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The Gateway Bridge in Brisbane, Australia, opened as the largest prestressed-concrete, single-box bridge in the world.
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Sir Leo Hielscher Bridges
Bridges in Queensland, Australia
The Sir Leo Hielscher Bridges, formerly and still collectively referred to as the Gateway Bridge, are a pair of twin road bridges that carry the Gateway Motorway (M1) over the Brisbane River, skirting the eastern suburbs of the city of Brisbane. The western bridge carries…Source: Wikipedia (CC BY-SA)
Brisbane
Capital city of Queensland, Australia
Brisbane is the capital and largest city of the state of Queensland and the third-most populous city in Australia, with a population of approximately 2.8 million. Brisbane lies at the centre of South East Queensland, an urban agglomeration with a population of over 4 million.…Source: Wikipedia (CC BY-SA)
Prestressed concrete
Form of concrete used in construction
Prestressed concrete is a form of concrete used in construction. It is substantially prestressed (compressed) during production, in a manner that strengthens it against tensile forces which will exist when in service. It was patented by Eugène Freyssinet in 1928.Source: Wikipedia (CC BY-SA)
Box girder bridge
Type of bridge
A box girder bridge, or box section bridge, is a bridge in which the main beams comprise girders in the shape of a hollow box. The box girder normally comprises prestressed concrete, structural steel, or a composite of steel and reinforced concrete. The box is typically…Source: Wikipedia (CC BY-SA)