New

I dimensioned a steel construction joint with RF-JOINTS and modeled it for comparison in RFEM. Why are the results not identical?

Answer

In RF-JOINTS an idealized proof of a steel construction connection according to the standard takes place, which can not be easily compared with an exact FE calculation.

Accordingly, the following conditions must be observed:

  • Consideration or exclusion of friction / pressure / tension within the contact volume (register "Contact") as well as with the modeled screws
  • Consideration of internal forces and deformations within post-modeled end plates or the like, which causes a rearrangement of the screw forces in the FE calculation (in contrast to the idealized proof in RF-JOINTS)
    Remedy can be created for example by rigid connection objects (eg front plate as a rigid surface).
  • Uniform load transfer into the FE model z. For example, with the help of rigid bars / rigid surfaces as described in the article FEM modeling approach rigid connections

Keywords

Connection Connection RF JOINTS Results

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