Shanghai Yangtze River Bridge

Shanghai Yangtze River Bridge project is one of the important parts of the North Bridge of the South tunnel of Shanghai Chongming River Crossing channel. It starts from the landing point of the tunnel Changxing Island, crosses Changxing Island along the ground, from the northeast of Changxing Island to Chenjia town of Chongming Island, and connects with Chongqi passage project, with a total length of 16.63 km.

The scale of Shanghai Yangtze River Bridge is the largest in the world. With a total length of 25.5km, the Yangtze River Tunnel Bridge is composed of the world's largest diameter tunnel and the world's largest cable-stayed bridge built by highway track, which can be called the world's largest tunnel bridge combination project. At the same time, it broke the record of Japan's Tokyo Bay Highway Tunnel buried 50 meters deep, with the deepest being 55 meters underwater, and there was no leakage in the river bottom tunnel.

The shape of the main tower of the Yangtze River Bridge is different from the inverted Y shape of Yangpu Bridge, the A-shape of Xupu Bridge and the H-shape of Nanpu Bridge. It is a single tower design with a "man" shape. The straight bridge deck passes through the waist, implying the concept of harmony between man and nature. Therefore, as the "first bridge of Yangtze River gateway" in the future, the beautiful and atmospheric landscape is also one of the characteristics of Shanghai Yangtze River Bridge.

Shanghai Yangtze River Bridge

Shanghai Yangtse River Bridge is a sea crossing bridge in Chongming District of Shanghai, China. It is located at the estuary of the Yangtze River and is one of the important parts of Chongming River Crossing channel in Shanghai.

The construction of Shanghai Yangtze River Bridge started on December 28, 2004;

The closure project was completed on June 27, 2008, and the whole bridge was connected;

The whole bridge was completed on November 8, 2008;

It was put into operation on October 31, 2009.

Shanghai Yangtze River Bridge starts from Chongming Island of Shanghai in the East, crosses the Yangtze River Estuary Waterway and ends at Changxing Island in the north. The line is 16.63 km long and the main bridge is 9.97 km long. The bridge deck is a two-way six lane Expressway with a design speed of 100 km / h.

Construction process

In 1993, the Shanghai Municipal People's Government studied the feasibility scheme of "Chongming River Crossing Project" and put forward some ideas.

In 1994, the Shanghai Municipal People's government completed the Preliminary Research Report on major technical issues of the Yangtze River Estuary crossing channel project.

In 2001, Shanghai Municipal People's government and relevant construction departments carried out research on river regime, hydrology, shipping, risk and other special topics of Shanghai Yangtze River Bridge.

On December 28, 2004, the construction of Shanghai Yangtze River Bridge started.

On August 3, 2006, Shanghai Yangtze River Bridge completed the installation of the main pier steel suspension box.

On November 28, 2007, the main tower capping project of Shanghai Yangtze River Bridge was completed.

In May 2008, the closure project of Shanghai Yangtze River Bridge was carried out; on June 27, the closure project of Shanghai Yangtze River Bridge was completed and the whole line was connected;

On November 8, Shanghai Yangtze River Bridge was completed.

On October 31, 2009, Shanghai Yangtze River Bridge was put into operation.

Bridge location

Shanghai Yangtze River Bridge is located in Shanghai, China, where the main bridge is located in the central area of Beigang waterway of Jiangkou; it starts from Chongming Island of Shanghai in the East, crosses the Yangtze River waterway, reaches Changxing Island in the north, connects with Chenhai highway, and joins Xianghua highway overpass.

Architectural design

building structure

Overall layout

The whole bridge of Shanghai Yangtze River Bridge is composed of main channel bridge, auxiliary channel bridge, River Central Africa navigation bridge, land approach bridge, two pylons and piers; the plane route of main bridge section is in "s" shape, which is arranged from northeast to southwest.

 

Design concept

Shanghai Yangtze River Bridge is located at the estuary of Wanli Yangtze River, which has become another landmark building in Shanghai. The landscape of the bridge at that time should be paid attention to. After navigation demonstration, it is determined that 730m main navigable hole should be built. Considering the span and natural conditions at that time, cable-stayed bridge is the most appropriate choice; and the shape of cable-stayed bridge tower is the most important part of bridge architectural landscape. After comparison and selection, herringbone structure is adopted, corresponding to the need to use separate structure for the main beam of bridge tower, so the shape of cable-stayed bridge is unique It meets the requirements of landmark buildings in Shanghai.

 

Design features

Shanghai Yangtze River Bridge is a steel box girder cable-stayed bridge with double pylons and double cable planes, and the space for rail transit line is reserved in the design. The main navigable span bridge is a separated steel box girder cable-stayed bridge, and the auxiliary navigable span bridge is a continuous girder bridge with variable cross-section. The pylon is a concrete structure, with a single column above the deck and an inverted V-shaped connection below the deck. The anchorage zone of pylon is steel anchor box and concrete The main girder is a separated steel box girder made of Q345qD steel, and the cable girder is anchored by steel anchor box structure; the whole bridge is made of twisted parallel steel cable, which is arranged according to the spatial fan-shaped cable plane, and the main pier is made of variable cross-section bored pile foundation.

 

 

Design parameters

Shanghai Yangtze River Bridge covers a total area of 342300 square meters, with a line length of 16.63 kilometers, and the main bridge crossing the Yangtze River is 9.97 kilometers long. The main navigable spans are (107 + 243 + 730 + 243 + 107) meters long, and the auxiliary navigable spans are (80 + 140 + 140 + 80) meters long. The main girder of the main navigable span bridge is 45 meters wide, 4.0 meters high, and the total height of the bridge tower is 216 meters long. The dimensions along the bridge are 7.4 (tower top) to 10.5 meters long There are 192 stay cables in the whole bridge, the distance between the stay cables on the beam is 15.0 meters, and the distance between the stay cables on the tower is 2.3 meters; there are 151 to 409 galvanized steel wires with a diameter of 7 mm, and the standard strength of the steel wires is 1670 MPa.

 

 

 

Equipment and facilities

On June 15, 2009, the functional lighting of Shanghai Yangtze River Bridge was installed; in July, the landscape lighting of the main bridge and the debugging of fog lights and LED lights along the line were completed.

 

Operation

Fare system

According to the website of Shanghai development and Reform Commission in April 2019, the charges of Shanghai Yangtze River Bridge are as follows:

 

Traffic matters

Shanghai Yangtze River Bridge is located on the Yangtze River waterway. In case of severe weather such as rainstorm, it will be temporarily closed to traffic.

Construction achievements

Technical problems

construction technique

The key technologies of Shanghai Yangtze River Bridge project are as follows: 1. To meet the needs of intensive construction, we need to break through the design problems of highway rail coplanar bridge; 2. Key technologies of long-span steel-concrete composite beam; 3. Design and construction technology of long-span new cable-stayed bridge; 4. Prefabricated assembly technology is adopted to achieve the goal of high efficiency, high quality, fast and environmental protection; 5. Key technologies of fine sand embankment, 6. Application of epoxy asphalt made in China on steel deck of long-span cable-stayed bridge.

 

Construction problems

Shanghai Yangtze River bridge adopts the construction technology of the combination of beam end and tower end traction and tension. The following problems need to be solved in the installation of the original technical level

1. According to the calculation, when the anchor cup at the cable beam end of the bridge is anchored at the theoretical position, the minimum traction required is 3310-5970 kn when the tower end cup is pulled to the anchor box and all the anchor cup nuts are anchored on the wire presser; if the stay cable is pulled by steel strand, the average stress of a single steel strand is calculated as 156 kn, and the steel strand needs more than 39 kn. At that time, considering the constructability of domestic bridges in China, soft traction is preferred The maximum number of steel strand holes is 25. If the steel strand is directly used for traction, not only the hollow diameter of the through Jack needs to be made to more than 300 mm in diameter, but also the construction operation of the second bridge is difficult and there is a large construction risk. Therefore, the problem of large tonnage traction of stay cables needs to be solved during construction.

2. Due to the small space in the tower, the selection of common equipment can not meet the requirements of construction space in the tower, so new equipment and machines need to be developed.

3. Large diameter stay cables are prone to torsion in the process of traction and tension construction, so the torsion of stay cables must be considered in the configuration of construction equipment and operation technology.

 

Scientific research achievements

Honorary recognition

Value significance

The application of some new technologies and techniques in the construction of Shanghai Yangtze River Bridge has a valuable reference value for the construction of cross river and sea bridges. < I (Shanghai highway review) < / I

 

Address: Shanghai Yangtze River Bridge, Chongming County, Shanghai, China

Longitude: 121.75196679575

Latitude: 31.436427176088

Ticket information: Shanghai Yangtze River Tunnel and bridge vehicle toll model classification charging standard table

The toll standards are formulated according to seven different types of vehicles, among which the toll of freight cars per vehicle is slightly higher than that of similar passenger cars, and the toll standard of tunnel is slightly lower than that of Yangtze River Bridge.

According to the charging standard table, the passenger tunnels with 7 seats or less, 8 seats to 19 seats (Changxing Island)-

Chinese PinYin : Shang Hai Zhang Jiang Da Qiao