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  1. Figure 01 - Structural Reinforced Concrete Column System with Coupling Members

    Exporting Spring Stiffnesses from RF-/FOUNDATION Pro and the Influence on Column Design

    With RF-FOUNDATION Pro, it is possible to determine settlements of single foundations and resulting spring stiffnesses of the nodal supports. These spring stiffnesses can be exported into the RFEM model and used for further analyses.

  2. Figure 01 - Visualization of a BIM Model in a Viewer with the Option to Display Cross-Sections, Material and Dimensions

    The Benefits of BIM in Structural Analysis

    Building Information Modeling hits the headlines in building design. While some engineers only use BIM methods for planning, others deal with this topic for the first time or hardly have time for it in their daily working routine. However, one topic seems to be the most important in structural engineering: How can structural engineers benefit from BIM?

  3. Figure 01 - Deformations as the First Result of an FEM Calculation

    Internal Forces Diagram/Surface Stresses - Smoothing Options

    The deformations of the FE nodes are always the first result of an FE calculation. Based on these deformations and the stiffness of the elements, it is possible to calculate strains, internal forces, and stresses.

  4. Figure 01 - Structural System and Loading

    Comparing Critical Load Factors for Lateral-Torsional Buckling According to Different Methods and Modules

    The branch value for lateral-torsional buckling or the critical buckling moment of a single-span beam will be compared according to different stability analysis methods.

  5. Figure 01 - Structural System

    Nonlinear Time History Analysis Using the Example of a Tower Structure with Prestressed Cables

    There can be numerous nonlinearities in a structural system. In order to model them realistically in a dynamic analysis, the RF-DYNAM Pro - Nonlinear Time Histoey add-on module was developed. To explain how the add-on module works, the procedure is described below with an example.

  6. Figure 01 - Research Issue

    Modeling Approaches for Shear/Hole Bearing Connections by Means of FEA

    For more detailed investigations of shear/hole bearing connections or their immediate environment, the definition of the non-linear contact problem plays an important role. This article uses a solid model to search for comparable and simplified surface models.
  7. Figure 01 - Importing a DXF File as Lines

    Importing a DXF File as Basis for the Modeling

    In RFEM and RSTAB, you can import DXF files via the import function. These DXF files can be used as the basis for modeling a structural system.

  8. Application of Eccentricities in RF-CONCRETE Columns

    When calculating the internal forces for the buckling analysis with the method based on nominal curvature in RF-CONCRETE Columns, the required eccentricities have to be determined.
  9. Figure 01 - Graded Wind Load Over Different Building Heights

    Wind Depending on the Structure Height for Vertical Walls

    The wind loads are regulated according to Eurocode 1 - Actions on structures - part 1-4: General actions - Wind loads. The nationally determined parameters of a respective country can be found in the National Annexes.

  10. Figure 01 - Reinforced Concrete Section: Stress and Strain Diagram

    Reinforced Concrete Beam Design per ACI 318-14 in RFEM

    Using RF-CONCRETE Members, concrete beam design is possible according to ACI 318-14. Accurately designing concrete beam tension, compression, and shear reinforcement is important for safety considerations. The following article will confirm the reinforcement design in RF-CONCRETE Members using step-by-step analytical equations per the ACI 318-14 standard including moment strength, shear strength, and required reinforcement. The doubly reinforced concrete beam example analyzed includes shear reinforcement and will be designed under the ultimate limit state (ULS) design.

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