Third Nanjing Yangtze River Bridge

Third Nanjing-Yangtze Bridge ; 南京长江第三大桥
use	Road bridge for the Shanghai – Chengdu motorway Nanjing ring motorway; ;
Crossing of	Yangtze River
place	Nanjing
construction	Cable-stayed bridge
overall length	1288 m
Longest span	648 m
Clear width	490
Clear height	24
building-costs	3.5 billion yuan ; (approx. 450 million euros )
start of building	August 2003
opening	October 2005
	location

31.96899 118.644834Coordinates: 31 ° 58 ′ 8 ″ N , 118 ° 38 ′ 41 ″ E

The Third Nanjing-Yangtze Bridge ( Chinese 南京长江第三大桥 , Pinyin Nánjīng ChángJiāng dìsāndà qiáo ) is a road bridge over the Yangtze in Nanjing , the capital of the Chinese province of Jiangsu . When it opened in 2001, the bridge was the cable-stayed bridge with the world's third largest span . Only the French Pont de Normandie and the Japanese Tatara Bridge had larger spans. For the first time in China, steel pylons were used to build a cable-stayed bridge .

history

Construction of the bridge began in May 2003 and was completed in October 2005, 22 months ahead of schedule. The client was Nanjing No. which was founded for the construction of the bridge . 3 Yangtze River Bridge Co. Ltd., which commissioned the China Railway Shanhaiguan Bridge Co. with the construction . The construction costs amounted to 3.5 billion yuan, which corresponds to around 450 million euros. It is assumed that the building will be paid off after 13.6 years.

Building

The bridge is about 300 km upstream from Shanghai , where the Yangtze River meets the East China Sea , and about 30 km above the Second Nanjing-Yangtze River Bridge . It is part of the Shanghai – Chengdu motorway and the ring road around the city with its six million inhabitants. The entire 15.6 km long river crossing of the six-lane motorway consists of the cable-stayed bridge and the connecting bridges made of in- situ concrete . The 37.2 m wide carriageway girder of the cable-stayed bridge consists of 45 prefabricated steel segments that are designed as orthotropic plates and are coated with a plastic carriageway surface. On both sides of the cable-stayed bridge are expansion joints installed, which can accommodate more than one meter stretch of the road carrier per transition. The bridge can be driven at a speed of 100 km / h.

The A- shaped, 215 m high pylons have four horizontal cross struts. They are made of reinforced concrete up to below the bridge deck , above it as a steel construction , which presented a special challenge during the construction of the bridge. Since steel has less attenuation than concrete , cable-stayed bridges with steel pylons tend to vibrate during the cantilever construction of the roadway girder , which are excited by the wind, which is why vibration absorbers were used during the construction of the pylons .

Each pylon stands on 30 bored piles , which are connected with a common cap. After the bored piles had been placed in the river bed, a dumbbell - shaped double - walled floating steel cofferdam was placed on top of them in order to create the cap with in-situ concrete.

Main dimensions of the structure

Web links

Commons : Third Nanjing Yangtze River Bridge - Collection of Images

Individual evidence

↑ ^a ^b Features and highlights of the Third Nanjing Yangtze River Bridge. Bright Oceans Corporation, accessed November 3, 2018 .
^ Design and fabrication of the tower column of Nanjing No.3 Yangtze River Bridge. May 2005, accessed November 4, 2018 .
↑ Features and highlights of the Third Nanjing Yangtze River Bridge. Bocco Group, accessed November 3, 2018 .
↑ ^a ^b Lou Xuequan, Juhani Virola, Ding Dajun: Third Nanjing Bridge - suuri vinoköysisilta rakennettu Kiinassa . In: Tierakennusmestari . No. 1 , 2008, p. 38–40 (Finnish, tierakennusmestari.com [PDF]).
↑ 3rd Nanjing Yangtze Bridge (China). Mageba, June 2018, accessed November 3, 2018 .
↑ Faxiang Xie, Limin Sun, Hongwei Huang, Hao Chen: Active Control of Cable-Stayed Bridge with Close Modes during Construction . tape 323 , 2008, ISBN 978-0-7844-0988-6 , pp. 1–11 , doi : 10.1061 / 40988 (323) 195 ( researchgate.net [accessed November 4, 2018]).
↑ ^a ^b Nanjing No. 3 Yangtze River Bridge Wins Prestigious Gustav Lindenthal Medal. Thomas Industry Update, October 24, 2007, accessed November 4, 2018 .
^ Robert B. Bittner: Float-In Cofferdams. Retrieved November 3, 2018 .

[:0-1] Features and highlights of the Third Nanjing Yangtze River Bridge. Bright Oceans Corporation, accessed November 3, 2018 .

[2] Design and fabrication of the tower column of Nanjing No.3 Yangtze River Bridge. May 2005, accessed November 4, 2018 .

[3] Features and highlights of the Third Nanjing Yangtze River Bridge. Bocco Group, accessed November 3, 2018 .

[:2-4] Lou Xuequan, Juhani Virola, Ding Dajun: Third Nanjing Bridge - suuri vinoköysisilta rakennettu Kiinassa . In: Tierakennusmestari . No. 1 , 2008, p. 38–40 (Finnish, tierakennusmestari.com [PDF]).

[5] 3rd Nanjing Yangtze Bridge (China). Mageba, June 2018, accessed November 3, 2018 .

[6] Faxiang Xie, Limin Sun, Hongwei Huang, Hao Chen: Active Control of Cable-Stayed Bridge with Close Modes during Construction . tape 323 , 2008, ISBN 978-0-7844-0988-6 , pp. 1–11 , doi : 10.1061 / 40988 (323) 195 ( researchgate.net [accessed November 4, 2018]).

[:1-7] Nanjing No. 3 Yangtze River Bridge Wins Prestigious Gustav Lindenthal Medal. Thomas Industry Update, October 24, 2007, accessed November 4, 2018 .

[8] Robert B. Bittner: Float-In Cofferdams. Retrieved November 3, 2018 .