The Huangpu River in China is the last main tributary of the Yangtze River on its way to East China Sea. Huangpu is 113 km long and crosses one of the fastest growing and significant cities in China –Shanghai. Nanpu Bridge is one of the first bridges over Huangpu that connects central Shanghai and the Pudong district on the other side of the river. The district develops fast, just like the city at all, which is one of the main reasons for building Nanpu. It is also expected that the bridge will help for continuing of this development. The bridge, accessible via impressive spiral connections, is also a link between Zhongshan South Road and Lu Jiabing Road. Except all other positives, it is also a touristic attraction and local landmark.
The local people respect Huangpu as a mother river and consider that it is the cradle of Shanghai and something like a spiritual protector of the city. But along with that, the river separates the city and makes the contact between the halves difficult. This is why Shanghai residents have been dreaming about big bridge between Pudong District and Puxi District for long time ago. Since 1920’s if we must be more accurate.
The Songpu Bridge was built in 1975 but it couldn’t solve the problem of the huge traffic around the river entirely because it is too far from the center of Shanghai. This led to the necessity of second bridge over Huangpu River. The Nanpu Bridge project was approved in August, 1986, and the construction began after two years of preparations – in 1988. Two years later the Chinese government decided to turn Pudong District into general development region, which significantly increased the importance of Nanpu Bridge.
The local people respect Huangpu as a mother river and consider that it is the cradle of Shanghai and something like a spiritual protector of the city. But along with that, the river separates the city and makes the contact between the halves difficult. This is why Shanghai residents have been dreaming about big bridge between Pudong District and Puxi District for long time ago. Since 1920’s if we must be more accurate.
The Songpu Bridge was built in 1975 but it couldn’t solve the problem of the huge traffic around the river entirely because it is too far from the center of Shanghai. This led to the necessity of second bridge over Huangpu River. The Nanpu Bridge project was approved in August, 1986, and the construction began after two years of preparations – in 1988. Two years later the Chinese government decided to turn Pudong District into general development region, which significantly increased the importance of Nanpu Bridge.
The bridge was completely built on 20th of June, 1991, and the official opening ceremony was on November 19th, the same year. After the traffic opening on December 1st, 1991, Nanpu Bridge became the fourth largest cable-supported bridge in the world.
The design of Nanpu belongs to two institutions: Shanghai Municipal Engineering Design Institute, and Tongji Architectural Design and Research Institute. Funding was provided mainly by Asian Development Bank. Its overall cost was 820 million Chinese yuans and became excellent base for the following building of two other bridges: Yangpu and Xupu.
Nanpu Bridge is 8346 m long, but the biggest part of this longitude belongs to its elevated spiral approaches – 7500 m, and the main part across the river is 846 m long. It stands roughly 46 meters above the water level which allows for passing of no more than 55 tons heavy ships.
The design of Nanpu belongs to two institutions: Shanghai Municipal Engineering Design Institute, and Tongji Architectural Design and Research Institute. Funding was provided mainly by Asian Development Bank. Its overall cost was 820 million Chinese yuans and became excellent base for the following building of two other bridges: Yangpu and Xupu.
Nanpu Bridge is 8346 m long, but the biggest part of this longitude belongs to its elevated spiral approaches – 7500 m, and the main part across the river is 846 m long. It stands roughly 46 meters above the water level which allows for passing of no more than 55 tons heavy ships.
The bridge is supported by two main H-shaped, 150 m tall towers and double cable planes. The body of the bridge was constructed by using steel and concrete. The lower layer of deck is created by utilizing a large “beam” frame while the upper layer is reinforced with concrete. The bridge surface and the steel deck were electronically welded, after which the junction was reinforced with concrete. This method was used for first during building of Chinese bridges.
via: [shanghaihighlights.com]
Source:http://interestingengineering.com/
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