Friday, 7 January 2011

18 DECEMBER 2010

Despite sub-zero temperatures and heavy snow falls December marked one of the most crucial phases for the Gallery, as the 28, 30mm diameter steel cables were installed and pre-tensioned. The procedure was complex and very delicate as the pre-tensioning sequence meant applying a 60% of the maximum load following a symmetrical pattern, in order to avoid any unwanted deformation of the steel frame. Subsequently the cables were tensioned to 100% max load. It's basically like tuning the strings of a giant guitar to perfection.

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