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  • One software package for all application areas
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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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  1. Selection of nodes along a line by means of the COM interface

    If you read out the results of a surface via the COM interface, you get a one-dimensional field with all results at the FE nodes or grid points. To get the results on the edge of a surface or along a line within the surfaces, you have to filter out the results in the area of the line. The following describes a function that can perform this task.

  2. Options for Considering Accidental Torsional Actions According to EN 1998-1

    In order to consider inaccuracies regarding the position of masses in a response spectrum analysis, the standard EN 1998-1 specifies rules which have to be applied in both the simplified and multi-modal response spectrum analysis. These rules describe the following general procedure: The story mass must be shifted by a certain eccentricity, which results in a torsional moment.

  3. Fire resistance analysis by means of a parametric temperature-time curve according to DIN EN 1991-1-2

    With RF-/STEEL EC3, nominal temperature-time curves can be used in RFEM or RSTAB. The standard time-temperature curve (ETK), the external fire curve and the hydrocarbon fire curve are implemented. Moreover, the program provides the option to directly specify the final temperature of steel.

  4. Creation of a user-defined antenna support for RF-/TOWER attachments

    In the following, the creation of a user-defined antenna support for use in RF-/MAST extensions is described in detail.

  5. Reinforcement content in RFEM (top) and Revit (bottom) after export via direct interface

    Routes from BIM model to structural engineering and back

    The calculation of structures based on digital twins is increasingly becoming an everyday task in the engineering office. For if a digital building model already exists, you want to continue to use the information contained in it as seamlessly as possible. This places far-reaching requirements with regard to modeling and interfaces for BIM-compatible structural analysis software.

  6. System, Loading, Internal Forces

    Cross-Section Design of a Column Under Axial Force and Bending

    In this technical article, a hinged column with a centrally acting axial force and a linear load that acts on the major axis is designed according to EN 1993-1-1 with the aid of the RF-/STEEL EC3 add-on module. Column head and column base are assumed as a lateral and torsional restraint. The column is not held against rotation between the supports. The cross-section of the column is an HEB 360 from S235.

  7. System overview

    Determination of snow bag for height changes on roofs according to EN 1991-1-3

    Annexes are often found on buildings. If the roof levels are not at the same depth, this elevation jump (if more than 0.5 m) must additionally be considered for the snow load assumption.

  8. Shear Deformations of Framework Structures in Timber Construction

    In current literature, the formulas to determine internal forces and deformations manually are usually specified without considering the shear deformation. Especially in timber construction, the deformations resulting from shear force are often underestimated.

  9. RFEM model

    Timber Beam Design per the 2014 CSA Standard

    Using the RF-TIMBER CSA module, timber beam design is possible according to the CSA O86-14 standard. Accurately calculating timber member bending resistance and adjustment factors is important for safety considerations and design. The following article will verify the factored bending moment resistance in the RFEM add-on module RF-TIMBER CSA using step-by-step analytical equations per the CSA O86-14 standard including the bending modification factors, factored bending moment resistance, and final design ratio.

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