    While the load direction represents the actual direction of the acting load, the projection plane, together with the corresponding coordinates of the load position, describes the plane from which the load's position is projected onto the surfaces subjected to the load.

    In the "Edit Free Rectangular Load" dialog box, the graphic to the right is used for information purposes, see Figure 01.

    Figure 01 - Edit Free Rectangular Load

  • Answer

    The RF‑FORM‑FINDING add-on module provides two form-finding types that you can alternatively assign to each start surface entry.

    The first option called "Standard" shifts the relevant FE nodes to all three spatial directions X, Y, Z as long as the membrane's constant, provided surface stress is in equilibrium with the boundary conditions.

    The second option "Projection" secures the relative horizontal X', Y' position of the FE nodes related to the normal plane of the surface stress reference axis and only displaces the vertical Z' position perpendicular to the plane until the surface stress modified by the membrane is in equilibrium with the slope Peripheral reactions is completed.

    In general, the "Standard" method is the right choice for all non-conical models. In the case of conical membrane shapes, using the standard method results in an unclear situation. Here, the tangential stress component of the surface stress is mutually suspended due to the circular arrangement, and displaces all FE nodes regardless of the radial position and surface stress value to reach the global equilibrium, taking into account the radial prestress component on the cone axis. In this case, it is necessary to select the projection method in order to obtain the continuous conical shape. The resulting shape has a non-constant final surface stress due to the projected surface stress specification.

  • Answer

    In the case of the planes that rest perpendicular to the global coordinate system, it is relatively easy because the coordinate of all points in the plane must be the same. However, if there is a plane that generally rests in space, it is necessary to create a user-defined coordinate system first and then move the node in the user-defined coordinate system.

    Yet the fastest option is the 'Project' feature (see the video). This allows you to quickly move the outside nodes to the target plane.

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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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