60-70 St Mary Axe

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Project Description

  • Developer / Owner: TH Real Estate
  • Client/Main Contractor: Mace
  • Architect: Foggo Associates

Located on the site of a former low rise block of premium serviced offices and retail units, the new high rise construction at 60-70 St. Mary Axe (now better known as London’s Can of Ham) is now underway, with a target completion date of 2018.

Main contractor Mace awarded Morrisroe the contract to construct the 3 storey basement and the 90 meter tall concrete core structure, reaching 22 storeys above ground level. The floors of the steel-framed and clad building are also included in the contract, with a total gross floor of 41,515m².

Morrisroe is undertaking dig and construction of the 3 story basement, including the water proof secant pile walls of level 3 of the basement, which has a ground bearing floor. Levels B1 and B2 will have suspended floors. Piling on the site will provide 30 metre deep foundations for the structure. As part of the dig Morrisroe ground workers and engineers are also undertaking the construction of the concrete capping beam and propping.

To assist with the 50 week programme deadline Morrisroe is taking advantage of using some pre-cast concrete components to accelerate non critical parts of the project and to save space due to the site’s small footprint.

The 24 storey free standing concrete core of the building will be constructed using a fully cantilevered Doka slipform construction process and is the tallest free standing slipform construction of its kind to date for Morrisroe.