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Tsing Ma Bridge - Hong King Harbour
The Tsing Ma Bridge carries two three-lane carriageways on top of another twin lane carriageway next to a twin track railway line. These span over the Ma Wan Channel in Hong Kong Harbour to connect the new international airport at Chep Lap Kok to the centre of Hong Kong.
At 202km long with a 1,377m main span it is the world's longest suspension bridge carrying both road and rail traffic
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Tsing Ma Bridge - clamping the Cable Bands
This photograph shows one of the Goodwin cable bands being clamped to one of the 1.1m diameter suspension cables.
The total length of wire that makes up the 2.2km of 1.1m diameter suspension cables is 160,000km, enough to circle the earth 4 times. The weight of the cable steel is about 28,000 tons
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Tsing Ma Bridge - release of castings
Final release of castings following ultrasonic and magnetic particle non-destructive testing prior to machining.
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Tsing Ma Bridge - dimensional inspection
Cable band casting undergoing dimensional inspection - a great deal of care had to be paid to the casting method design to keep any distortion during the casting and processing within acceptable limits.
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Jiangyin Bridge - Yangtze River, China
The Jiangyin Yangtze River Highway Crossing consists of a long span six-lane suspension bridge. The main span of the bridge is 1,385m, making it the fourth longest in the world.
The bridge is the only fixed crossing of the Yangtze river between Shanghai and Nanjing and is an integral part of the new north-south highway. The bridge was opened by the Chinese leader President Jiang Zemin on 1 October 1999, to celebrate the 50th anniversary of the founding of the People's Republic of China by Chairman Mao.
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Jiangyin Bridge - cable band inspection
A 12-bolt, 1,800mm cable band assembly undergoing dimensional inspection prior to packing. |
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Jiangyin Bridge - machining
4-bolt, 500mm cable bands being machined on a Toshiba 110R16 CNC horizontal boring machining centre at Goodwin.
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Jiangyin Bridge - coating
Corrosion protection of cable bands is vital to the long-term life of a suspension bridge.
Metal spraying with zinc is followed by further protection from sea water corrosion with a multicoat two-pack epoxy resin paint system.
Both metal spraying and painting is carried out at the Goodwin facility.
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