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  1. Figure 01 - Timber Panel Construction

    Calculating Timber Panel Walls | 1. Determining the Ultimate Limit State and Stiffness

    The stiffening of timber structures is usually carried out by means of timber panels. For this purpose, structural components consisting of slabs (chipboards, OSB) are connected with members. Several articles will describe the basics of this construction method and the calculation in the RFEM program. This first article describes the basic determination of the stiffnesses as well as the calculation.

  2. 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.

  3. 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.
  4. Figure 01 - Influence of the Load Duration on the Design Value of the Strength

    Load Combinations in Timber Structures for European and American Timber Standards

    In addition to determine loads, there are some particularities concerning the load combinatorics in timber design which have to be considered. Contrary to steel structures where the largest loading results from all unfavorable actions, in timber construction, the strength values are dependent on the load duration and the timber humidity. Special characteristics have to be considered as well for the serviceability limit state design. The following article discusses the effects on the design of wooden elements and how this is possible with RSTAB and RFEM.

  5. Figure 01 - Adjusted Value Range

    Documenting Graphical Results of Reinforcement in RF-CONCRETE Surfaces

    RFEM offers different options to display results graphically which have been determined in RF-CONCRETE Surfaces. This article gives an overview of these options.
  6. Figure 01 - Real Model and Structural System

    Considering End Releases Between Surfaces

    This paper explains the consideration of compliance between surfaces using line joints and line releases. Line joints and line shares take into account compliances between areas. Examples of this are joints in reinforced concrete construction or corner joints in cross-laminated timber construction.
  7. Figure 01 - Hall Frame as Basis for Surface Model

    Modeling Joints as Surface Model

    With RF-/FRAME-JOINT Pro, it is possible to design frame joints according to DIN 18800 or Eurocode 3. When considering non-standardized joints or taking a closer look at the joint and its behavior, it is recommended to use a modeling as surface model. The following article will show how such a model is created in principle.
  8. Figure 01 - Model with FE Mesh

    Modeling and Bending Design of Point-Supported Flat Slab

    This article describes how a flat slab is generated as 2D model in RFEM and the loading is applied according to Eurocode 1.
  9. Structural System and Cross-Section Dimension According to [1]

    Modeling of Semi-Rigid Composite Beam Made of Timber as Surface Model

    There are several options to calculate a semi-rigid composite beam. They differ primarily in the type of modeling. Whereas the Gamma method ensures a simple modeling, additional efforts are required when using other methods (e.g. shear analogy) for the modeling which are, however, offset by the much more flexible application compared to the Gamma method.
  10. 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.

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