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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. 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.

  2. Automatic Preliminary Form-Finding of Membrane Surfaces

    Activating the "Show Preliminary Form-Finding" option in the shortcut menu leads to an automatic preliminary form-finding according to the saved form-finding properties when you change the structure of membrane surfaces. This interactive graphics mode is based on the force density method.

  3. Foil Cushion with Material Model Isotropic Plastic 2D/3D

    Nonlinear Material Law for Membranes

    In RFEM, there is an option to couple surfaces with the stiffness types "Membrane" and "Membrane Orthotropic" with the material models "Isotropic Nonlinear Elastic 2D/3D" and "Isotropic Plastic 2D/3D" (RF-MAT NL add-on module required).

    This functionality enables the simulation of the nonlinear strain behavior of, for example, ETFE foils.

  4. Member Hinge Nonlinearity "Scaffolding Diagram"

    The member hinge nonlinearities "Scaffolding - N phiy / phiz" and "Scaffolding Diagram" enable the mechanical simulation of a tube joint with an inner stub between two member elements.

    The equivalent model transfers the bending moment via the overpressed outer pipe and after positive locking additionally via the inner stub, depending on the compression state at the member end.

  5. Member Type "Dashpot"

    The member type "Dashpot" can be used for time history analyses in RFEM/RSTAB with the add-on modules RF-/DYNAM Pro - Forced Vibrations and RF-/DYNAM Pro - Nonlinear Time History. This linear viscous damping element considers forces dependent on velocity.

    With regard to viscoelasticity, the member type "Dashpot" is similar to the Kelvin-Voigt model which consists of the damping element and an elastic spring (both connected in parallel).

  6. Steels according to the Australian standard AS/NZS 4600:2005 in Material Library

    Material Database with Steels According to the Australian Standard AS/NZS 4600:2005

    The material database in RFEM, RSTAB and SHAPE-THIN contains steels according to the Australian standard AS/NZS 4600:2005.
  7. TeamViewer in Help menu of RFEM and RSTAB

    Link to TeamViewer in Help menu

    By opening the Help menu of RFEM and RSTAB, it is possible to directly access the TeamViewer. Customers with a Service Contract Pro can thus benefit from an easy and quick online support via video conference.

  8. Intuitive Graphical User-Interface

    A structure is created in the graphical user interface typical for CAD programs or by using tables. Right-clicking on graphical or navigator objects activates the shortcut menu, which facilitates creating or editing such objects. The user interface is operated intuitively. Therefore the model and loading objects can be created in a minimal amount of time.

  9. CONCRETE | Input

    After opening the program, you can define the standard and method according to which the design is performed. The ultimate and the serviceability limit state can be designed according to the linear and the nonlinear calculation method. Load cases, load combinations or result combinations are assigned to different calculation types then. In other input windows, you can define materials and cross‑sections. In addition, it is possible to assign parameters for creep and shrinkage. Creep and shrinkage coefficients are directly adjusted, depending on the age of the concrete.

    Support geometry is determined by means of design‑relevant data such as support widths and types (direct, monolithic, end, or intermediate support), redistribution of moments as well as shear force and moment reduction. CONCRETE recognizes the support types from the RSTAB model automatically.

    A segmented window includes the specific reinforcement data such as diameters, the concrete cover and curtailment type of reinforcements, number of layers, cutting ability of links and the anchorage type. In the case of the fire resistance design, it is necessary to define the fire resistance class, the fire‑related material properties as well as the cross-section side exposed to fire. Members and sets of members can be summarized in special "reinforcement groups", each defined by different design parameters.

    You can adjust the limit value of the maximum crack width in the case of crack width analysis. The geometry of tapers is to be determined additionally for the reinforcement.

  10. Cross-Section and Metarial Including Favorites

    Extensive cross‑section and material libraries facilitate modeling of plate and beam structures. These libraries can be filtered and extended by user‑defined entries. It is possible to import and analyze special cross‑sections from SHAPE‑THIN and SHAPE‑MASSIVE.

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Contact our free e-mail, chat, or forum support or find various suggested solutions and useful tips on our FAQ page.

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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.

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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.