Moment Resisting Frame

The RSFJ-MRF is a connection that allows beam column fixed joints to deform without damage. The solution offers re-centering and does NOT require post event maintenance making it the ideal long-term solution for moment resisting frames.

It is installed within a beam section and offers near perfect plastic hinge beam behaviour.


  • /Self-centring
  • /No post event maintenance: Reduced costs when considering earthquake sequences
  • /Scalability: Can be installed in parallel to increase the capacity
  • /Arrives on site ready for install (no secondary steps required)
  • /Easy installation


New and retrofit projects, and can be implemented to all types of buildings; steel, timber, concrete, or a hybrid of any.

  • /Multi story applications
  • /Portal frames
  • /Industrial pallet racks


The dimensions of the RSFJ products mostly depend on the demand deflection. To support the application of RSFJs in a wide range of MRF sizes, the RSFJ products are provided in 2 different ranges of de sections: up to 40mm, and 40 to 80mm. The following table shows the approximate dimensions of RSFJ products.


See the RSFJ Structual Modelling Guide