Posted on Nov 20, 2008 under Steel Structures |
The Runyang Bridge or Rùnyáng Chángjiāng Dàqiáo crosses the Yangtze River in Jiangsu Province, China.
The bridge consist of two major bridges that link Tangzhou on the north of the river and Zhenjiang on the South. The bridge is part of the Beijing-Shanghai Expressway.
The south bridge is a suspension bridge with a span of 4888 ft it is the 3rd longest suspension bridge in the world, and the longest in China up untill 2007 when the Xihoumen Bridge was opened and made it the 2nd longest in china and 4th in the world.
The main span of the bridge consists of a streamlined orthotropic steel box girder that is 3 metres (10 ft) in depth. The width of the deck is 39.2 metres (129 ft), accommodating 6 traffic lanes and a narrow walkway at each outside edge for maintenance. The height clearance for river navigation is about 50 metres (164 ft).
The north bridge is a cable-stayed bridge with a span of 1332 ft with towers 492 ft abover water level. In the middle of the two bridges is the island of Sivezhou. The length of the bridge is 22.16 miles. The construction of the bridge started in October 2000 and was opened to the public on April 30th, 2005 , it was opened ahead of schedule
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Posted on Nov 19, 2008 under Steel Structures |
The Hangzhou Bay Bridge is the worlds 4th longest bridge 3rd longest over water bridge and the worlds longest Trans-oceanic bridge at 22.17 miles long .
Construction on this bridge started on June 8th, 2003 and was completed on June 14th, 2007. The opening ceremony was on June 26th, 2007 even though the bridge was not officially open to the public until May 1st, 2008. This is as of this posting the longest bridge in China and was built to last at least 100 years.
Hangzhou Bay Bridge is a bridge with cable-stayed bridge portions across the Hangzhou Bay off the east coast of china. The bridge was built in an s shape so that the annual silver dragon is minimally affected. The bridge has two main spans a 1,470 ft northern span and a 1,043 ft southern span.
The bridge has 6 express lanes in two directions. The speed limit is 62 miles per hour. Orthotropic steel deck is used on its main spans and five ramp bridges, and was paved with 50 millimeters (2.0 in) epoxy asphalt concrete.
The bridge uses different colors and flashing lights to keep drivers from getting drowsy and pay attention to the road instead. Previously the trip from Ningbo to Shanghai and southern Jiangsu involved a detour of around 400 km (249 mi), the bridge reduces that distance to 80 km (50 mi), a reduction of 320 km (199 mi).
The result is that Ningbo, with its port at Beilun, will be able to compete with Shanghai’s port Pudong for international sea freight.
This is just one of the investments China has made in it’s transportation infrastructure in the past few years.
The bridge is expected to boost tourism in Ningbo. Again I do not have the figures on how much steel was used in the construction of this bridge but if you get it I will post it, and as always if you have this information feel free to comment.
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