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Why Dlubal Software?


  • More than 86,000 users in 95 countries
  • One software package for all application areas
  • Free support provided by experienced engineers
  • Short learning time and intuitive handling
  • Excellent price/performance ratio
  • Flexible modular concept, extensible according to your needs
  • Scalable license system with single and network licenses
  • Proven software used in many well-known projects


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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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  • Extended Display of Surface Strains

    Extended Display of Strains in RFEM





    Display extended strains of members, surfaces and solids (e.g. important principal strains, equivalent total strains, etc.) in the Project Navigator - Results in RFEM as well as in Table 4.0.

    For example, you can display governing plastic strains when performing the plastic design of connections with surface elements.

  • Export RFEM or RSTAB Models to *.glb or *.glTF Format

    Create 3D glTF Models (*.glb and *.glTF Formats)



    Display Settings

    RFEM and RSTAB models can be saved as 3D glTF models (*.glb and *.glTF formats). You can use a 3D viewer to view, rotate, etc. the models.

    You can integrate the 3D glTF models into your own websites using JavaScript according to these instructions (as on the Dlubal website Models to Download).

  • Activation of the Camera Fly Mode in RFEM

    Camera Fly Mode

    With the view option Camera Fly Mode, you can fly through your RFEM and RSTAB structure. Control the direction and speed of the flight with your keyboard. Additionally, you can save the flight through your structure as a video.

  • Material Model Orthotropic Masonry 2D

    Material Model Orthotropic Masonry 2D

    The material model Orthotropic Masonry 2D is an elastoplastic model that additionally allows softening of the material, which can be different in the local x- and y-direction of a surface. The material model is suitable for (unreinforced) masonry walls with in-plane loads.

  • Effective Cross-Section of a Cold-Formed Z-Section in SHAPE-THIN 9

    SHAPE-THIN | Cold-Formed Sections

    SHAPE-THIN determines the effective cross-sections according to EN 1993-1-3 and EN 1993-1-5 for cold-formed sections. You can optionally check the geometric conditions for the applicability of the standard specified in EN 1993‑1‑3, Section 5.2.

    The effects of local plate buckling are considered according to the method of reduced widths and the possible buckling of stiffeners (instability) is considered for stiffened sections according to EN 1993-1-3, Section 5.5.

    As an option, you can perform an iterative calculation to optimize the effective cross-section.

    You can display the effective cross-sections graphically.

    Read more about designing cold-formed sections with SHAPE-THIN and RF-/STEEL Cold-Formed Sections in this technical article: Design of a Thin-Walled, Cold-Formed C-Section According to EN 1993-1-3.

  • RF-/STEEL Cold-Formed Sections | Features



    • Available for cold-formed L, Z, C, channel, top-hat, and CL sections from the cross-section database, as well as for cold-formed (non-perforated) SHAPE-THIN 9 cross-sections
    • Determination of the effective cross-section considering the local buckling and the distortional buckling
    • Cross-section ultimate limit state, stability, and serviceability limit state designs according to EN 1993‑1‑3
    • Design of local transverse forces for webs without stiffening
    • Available for all National Annexes included in RF-/STEEL EC3
    • RF-/STEEL Warping Torsion module extension (license required) for stability analysis according to the second-order analysis as stress analysis including consideration of the 7th degree of freedom (warping)
  • Activating Designs for Cold-Formed Sections in RF-/STEEL EC3

    RF-/STEEL Cold-Formed Sections | Input



    Since RF-/STEEL Cold-Formed Sections is fully integrated in RF-/STEEL EC3, the data is entered in the same way as for the usual design in this module. It is only necessary to select the design option for cold-formed cross-sections in the Details dialog box.

  • Design Results for a Cold-Formed Top-Hat Section in RF-/STEEL EC3

    RF-/STEEL Cold-Formed Sections | Results



    The design results are displayed in RF-/STEEL EC3 in the usual way.

    Among other results, the corresponding result windows include the effective cross-section properties due to axial force N, bending moment My, bending moment Mz, internal forces, and design summary.

  • Graphical Output of Response

    CADS Footfall Analysis | Solution

    There is a known complexity of calculating footfall response on irregular floors or staircases of any type. Footfall Analysis uses the RFEM model and the modal analysis results of RF-DYNAM Pro - Natural Vibrations to predict the vibration levels at all locations on a floor. A rigorous analysis method is essential to enable an accurate investigation of the dynamic behavior of the floor.

    The software incorporates the most up to date analysis procedures allowing the user to select between the two most used calculation methods available, namely the Concrete Centre Method (CCIP-016) and the Steel Construction Institute Method (P354).

  • Eigenmode mass participation graph

    CADS Footfall Analysis | Output

    • Overall maximum response factors and critical nodes
    • Resonant analysis (maximum response factor, RMS acceleration, critical node, critical frequency)
    • Impulsive (transient) analysis (maximum response factor, peak acceleration/velocity, RMS acceleration/velocity, critical node, critical frequency)
    • Vibration dose values for both resonant and impulsive analyses

    • Response factor vs walking frequency
    • Mass participation vs eigenmodes
    • Velocity time history

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Do you have questions or need advice?
Contact our free e-mail, chat, or forum support or find various suggested solutions and useful tips on our FAQ page.

(267) 702-2815

First Steps

First steps

We provide hints and tips to help you get started with the main programs RFEM and RSTAB.

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