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  1. Figure 01 - Research Issue

    Modelling 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.
  2. Determination of Wind Loads for Canopy Roof Structures According to EN 1991-1-4

    If a canopy roof, for example a filling station roof, should be designed, a load determination having regard to Section 7.3 of EN 1991-1-4 is required. This article shows with an example the design of a slightly inclined troughed roof.
  3. Figure 01 - Calculation example

    FEM Modeling Approaches of Rigid Connections

    Especially when the adjacent area of connection points should be analyzed, the geometry or load of the connection does not correspond to the standard specifications and/or a structure should be analyzed with an FE model (for example in plant engineering), it is necessary to evaluate the connections in detail on the FE model.
  4. Calculation Example of Rigid End Plate Connection According to EN 1993-1-8

    In this example, design resistance of an end plate according to EN 1993-1-8 [1] is to be determined; the other components are not described here. To check the results, the dimensions of the connection IH 3.1 B 30 24 of Typified Connections [2] were used. The material S 235 and bolts with the strength 10.9 are used.

  5. Figure 01 - Frame Joint in RF-/FRAME-JOINT Pro

    Analysis of Load-Bearing Capacity of Bolted Frame Joints According to EC 3-1-8

    When designing bending-resistant connections from I-beams, the connection is dissolved into the individual parts. For these basic components of a joint, there are separate formula calculators for load-bearing capacity and stiffness. In RFEM and RSTAB, it is possible to design frame joints using the RF-/FRAME-JOINT Pro add-on module.

  6. Figure 01 - Support Reactions

    Preventing Singularities on Nodal and Line Supports of Plate Structures

    Boundary conditions of a plate support can be quickly entered as singular and line supports in the FEA software. However, if the flexibility of the supports is not considered when modelling the structure, it is often necessary to take a closer look at the support definitions during the design using stresses or the determination of the required reinforcement at the latest.

  7. Figure 01 - Eccentricities

    Considering Member and Surface Eccentricities

    In the case of a parallel offset of the structural plane of members and surfaces, or in the case of applying an axial offset to members, the function of eccentricities may be useful.

  8. Cylindrical Coordinate System

    Cylindrical Coordinate System

    Rotation-symmetric structures or structural components are frequently entered in the Cartesian coordinate system. For example, subsequently changing the radius requires some effort as the coordinates should be recalculated first and then updated for each node.

  9. Arrangement of Project Navigator, Table and Panel

    Arrangement of Project Navigator, Table and Panel

    In order to use the working window area for graphical input of model data or for result evaluation in an optimum way, there are various options for arranging the Project Navigator, the table and the result panel.

  10. Converting Old Intersections in RFEM 5

    Converting Old Intersections

    If intersections created in RFEM 4 are opened in an RFEM 5 file, the file management of intersections remains in the old format for compatibility reasons. Thus, the individual partial surfaces of the intersection can be activated or deactivated by using only the ‘Integrated/Components’ tab, all partial surfaces can have only the same thickness, and it is not possible to use the separate FE mesh refinement for the individual surface components.

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