Our Seismic Retrofitting Solutions
Seismic retrofit solutions are selected based on the required performance outcome, existing structural behaviour, and project constraints. Freyssinet New Zealand applies a range of strengthening and response-control approaches to reduce seismic demand, improve ductility, and enhance overall structural resilience.
Introducing post-tensioning into an existing structure is an effective way to improve seismic performance by applying controlled compressive forces.
This approach redistributes stresses, limits cracking, and reduces displacement under earthquake loading, enhancing overall structural behaviour without requiring major modification to existing elements.
Advanced composite systems, including carbon fibre reinforced polymers (CFRP), are used to strengthen structural elements and improve seismic performance.
These lightweight, high-strength materials increase capacity and ductility while minimising additional mass and impact on the existing structure.
Seismic isolation and energy dissipation systems are used to control structural response during earthquake events.
By reducing the transfer of seismic forces and dissipating energy, these systems limit damage, improve safety, and enhance the resilience of both structural and non-structural elements.