The Influencers Column: Albert Brantley
You may notice a change in the Christchurch skyline this month with the first of the steel trusses being placed to support the roof of the Convention Centre.
These first trusses span 50 metres and sit over the 1400-person auditorium. They give you the first real opportunity to gain some appreciation of the scale of the facility, which occupies two city blocks.
In total around 4500 tonnes of primary and secondary steel will be required for the building.
About a third of the facility’s 25000m3 of concrete has now been poured, with work on the foundation of the 3600m2 multi-use exhibition hall currently underway.
Concrete pumps have also been hard at work on the walls, which are being poured in place rather than being trucked in as the more conventional precast panels. This is because supporting the roof over these large open spaces and achieving the appropriate earthquake resilience requires walls around half a metre think. As a result, it would very difficult to truck in precast panels this thick and heavy.
A great place to watch ‘François’ the French tower crane and the German crawler crane ‘Helping Hans’ go about their work on the Convention Centre is Victoria Square. When the facility opens in 2020 it will be the other way around, with the Convention Centre’s meeting rooms on Armagh Street offering impressive views of the historic statues, garden beds and Bowker Fountain in the Square.
But for now, just keep looking up.