The 1,550t, 100m tall steel and concrete main pylon which will support the deck on the New Wear Crossing is being erected in one 24 hour lift today (Friday).
The pylon is the main tower for the new £117.6M cable stayed River Wear crossing in Sunderland.
Each leg of the A-shaped structure is typically 3m by 5m in cross section and is a steel hollow tube with a steel composite structure at the bottom of each leg made up of 20m in height of reinforced concrete. When in place, the pylon will sit on 8m high reinforced concrete foundation ‘tusks’, which have been built in cofferdams in the river.
The pylon was fabricated in Belgium. At the site, its feet will be attached via hinges to the tusks and then raised using a mix of tried and tested lifting methods and technologies, said Farrans Victor Buyck Joint Venture (FVB) project director Stephen McCaffrey.
Read the full technical insight into the operaton in an interview McCaffrey gave to New Civil Engineer.