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  1. Figure 05 - Overview

    Working with the Project Manager

    The Project Manager is installed by default when installing RFEM and RSTAB and manages all projects and calculation files. In the Project Manager, you can link different projects to have a clear overview of the program files.

  2. Figure 01 - Cross-Section

    Stiffened Buckling Panels According to EN 1993-1-5, Section 4.5

    In SHAPE-THIN, it is possible to perform the calculation of stiffened buckling panels according to Section 4.5 of EN 1993-1-5. For stiffened buckling panels, the effective surfaces due to local buckling of the single panels in the plate and in the stiffeners as well as the effective surfaces from the entire panel buckling of the stiffened entire panel have to be considered.
  3. [Edit Parameters] Button in Table Toolbar

    Creating Parametric Cross-Section

    The stand-alone program SHAPE‑THIN determines characteristic values and stresses of any thin‑walled cross‑sections. Graphic tools and features allow for modelling complex cross‑section shapes. In addition to the graphical input, it is also possible to enter the data in tables. As an alternative, you can import a DXF file and use it as a basis for further modelling. Also, each cross‑section can be entered using the cross‑section library of Dlubal Software and combined as a part with the user-defined elements.

  4. Result Diagrams of Gross Cross-Section

    Redistributing Shear Stresses from Null Elements

    SHAPE-THIN allows you to calculate section properties and stresses of any cross‑sections. If a flange or a web is weakened by bolt holes, you can consider this by using null elements. The stresses are subsequently recalculated with the reduced cross‑section values. In this case, it is necessary to pay special attention to shear stresses. By default, these are set to zero in the area of the null elements. When recalculating shear stresses with the reduced cross‑section values and without further adaptation, it turns out that the integral of the shear stresses is no longer equal to the applied shear force. The following example shows in detail how to calculate the shear stress.

  5. Throat Thickness a of Fillet Weld (a) and Deep Penetration Fillet Weld (b)

    Design of Fillet Welds According to EN 1993-1-8

    A fillet weld is the most common weld type in steel building construction. According to EN 1993‑1‑8, 4.3.2.1 (1) [1], fillet welds may be used for connecting structural parts where the fusion faces form an angle between 60° and 120°.

  6. System

    Stiffening of Structures

    Buildings must be designed and dimensioned in such a way that both vertical and horizontal loads are conducted safely and without large deformations in the building. Examples of horizontal loads are wind, unintentional inclination, earthquakes, or a blast.

  7. Curved Cross-Section Parts in SHAPE-THIN

    Curved Cross-Section Parts

    In addition to arcs and circles, SHAPE‑THIN 8.xx allows you to model the following curved cross‑section parts.

  8. Cross-Section Information of Section Areas

    Cross-Section Information of Section Areas

    The cross‑section properties software SHAPE‑THIN provides the option to combine the cross‑section parts in a “section” and display the cross‑section properties. Thus, it is possible to determine the values of the individual components in a composite cross‑section.

  9. Modeling Corners in SHAPE-THIN

    Modeling Corners

    The cross‑section properties software SHAPE‑THIN allows you to model corners of cross‑sections in full detail.

  10. 3 - Input in SHAPE-THIN

    Calculation of Shear Area in SHAPE-THIN

    Design of cross-sections usually requires many different cross-section properties. In RFEM and RSTAB, all required properties of standardized cross-sections are available in the cross-section library and can be used directly for the calculation. If the cross-sections are not standardized, SHAPE-THIN allows you to use these cross-sections, too. You can simply enter the geometry to determine all required cross-section properties. The following example shows the calculation of a shear area on a practical example.

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Knowledge Base

In addition to our technical support (e.g. via chat), you’ll find resources on our website that may help you with your design using Dlubal Software.

First Steps

First steps

We provide hints and tips to help you get started with the main programs RFEM and RSTAB.

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