Following the Kaikōura Earthquake in November 2016, a 130‑year‑old, four‑storey brick building in Wellington’s CBD required major seismic strengthening to achieve 100% of the New Building Standard. As part of the redevelopment, floors and balconies were demolished and replaced with new concrete slabs, and a new lift shaft was constructed. To stabilise the perimeter brick walls—particularly at the basement level—high‑capacity tension bars were required to provide reliable seismic restraint within the heritage masonry structure.

  • Customer/Owner:
    Cequent Projects
  • Engineer
    Bluebarn Engineers
  • Works period
    November 2019 - March 2020

Freyssinet Scope

  • Installation of 46 × 11.2 m long, 32 mm diameter Freyssibars within perimeter brick walls
  • 1.2 m grouted dead‑end anchorage for each bar
  • Full stressing of all bars to required loads
  • Complete grouting of bars for structural engagement and durability
  • Installation of galvanised bearing plates and caps for long‑term corrosion protection
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