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  1. Load Transfer with Intermediate Ceiling

    Determining the Contact Force Between Two Inclined Objects

    This article describes how to determine the contact force between two objects behaving like walls that are inclined at a certain angle on top of each other. To determine this contact force, define a nodal release. Since a nodal release requires certain conditions, this article shows two examples.

  2. Options for Modeling Bored Piles

    RFEM and RSTAB offer different options to model bored piles. One option is to display bored piles as single-valued supports or hinged columns. Another option is the realistic modeling while taking into account the soil by means of applying a member elastic foundation. The two following examples will describe it in detail. However, pile base resistance, skin friction and soil layers are not considered in this technical article.

  3. Figure 01 - Original Structure

    Consideration of Possible Contact Between Overlapping Members

    From time to time it happens that two intersecting beams overlap at a short distance.
  4. Figure 01 - Structure and Loading

    Modelling and Design of Pinned End Plate Connection

    RFEM offers the following possibilities to design a pinned end plate connection. Firstly, there is the possibility in RF-JOINTS Steel - Pinned to enter the corresponding parameters quickly and easily to receive a documented analysis including graphics. It is also possible to model such a connection individually in RFEM and then to evaluate or manually design the results. In the following example, the particularities of this modelling will be explained and the shear forces of the bolts will be compared to the corresponding results from RF-JOINTS Steel - Pinned.
  5. Modelling Options for Composite Cross-Sections

    In RFEM, there are different options to model composite cross‑sections. In the following example, three different modelling options for a composite cross‑section, consisting of a rolled steel section HEA 300 and a rectangular cross‑section made of concrete w/l = 100/30 cm will be displayed and explained.

  6. DXF Export of Connection Geometry of RF-/JOINTS

    DXF Export of Connection Geometry

    Since the last update of RFEM/RSTAB, you can export the entire connection geometry in the DXF file format from RF‑/JOINTS. This is possible for all connection groups, both steel and timber. You can start the export in the “Results - Graphic” window by clicking the new button below the graphics window.

  7. 1 - System and Loading

    Design of Tapered Single-Span Beam According to Eurocode 3

    The following article describes the design of a single‑span beam subjected to bending and compression, which is performed according to EN 1993‑1‑1 in the RF‑/STEEL EC3 add‑on module. Since the beam is modelled with a tapered cross‑section, thus not a uniform structural component, the design must be performed either according to General Method in compliance with Chap. 6.3.4 of EN 1993‑1‑1, or according to the second‑order analysis.

  8. Comparison of Plastic Design (Shell Model) and Nonlinear Member Model

    The following example presents a comparison between a shell model and a simple member model performed in RFEM. In the case of the shell model, a beam is suspended within surfaces and modelled with restraints on both sides due to the boundary conditions. This is a statically indeterminate system that will form plastic hinges when overloaded. The comparison is carried out on a member model, which has the same boundary conditions as the shell model.

  9. Download Trial Version

    To test the program before purchasing an RFEM or RSTAB license, you can download the free 90 day trial version. This will allow you to test the full version of the program without any limitations.

  10. Download Trial Version

    To test the program before purchasing an RFEM or RSTAB license, you can download the free 90 day trial version. This will allow you to test the full version of the program without any limitations.

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