Introduction of Badong Yangtze River Bridge in Hubei Province?

Hubei Badong Yangtze River Bridge, located in the Yangtze River section of Hubei Province, is a super-large bridge across the Yangtze River by National Highway 209, about 2.5 kilometers away from Wuxiakou and 72 kilometers away from the Three Gorges Dam. The north bank of the bridge is connected to the reconstruction project of National Highway 209 (inundation reconstruction project of Three Gorges reservoir area), and the south bank is connected to Jiang Yan Road, Badong New County. The total length is 900.6m, with four lanes, 1 sidewalk, and the width of each side is 2 meters. It was officially started in April 2006, with a total investment of 5438+0, and was completed and opened to traffic on July 2, 2004, with an investment of about 300 million yuan. It is the Badong Yangtze River Bridge in Hubei Province planned by National Highway 209 and the Ministry of Communications. It is the main skeleton of Hubei province's "one ring, four verticals and two horizontals" road network design.

work progress

During the period of 1992, Badong County Transportation Bureau put forward a "bridge scheme" for the construction of the Yangtze River Bridge in view of the 209 national highway crossing the Yangtze River when formulating the reconstruction scheme of traffic facilities in Badong County in the Three Gorges reservoir area.

1March, 1996, the county planning commission and the transportation bureau drew up the construction document of Badong Yangtze River Bridge project and submitted it for examination and approval.

1998 10 June10, the Provincial Planning Commission and the Communications Department held a review meeting in Wuhan, which passed the review of the pre-feasibility study report of Badong Yangtze River Bridge. 10 In late June, it was listed as an important project of "Six Bridges and Six Roads" in Hubei Province at the Seventh National Congress of Central China, and was written into the report of the Party Congress. Enshi Prefecture listed Badong Yangtze River Bridge as a key project in the Tenth Five-Year Plan, and it was recognized by the Provincial Planning Commission and the State Planning Commission.

1June, 1998, the relevant departments of Hubei Province reported to the Ministry of Communications that the construction of Badong Yangtze River Bridge was an important part of the report.

1998 12.26, Hubei Provincial Transportation Planning and Design Institute came to Badong, buried piles at Wuxiakou, Taiji Head and Yingtao of the Yangtze River Bridge, conducted site selection and river survey, and collected relevant information in the feasibility study stage of the project. The feasibility study of the project officially began.

On February 26th, 2000, the foundation stone laying ceremony was held at 65438+ Badong Yangtze River Bridge.

200 1 April1day, the Badong Yangtze River Bridge with an investment of 320 million yuan was officially started. The bridge was designed by Hubei Provincial Traffic Planning and Design Institute, and the First Engineering Office of the Second Highway Engineering Bureau of China Luqiao Group, Sichuan Luqiao Group Co., Ltd. and Enshi Huatai Traffic Construction Co., Ltd. undertook the construction of Bid Section A and Bid Section B and ancillary works respectively.

It was completed and opened to traffic on July 2, 2004, with an investment of about 300 million yuan.

On June 5438+February 1 1 day, 2006, entrusted by the Ministry of Communications, Hubei Provincial Communications Department organized experts to hold the completion acceptance meeting of Badong Yangtze River Highway Bridge in Badong County. Experts graded the project quality and comprehensively evaluated the participating units, and determined that the comprehensive evaluation score of the construction project was 95.02, and the comprehensive evaluation grade of the construction project was excellent. It is unanimously agreed that Badong Yangtze River Highway Bridge has passed the completion acceptance.

It is also constantly being transformed in the later period.

bridgework

The total length of the bridge project is 900.6 meters. Among them, the main bridge is 728 meters long and the span arrangement is (40+130+388+130+40) meters, which is a prestressed concrete full floating system cable-stayed bridge with twin towers and double cable planes. The bridge is designed as a two-way four-car and four-lane sidewalk with12m width on both sides. The piers of the north and south main towers are 207m and 212m respectively. The main girder is prestressed concrete ribbed slab beam, with a height of 2.4m and a 2% two-way transverse slope on the top surface.

The main bridge of this bridge is a prestressed concrete beam cable-stayed bridge with twin towers and double cable planes. The bridge layout is I-shaped composite beam 4×40m+ cable-stayed bridge 170m+388m+ 170m, and the total length of the bridge is 908m. The total width of concrete main girder of cable-stayed bridge is 22m, the height of side span rib is 2.5m, the height of main span rib is 2.72m, and the roof thickness is 32cm. Type A cable tower, the height of the north tower is 2 18m, and the height of the south tower is 2 13m, with high-strength parallel steel wire stay cables.

The cable tower structure of the bridge is divided into two parts: the upper tower body and the lower tower pier. Above the elevation 173.5m, the tower body and below the tower pier. From the top of the platform to the top of the cable tower, the height of the side cable tower in Shennongxi is 212m, and that in Enshi is 212m, ranking first in Asia among similar bridges. The upper tower adopts a rhombic structure with a height of126.5 m; The lower pylon pier is a two-stage portal structure. The pylon pier at Shennongxi is 85.5 meters high and the pylon tower at Enshi is 80.5 meters high. The whole cable tower is tall and slender, with smooth appearance, which complements the majestic Wuxia exit.

Important significance

After the completion of Badong Yangtze River Bridge, the situation of national and provincial trunk lines crossing the river will be fundamentally changed, and the relocation speed of Three Gorges immigrants in Badong and other counties will be greatly accelerated. Badong Yangtze River Bridge has also become a brand-new and peculiar beauty with the famous scenic spot Wuxiakou, the international tourist resort Shennongxi and the unique man-made thousand-step trapezoid. Whenever the long river wind blows over your cheeks, it will make people linger. It also facilitates the exchanges between the people on both sides of the strait.

Badong Yangtze River Highway Bridge was laid on February 26th, 2000, and was completed and opened to traffic on July 26th, 2004. It is the first large-scale reinforced concrete twin-tower cable-stayed bridge across the Yangtze River in Hubei Province. With the cancellation of bridge toll, it will further change the status quo of Badong National Highway 209 and promote the rapid economic development along the route.

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