The total length of the bridge is 35.66 kilometers, and the average width of the deck is 3 1.5 meters (the carriageway is 30 meters wide). The whole line adopts the standard design of two-way six-lane expressway.
At that time, the bridge was the largest modern super-large bridge project in China with the highest construction standard, the largest investment, the most complex technology and the highest technical content, and it was the first composite bridge combining rigidity and flexibility in China.
work progress
Runyang Yangtze River Bridge, namely Zhenjiang-Yangzhou Yangtze River Highway Bridge, started construction on June 20, 2000.
On the morning of April 17, 2004, 10: 18, the last steel box girder of the south branch suspension bridge of Runyang Yangtze River Highway Bridge was slowly hoisted in place in the sound of firecrackers, announcing the closure of Runyang Yangtze River Highway Bridge, marking the overall completion of the main project of the bridge.
Runyang Yangtze River Highway Bridge starts from Zhenjiang 3 12 National Highway and Shanghai-Nanjing Expressway in the south, crosses the Yangtze River across the world and connects with Yangzhou South Ring Road in the north, with a total length of 35.66 kilometers. The Nancha Bridge connecting Zhenjiang and Shiyezhou Island is a single-hole and double-hinged steel box girder suspended cable structure. The steel box structure is flat and streamlined, with a height of 3 meters and a width of 38.3 meters, with a total of 93 beams. Compared with Jiangyin Yangtze River Bridge, which has the largest span at present, it is 1 15m, and it is the "first in China and the third in the world" long-span suspension bridge at present. The North Branch Bridge connecting Shiyezhou Island and Yangzhou is a high tower cable-stayed structure, and the steel box girder was completed on June 3, 2003.
The bridge connects the islands across the river, starting from Zhenjiang in the south and connecting Yangzhou in the north, with a total length of 35.66 kilometers. The main line adopts the standard of two-way six-lane expressway with a design speed of 100 km. The total investment of the project is about 5.3 billion yuan and the construction period is 5 years. It was completed and opened to traffic on April 30, 2005.
Runyang Yangtze River Highway Bridge has absorbed the essence of many bridges on the Yangtze River. It is the perfect combination of Jiangyin Yangtze River Bridge and Nanjing Second Yangtze River Bridge, and its design and construction have reached the international leading level.
After 42 months of construction, the bridge has completed an investment of more than 4 billion yuan. At present, the north branch bridge and the north-south approach bridge have been completed. From April 25, the main cable on the river surface entered the winding stage. After that, engineers and technicians will dehumidify and vacuum the two main cables like Yinlong, and the traffic, landscape and housing construction projects of the bridge have been fully started. With the completion of the closure of the Nancha Bridge, the deck will be rolled out and will be completed and opened to traffic.
Runyang Yangtze River Highway Bridge, a national key project, is the fourth river-crossing bridge in Jiangsu Province after Nanjing Yangtze River Bridge, Jiangyin Yangtze River Bridge and Nanjing Yangtze River Bridge II. At present, there are 10 navigation channels on the river surface of Jiangsu section of the Yangtze River for more than 400 kilometers, with an average of 40 kilometers. Nanjing Yangtze River Bridge, Second Bridge, Tunnel, Third Bridge, Fourth Bridge, Runyang Bridge, Taizhou Bridge, Jiangyin Bridge, Sutong Bridge, Chongqi Bridge and other highways cross the river 10. In the future, by 2020, Jiangsu Province will plan to cross the river for an average of 20 kilometers, which will further alleviate the problem of crossing the river.
bridgework
Runyang Yangtze River Bridge is about 60 kilometers west of Nanjing Second Yangtze River Bridge and about 1 10 kilometers east of Jiangyin Bridge.
Runyang Yangtze River Bridge, with a total length of 35.66 kilometers, consists of north connecting line, north branch bridge, Shiyezhou overpass viaduct, south branch bridge, south connecting line and extension line. The main bridge (including North Branch Bridge, Shiyezhou Interchange Viaduct and South Branch Bridge) is 7.2 1 km long, and the north approach bridge and the north connecting viaduct are 650 km long. Among them, Nancha main bridge adopts a single-hole double-hinged steel box girder suspension bridge with a main span of 1.490 meters, which is the second in China and the fourth in the world at present. The maximum net navigable width under the bridge is 700 meters, and the maximum net navigable height is 50 meters, which can dock 50,000-ton Panamanian cargo ships.
The project is mainly composed of Nancha suspension bridge and Beicha cable-stayed bridge. The main bridge of Nancha Bridge is a steel box girder suspension bridge with a tower height of 209.9m, two main cables, a diameter of 0.868m and a span arrangement of 470 m+1490 m+470 m; Beicha Bridge is a steel box girder cable-stayed bridge with twin towers and double cable planes, with span arrangement of175.4m+406m+175.4m, inverted Y-shaped pylon height 146.9m, steel strand stay cables and steel box girder deck width.
level
The main span of this bridge is 1385m, which is longer than Jiangyin Yangtze River Bridge 105m.
Bridge construction has created a number of domestic firsts, which fully embodies the highest level of highway bridge construction in China.
Runyang Yangtze River Bridge ranks first in the country: the south branch suspension bridge of the bridge has a main span of 1.490 m, making it the third longest-span suspension bridge in the country (it was surpassed by Zhejiang Zhoushan Xihoumen Bridge in 2009 with a main span of 1.650 m); The main tower of suspension bridge is 227.2 1 m, which is the tallest tower in China. The main cable of suspension bridge is 2600 meters long, which is the longest cable in China. The total weight of the steel box girder of the bridge is 34,000 tons, ranking first in China. The steel bridge deck pavement area is 7 1.400 square meters, which is the largest steel bridge deck pavement in China. The anchorage of suspension bridge has nearly 60,000 cubic meters of concrete, which is the largest anchorage in China.
Important significance
Runyang Yangtze River Bridge, located on Liyang Expressway, connects Beijing-Shanghai Expressway, Nanjing-Shanghai Expressway and Nanjing-Hangzhou Expressway, and connects these three expressways with National Highway 3 12, Tongsan Highway trunk line and Shanghai-Chengdu National Highway trunk line, becoming another important road network hub in the Yangtze River Delta region.
Runyang Yangtze River Highway Bridge Landscape Project is a world-class bridge cultural tourist attraction with a total investment of 480 million yuan, most of which is in Zhenjiang. This unique advantage, combined with the famous landscape of Zhenjiang's historical and cultural city, has made a qualitative leap in Zhenjiang's tourism resources and brought great development opportunities to Zhenjiang's tourism industry. Runyang Bridge not only ended the history of Yangzhou and Zhenjiang, two historical and cultural cities facing each other across the river, but also made positive contributions to improving the level of bridge construction in China and accelerating the transformation from a "bridge power" to a "bridge power".
Runyang Yangtze River Highway Bridge, a national key project, is the backbone of "four verticals, four horizontals and four crossings" highway in Jiangsu Province and an important part of highway passage planning across the Yangtze River. It is connected to Tongjiang, Heilongjiang, Sanya, Hainan and Beijing-Shanghai National Highway (Yihuaijiang Expressway) in the north and Hurong National Highway (Hu Rong Expressway) in the south.
The completion of Runyang Bridge is of great significance to improve the national and provincial highway network structure, improve the traffic conditions of Zhenjiang and Yangzhou, strengthen the economic and cultural ties between the two cities, promote the economic development along the Yangtze River, and accelerate the implementation of the development strategy of the Yangtze River Delta Economic Belt led by Shanghai Pudong.
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