Roofs depart and arrive at Manchester Victoria station
Starting in January Severfield-Watson Structures will be erecting 15 curved fabricated box girders to form the new roof, the longest of which will be 96m-long.
“We will be bringing the girders to site in lengths of up to 24m, welding them up into the required spans before lifting them into place using a 750t capacity crawler crane,” explains Gary Dooley, Severfield-Watson Structures Project Manager.
At one end, the girders are each connected to an 18m high 660mm diameter CHS column via a pin detail. The girders then span over the station concourse and railway lines, and curve down to a concrete buttress foundation.
Other improvements to the station include a new footbridge, refurbishments to the Grade II listed Victorian buildings and a revamp of the existing retail outlets.
The overall project is due to be completed in late 2014.