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  • More than 45,000 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.

  1. 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.

  2. 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.

  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
  4. 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.

  5. 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.

  6. 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).

  7. Analysis Input

    CADS Footfall Analysis | Features

    • Footfall Analysis links with RFEM, using its model geometry, so that the user is not required to create a second model specifically for footfall analysis
    • Allows the user to analyze any type of structure for footfall analysis, irrespective of the shape, material or use
    • Quick and accurate predictions of resonant and impulsive (transient) responses
    • Cumulative measurement of vibration levels – VDV analysis
    • Intuitive output enabling the engineer to improve critical areas in a cost-effective way
    • Pass/fail limit check in accordance with BS 6472 and ISO 10137
    • Available excitation forces: CCIP-016, SCI P354, AISC DG11 for floors and stairs
    • Frequency weighting curves (BS 6841)
    • Quick investigation for full model or specific areas
    • Vibration Dose Analysis (VDV)
    • Adjusting the minimum and maximum walking frequency as well as the walker’s weight
    • User-defined input damping values
    • Varying the number of footfalls for resonant response, user input or software calculated
    • Environmental response limit based on BS 6472 and ISO 10137
  8. 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
  9. Activated Display Option: Topology on the form-finding form

    Display of Topology on Deformed Structure

    With the activated option "Topology on form-finding shape" in the Project Navigator - Display, the model display is optimized based on the form-finding geometry. For example, the loads are displayed in relation to the deformed system.

  10. Display of Load Distribution in RFEM

    RWIND Simulation | Transfer of Wind Loads to RFEM or RSTAB



    When you start the analysis in the interface program, a batch process starts that puts all member, surface, and solid definitions of the RFEM/RSTAB model rotated with all relevant factors in the numerical RWIND Simulation wind tunnel, analyzes the model, and returns the resulting surface pressures as FE node loads or member loads to the respective load cases in RFEM and RSTAB.

    These load cases containing RWIND Simulation loads can be calculated and combined with other loads in load combinations and result combinations.

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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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Knowledge Base

In addition to our technical support (e.g. via chat), you’ll find resources on our website that may help you with your design using Dlubal Software.