2-14 Wakefield Street Seismic Strengthening

Freyssinet New Zealand delivered an innovative global beam-column joint (BCJ) strengthening solution for a high-rise in Auckland’s CBD. Using retrofitted 1R15 anchors and post-tensioning between Levels 10–15, the system was installed from swing stages on the external façades, avoiding costly cranage. Column deficiencies were resolved with a locally designed CFRP rope stirrup system—fitted without removing glazing or flashings—saving time and cost. The same technique was used to strengthen joints at the top level where post-tensioning could not be applied, eliminating demolition works and setting a new benchmark for efficient seismic strengthening. This project showcases a cost-effective, state-of-the-art seismic strengthening solution that minimised disruption while delivering superior structural performance.