RSFJ advantages
Conventional seismic solutions were based on “high-damage” concepts; i.e. dissipating seismic energy within the entire structure which ultimately experiences a significant level of damage.

Second generation seismic solutions developed in recent decades have produced the development of “low-damage” concepts where the damage is controlled and limited to replaceable fuses or joints in the structure, which, while lowering the overall structural damage does not allow immediate reentry. This is due to the frequency of aftershocks and often results in significant repair costs (usually at a high cost).

The innovative RSFJ technology represents a third generation solution based on “damage- avoidance” concept. With its maintenance-free design, the RSFJ provides a cost effective and game-changing technology with unlimited potential and benefits.
  1. Effective dissipation of energy
    Significantly reducing the seismic load through friction damping and thus improving structural resilience.
  2. Retrofit applicable
    Due to the ease of connection to existing structural members, the RSFJ can be part of any building retrofit project.
  3. Self-centering capacity
    Restoring the structure to its designed position after any seismic event.
  4. Applicable to all building materials
    Can be implemented in any structure and can form part of any Lateral Load Resisting System (LLRS), connected to steel, timber or concrete structural members.
  5. Continued damage avoidance
    Following a seismic event, the RSFJ is ready for any aftershocks that may occur and will remain fully available throughout the lifetime of the structure.
  6. Compact size
    The RSFJ is smaller than many comparable seismic connectors with the same load characteristics.
  7. Maintenance free
    No element of the RSFJ requires periodic service or post event maintenance.
  8. High initial stiffness
    Resistant to wind loads and limiting the drift of structures under seismic events within the serviceable design loads.
  1. Easy implementation in SAP2000
    In SAP2000 the RSFJ load displacement behaviour can be easily modeled (by choosing the Damper-Friction spring type element) accurately representing the cyclic behaviour of the joint.
  2. Simple installation
    With implementation as simple as traditional bolted steel plate connections, the RSFJ requires no specialist skills to install. None of the RSFJ components need to be adjusted by the installer.
  3. Cost-effective
    The RSFJ is cost effective to implement and is maintenance-free; eliminating the expensive post-event maintenance and replacement costs required in other technologies.
  4. Structural health monitoring
    When used with a displacement sensor, the RSFJ may be installed in an instrumented configuration where displacement monitoring provides high precision measurement of seismic forces in structural element - providing safe remote structure diagnosis even after extreme earthquake events.
  5. Scalable
    The connector is fully scalable and may be custom designed to a variety of structural requirements with applications ranging from storage units to high rise structures.