Tangential Orientation of Members on Curved Members or Singly Curved Surfaces

Tips & Tricks

If you want to connect members tangentially to a curved member or a curved surface in RFEM, it is necessary to define member rotation of the connected members. In order to avoid manual determination, you can display the center point of the curved line and place a node on it. Then, you can select the ‘Member Rotation via Help node’ option and specify the relevant help nodes. Thus, the members are rotated automatically in the defined plane (x‑z in our example) and the top edge of the rotated cross-section is parallel to the tangent of the curved line.


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RFEM Main Program
RFEM 5.xx

Main Program

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

Price of First License
3,540.00 USD