Suspended or curved?! Sydney’s Award-Winning Skytrain Bridge
“Nothing like this has ever been seen in Australia before: a cable-stayed bridge, built into a curve, where a fully automated train will run.”
Sydney’s Skytrain Bridge, initially received with a mix of enthusiasm and skepticism by the local press, would later receive a string of awards, ending with “Project of the Year” for 2018 from influential U.S. trade magazine Engineering-News Record (ENR) soon after its completion by Webuild.
Belonging to the Sydney Metro Northwest line, the last one to be opened by the city, the 270-metre curved, cable-stayed bridge is part of the 4.6-kilometre viaduct also built by the Group. It includes two stations elevated above ground. The bridge is held up by two towers 40 metres high, each having 16 suspension cables. It is made up of 88 concrete segments, or girders, each weighing between 70 and 140 tonnes. The cranes used to set the segments in place were a surprise for the country: 150 metres long, they weighed 600 tonnes.
The girders were made of a concrete mix formulated by Webuild to reduce CO2 emissions during their production. In total, the cranes installed more than 1,200 prefabricated sections of every type. More than 4,000 people worked on this part of the line.
Fotonotizia 18 Skytraine Bridge Sydney