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After importing a .stp file, there is a free node near each member. Why are these nodes created?

Answer

The trigger for this is due to the member rotation of a member. A member rotation can be defined in RFEM and RSTAB using two options:

  • Option 1: Rotation via angle
  • Option 2: Rotation via help node

These options can be specified in the detail settings for the import of the .stp file. If the function shown in Figure 02 is activated, the first option with the angle is used. If you deactivate this function, a help node is created automatically with which the member rotation is defined.

Keywords

Free nodes Member rotation Angle Help node

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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
RSTAB Main Program
RSTAB 8.xx

Main Program

The structural engineering software for design of frame, beam and truss structures, performing linear and nonlinear calculations of internal forces, deformations, and support reactions

Price of First License
2,550.00 USD