Jiangyin Bridge

31.949204120.267441Koordinaten: 31 ° 56 ' 57.1 "N, 120 ° 16' 2.8 " E

F1

Jinghu freeway Beijing -Shanghai

Yangtze River

The Jiangyin Bridge (Chinese江阴 长江 大桥) is a suspension bridge over the Yangtze River in Jiangsu Province in the People's Republic of China. The bridge opened in 1997, is China's first suspension bridge with a span of more than one kilometer and was the first bridge into the valley from Nanjing. The bridge is one of the ten longest suspension bridges in the world.

Technical Description

The structure with a span of 1385 m results in six lanes of Jinghu highway Beijing -Shanghai across the river. It was deliberately chosen a construction which necessitates no pillar in the middle of the riverbed. This was avoided that change the flow conditions in the river, leading to deposits or scour could have led. Moreover, this navigation is not impeded. The bridge offers under the stiffening support a clear height of 50 m, so that ships can pass up to 50,000 DWT the bridge.

The 186.8 meter high concrete pylons are very close to the river bank, so that only the section between the two pylons were designed as a suspension bridge. Reinforced concrete beam bridges serve as a bridge spans and go up to the pylons. This design of the stiffening girder of suspension bridge could easily be kept, what came to meet the difficult anchoring the suspension cable. The sandy soil of the north side made ​​a very large anchor block necessary with the dimensions 51 x 69 m at a depth of 58 m.

The support cables are made of prefabricated parallel wire cables ( PPWS ). Each suspension cable consists of 169 ropes, in turn, each consisting of 127 wires with a diameter of 5.35 mm. The road carrier is designed as aerodynamically optimized steel box girder, which is only 3 m high with a width of 36.9 m.