What is the fastest way to model trapezoidal sheets by means of surfaces in RFEM?

Answer

Trapezoidal sheets are already available in the cross-section library of RFEM. These cross-sections are primarily used for stabilization measures in the RF‑/STEEL EC3 add-on module and as a template for modeling surfaces. Therefore, the design as a member is not possible.

The easiest way is to model the trapezoidal sheet as a member first. Then, this member can be converted into surfaces automatically (see Figure 01). Thus, you obtain the geometry as a surface model. It is also possible to create curved trapezoidal sheets. If you split a curved member into surfaces, it is created by using straight segments. If you still want to use curved lines, you can simply rotate the boundary lines accordingly. The exact procedure is shown in the video.

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Trapezoidal sheet

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RFEM Main Program
RFEM 5.xx

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Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements

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