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  1. 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.

  2. Figure 01 - Format Conversion Factor, KF, when Designing per the 2018 NDS and LRFD in RF-LAMINATE

    2018 NDS Updates for Cross-Laminated Timber Design

    The American Wood Council (AWC) has released the 2018 Edition of the National Design Specification (NDS) for Wood Construction. This is the second edition of the NDS to contain a chapter dedicated to cross-laminated timber (CLT) design. Therefore, a couple of revisions were included in the 2018 NDS when compared to the previous 2015 Edition.
  3. Local Effects Relating to Load Introduction

    Stability Analysis of Two-Dimensional Structural Components on Example of Cross-Laminated Timber Wall 3

    This article explains the alternative to the equivalent member method. It offers the option to determine internal forces of the wall susceptible to buckling according to the second-order analysis considering the imperfections and to subsequently perform the cross-section design for bending and compression.

  4. Figure 01 - Cross-Laminated Timber Wall with Openings Subjected to Wall Stress

    Stability Analysis of Two-Dimensional Structural Components on Example of Cross-Laminated Timber Wall 1

    Basically, you can design structural components made of cross-laminated timber in the RF-LAMINATE add-on module. Since the design is a pure elastic stress analysis, it is necessary to additionally consider the stability issues (flexural buckling and lateral-torsional buckling).

  5. Structural Analysis of Kerto-Q

    Structural Analysis of Kerto-Q

    The library of RF‑LAMINATE now includes the product Kerto‑Q by the Metsä Wood company. All LVL panels are available, including the characteristic strength parameters.

  6. Figure 01 - Vibration Design (Source: [3])

    Vibration Design of Cross-Laminated Timber Plates

    For wide-span ceilings, the vibration design of cross‑laminated timber plates is often governing. The advantage of the lighter material of timber over concrete turns into a disadvantage because a high mass material is advantageous for a low natural frequency.

  7. Calculation of Timber-Concrete Composite Structures in RF-LAMINATE

    Calculation of Timber-Concrete Composite Structures

    RF-LAMINATE allows free definition of materials. Thus, you can combine any compositions of different material. The combination of concrete and timber is possible as well. However, the rigid composite must be provided when defining such a composition. In RF‑LAMINATE, you can consider full shear coupling or no shear coupling at all.

  8. Design of Curved Chair in RF-LAMINATE

    Design of Curved Chair

    In RF‑LAMINATE, it is possible to design also curved quadrangular surfaces. In the example in the figure, the cross‑laminated timber layers of a chair are designed.

  9. Design of Carbon Frame in RF-LAMINATE

    Design of Carbon Frame

    RF-LAMINATE is an excellent tool for the design of carbon fibers. You can define the anisotropic material behavior of carbon fibers directly in a multi‑layer structure in the module.

  10. User-Defined Colors and Textures for Layer Compositions in RF-LAMINATE

    User-Defined Colors and Textures for Layer Compositions

    To better distinguish the different layer compositions, e.g. for walls and ceilings, you can assign user‑defined colors and textures to each composition.

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