Bayi Bridge

Bayi Bridge, also known as Nanchang Bayi Bridge. Completed in 1936, formerly known as Zhongzheng bridge, it is a wooden bridge. After 1949, Zhongzheng bridge was rebuilt and its name was changed from Zhongzheng to Bayi. At that time, the width of the "Bayi Bridge" was only 10 meters. Later, the traffic on the bridge became increasingly busy, and the "Bayi Bridge" became more and more unbearable. Construction of the New Bayi Bridge was started on November 5, 1995. Located 50 meters upstream of the original bridge, the New Bayi Bridge, with a total length of more than 3000 meters, is the first cable-stayed bridge in Jiangxi Province and the longest cable-stayed bridge in Nanchang City, Jiangxi Province. It starts from Yangming Road in the East, crosses Ganjiang River, connects Lushan South Avenue in the west, Changbei open development zone in the north and Changjiu Expressway in the north. It is an important channel connecting Hunan, Hubei, Anhui and northern Jiangxi.

Bayi Bridge

Bayi Bridge is a river crossing channel connecting Honggutan district and Donghu District in Nanchang City, Jiangxi Province, China. It is located on the Ganjiang River, and is an important part of Nanchang city's main road network.

Bayi Bridge, formerly known as "Zhongzheng bridge", was built in 1936. On November 5, 1995, the construction of the New Bayi Bridge was started 50 meters upstream of the original bridge. It was officially completed and opened to traffic on October 1, 1997.

Bayi Bridge starts from Bayi Avenue in the East and ends at Fenghuang middle Avenue in the west, with a total length of 2.28 km and a main bridge of 1040 M. the bridge deck is a two-way four lane urban trunk road with a design speed of 60 km / h. The bridge construction fund is 440 million yuan with a total investment of 660 million yuan (including cross-strait road projects)

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Construction process

Old Bayi Bridge

In 1934, the construction of the bridge was started, which was called Zhongzheng bridge.

In 1936, Zhongzheng bridge was built.

On May 22, 1949, the people's Liberation Army liberated Nanchang, and Zhongzheng bridge was renamed Bayi Bridge.

In 1955, Bayi Bridge was rebuilt

 

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In 1998, after the New Bayi Bridge was completed and opened to traffic, the old bridge was demolished by underwater blasting

 

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New Bayi Bridge

In March 1995, the New Bayi Bridge project was approved; on November 5, the construction of the New Bayi Bridge started 50 meters upstream of the old bridge

 

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In November 1996, Bayi Bridge began to hang the first pair of cables

 

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In May 1997, the closure section of Bayi Bridge was completed

 

On October 1, the New Bayi Bridge was completed and opened to traffic

 

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On June 20, 2009, Bayi Bridge was closed, and maintenance and reinforcement for about half a year began

 

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On February 10, 2010, the deck lighting of Bayi Bridge was completed

 

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Bridge location

Bayi Bridge is located in Nanchang City, Jiangxi Province, China, connecting Honggutan to Donghu District. The line starts from Bayi Avenue in the East, crosses Ganjiang River, and connects Lushan South Avenue to fenghuangzhong Avenue in the West. The line passing through the bridge is national highway 105

 

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Architectural design

building structure

Overall layout

Bayi Bridge is composed of three parts: Main Bridge, approach bridge, approach road and bridge

 

The main bridge section is arranged from southeast to northwest.

Design features

Bayi Bridge is a reinforced concrete prestressed cable-stayed bridge with double single tower, double cable plane and fan-shaped dense cable system. The main hole of the main bridge is fixed by tower, beam and pier. The main beam adopts double main beam section and cantilever pouring construction. The system is a symmetrical "double single tower, double cable plane and dense cable system cable-stayed bridge". The main beam is composed of four box girders with unit chambers and cast-in-place construction. The piers are made of eight piles with 4 meters in diameter The cable is PE sheathed flexible cable. The south approach bridge is a three-story trumpet interchange and the North approach bridge is a two-story elevated interchange

 

 

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Design parameters

The main bridge of Bayi Bridge adopts double single pylons of 2 × 160 meters, the bridge span is (50 + 2 × 160 + 3 × 50 + 2 × 160 + 50) meters, the auxiliary hole spans 6 × 50 meters, the pier of the auxiliary hole adopts 44 piles of 2 meters in diameter, the tower height of the main tower is 103 meters, the tower height above the bridge deck is 86 meters, the hanging cable on the tower adopts cross anchoring method, the cable distance on the beam is 8 meters, and the navigation clearance of the main hole is 10 meters, which is the third level channel standard It is about 6 kilometers long, including 1040 meters for the main bridge, 2017 meters for the south approach bridge and 1314 meters for the north bridge.

 

 

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Equipment and facilities

Overload monitoring system

On October 26, 2016, Bayi Bridge installed overload monitoring system, including seven subsystems, including dynamic weighing, license plate recognition, video monitoring, data transmission, power supply and distribution, data storage of general monitoring center and sub monitoring center, background management software, etc. The system can timely and accurately measure the weight, license plate, speed and other information of overweight and overloaded vehicles without stopping, decelerating or driving at a specific speed

 

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lighting

On February 10, 2010, the lighting project of Bayi Bridge was completed, and the lighting was mainly red. About 9 million yuan will be invested in the lighting project, including the main bridge tower beam and the North-South approach bridge. The whole lighting project mainly uses LED energy-saving light source materials, as well as the combination of metal halide projection lamp and traditional headlamp. There are more than 5000 lamps, of which about 200 lamps are arranged at the stay cables, and about 3600 lamps are arranged at the flange of the main bridge. In addition, about 400 lights are also installed at the ramp. The whole bridge combines the point light source with the line light source to outline the majestic appearance of the H-shaped bridge tower and the outline of the stay cable, which not only reflects the solemnity of the bridge, but also does not lose the beauty

 

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Operation

Fare system

Since 0:00 on March 1, 2012, Jiangxi Provincial Department of transportation has stopped collecting fees for urban toll bridges in Nanchang, including Bayi Bridge, and the whole bridge section is free of charge.

 

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Traffic matters

Since 0:00 on January 1, 2015, Bayi Bridge (excluding the South Ramp) is prohibited from foreign motor vehicles from 07:00-09:30 and 16:30-20:30 every day

 

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traffic flow

As of May 2013, the average daily traffic volume of Bayi Bridge has reached 87000, including 96000 on April 28

 

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Construction achievements

Technical problems

Bayi Bridge is the most important urban bridge on the Ganjiang River. Many technical problems need to be solved in the construction at that time

(1) The design of large diameter pile foundation and the analysis and research of flag construction scheme.

(2) The development of a new technology of turnover template.

(3) Development and application of front fulcrum hanging basket

 

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Honorary recognition

Cultural characteristics

Building under the bridge

Under the south approach bridge of Bayi Bridge, there are Xunyang tower, yugutai and Peony Pavilion, which embody Jiangxi's characteristic history and culture. There are four Pavilions in Longzhu Pavilion.

Bridge sculpture

The North Bridge of Bayi Bridge has two powerful cast bronze double lions, which means "emancipating the mind and seeking truth from facts" (the homonym of lion, thought and thing is similar). The South Bridge of Bayi Bridge is a sculpture of black and white cats. The claws of the black cat are still pressing a mouse. The mouse is holding a copper coin. The white cat jumps up and down, ready to pounce on the prey in the hands of the black cat

 

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Calligraphy inscription

The four big characters "Bayi Bridge" on the main tower of Bayi Bridge were inscribed by General Secretary Jiang Zemin of the CPC Central Committee at that time

 

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Value significance

The construction of Bayi Bridge promotes the formation of a new pattern of cities on both sides of the river, plays an important role in the development of Changbei region, the economic development of Jiangxi Province and the improvement of investment environment, and also becomes another scenic spot for tourism, leisure and entertainment in Nanchang

 

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Address: Qingshanhu District, Nanchang City

Longitude: 115.87483831213

Latitude: 28.69447175268

Tour time: 15 minutes

Traffic information: No.2, 4, 8, 22, 25, 28, 38, 121, 136, 139, 210, 222, 223, 232, 240, 302, 311, 506, 704 express air conditioning bayiqiao station

Ticket information: Free

Opening hours: all day