Wuyuan Bridge

Wuyuan bridge (Zhongzhaiwan bridge) is located at the estuary of inner lake formed by reclamation of land from the sea in the northeast of Xiamen Island. Its two ends are connected with the wutongzao area and the dunshangzao area of Huandao Road project. The total length of the bridge is 810m, the main bridge is 34.9m wide and the approach bridge is 32m wide. The main bridge is a steel half through basket arch bridge with a main span of 208 m and two side spans of 58 m. The approach bridges at both ends are 6-hole 40 m prestressed continuous box girders.

Wuyuan Bridge

Wuyuan bridge, formerly known as "Zhongzhaiwan bridge", is a passage across the sea in Xiamen City, Fujian Province, China. It spans the entrance of Wuyuan Bay and is one of the components of Huandao East Road crossing Wuyuan Bay

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Wuyuan bridge started construction on March 1, 2003, and completed the closure of the main bridge on March 18, 2004

On July 5, 2004, Zhongzhaiwan bridge was opened to traffic

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Wuyuan bridge starts from Wuyuanwan road in the East, crosses Wuyuanwan estuary in the East and Zhongzhai road in the West; the total length of the line is 6.22km, and the bridge is 0.81km; the bridge deck is a two-way six lane urban trunk road, and the design speed is 60km / h

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Construction process

On March 1, 2003, the construction of Zhongzhaiwan bridge was started and the pile foundation construction was carried out

On July 18, Zhongzhaiwan bridge carried out the installation of arch seat; on June 4, Zhongzhaiwan bridge completed the construction of main pier pile foundation; on August 26, Zhongzhaiwan bridge carried out the installation of arch rib; on November 17, Zhongzhaiwan bridge completed the installation of four a arch sections

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On January 14, 2004, the erection of steel box girder of Zhongzhaiwan bridge was carried out; on March 9, 2004, the erection of steel box girder of Zhongzhaiwan bridge was completed

On March 18, the closure of the main bridge of Zhongzhaiwan bridge was completed

On June 30, the dynamic and static load test of Zhongzhaiwan bridge was completed

On July 1, Zhongzhaiwan bridge was put into trial operation

On July 5, Zhongzhaiwan bridge was opened to traffic

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On February 20, 2006, Xiamen Municipal People's government announced 155 names of place names. Zhongzhaiwan bridge was renamed "Wuyuan bridge"

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On June 2, 2012, Wuyuan bridge completed the upgrading and reconstruction of the line and night light

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On May 1, 2016, Wuyuan bridge completed the lighting improvement work

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On March 3, 2017, Wuyuan bridge was repaired

On April 23, Wuyuan bridge carried out the maintenance of the middle beam of the expansion joint

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On January 10, 2019, Wuyuan bridge will carry out maintenance of famous brand lighting

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Bridge location

Wuyuan bridge is located in the northeast of Huli District, Xiamen City, Fujian Province, China. It is about 2.25 km away from Tianyuan bridge in the south. The bridge starts from Wuyuanwan road in the East, crosses Wuyuanwan estuary in the East, and ends at Zhongzhai road in the West. The route is Huandao East Road of Xiamen Island

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Architectural design

building structure

Overall layout

Wuyuan bridge is composed of main bridge, arch rib, arch seat, suspender, pier, approach bridge and interchange ramp. The main bridge section is arranged from southeast to northwest

 

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Design features

Design parameters

The main line of Wuyuan bridge is 6.22km long, with a total length of 0.81km. The main bridge is 324m long, with a main span of 208m and two side spans of 58m. The calculation span of the main span is 208 meters, the rise span ratio is 1 / 4, the inclination angle of the side and main arch ribs is 10.6 degrees; the transverse spacing of the arch starting points of the two arch ribs is 38.4 meters, the spacing of the main span vault axis is 18.937 meters, and the spacing of the side span vault axis is 32.447 meters. The height of steel box girder is 2.28M, and the thickness of steel plate is 12mm, 14mm and 24mm respectively. The thickness of the concrete deck on the steel box girder is 250mm; the full width of the steel box girder is 34m, the length of the standard section is 15m, the hoisting weight of the general beam section is 8.8t to 38.6t, and the length of the arch beam joint section is 26.46m. The width of the arch box is 2.5m, the height of the main span arch box changes from 4.5m to 2.5m from the arch seat to the middle of the span, and the height of the side span arch box changes from 4.7m to 3.0m from the arch seat to the vault; the thickness of the top and bottom plate of the arch box is 32mm, the thickness of the web plate is 28mm, the general spacing of the diaphragm plate is 2800mm, and the thickness of the steel plate is 16mm; the thickness of the top, bottom plate and web plate is 16mm, and the standard spacing is 500mm. There are 42 tie bars in the whole bridge. Each sling has 85 steel wires with a diameter of 7mm, a length of 7.279-28.317m and a weight of 748-1458kg. The tensile strength of steel wire is not less than 1670 MPa, and the safety system is designed. The plane dimension of the main pier is (15.5 × 10.0) square meters, the height is 5.036 meters, the width of the tie beam is 7.0 meters, the height is 4.0 meters; the bearing platform is (170 × 135) square meters, the thickness is 30 meters, and the top elevation of the bearing platform is 1.0 meters

 

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Equipment and facilities

Lighting equipment

On May 1, 2016, Wuyuan bridge completed the lighting improvement work, using environmental protection and energy-saving LED lights to show the beauty of the bridge at night

 

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Operation

Fare system

On July 5, 2004, Wuyuan bridge was opened to traffic and put into operation. It was changed into a part of the urban trunk road and no toll system was implemented

 

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Construction achievements

Technical problems

The main construction technologies of Wuyuan bridge are as follows:

1. The pile foundation construction adopts the scheme of percussion drilling, and five drilling machines are arranged on each pile cap to speed up the process progress.

2. The steel structure adopts the coating system of spraying aluminum and polyurethane topcoat, and the steel structure is hoisted with full support method and large floating crane.

3. It is manufactured in the factory, including three parts: side box, I-beam and small longitudinal beam, which are manufactured separately. After 3 + 1 pre assembly, they are disassembled, coated separately and assembled as a whole before leaving the factory. In order to speed up the transportation and assembly progress, 10 beams are transported to the bridge site for assembly.

4. The two sets of calculation programs of bridge space and plane are used for calculation analysis and comparison, and the theoretical completed bridge state and typical construction state determined by design calculation are checked with each other. In the construction process at that time, the follow-up construction control indexes are adjusted dynamically

 

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Cultural characteristics

2012 Xiamen Mid Autumn Festival tour Carnival

On September 17, 2012, Xiamen organizing committee organized 16 yachts and sailboats to invite the public to participate in the cruise. The route passed Wuyuan bridge to celebrate the Mid Autumn Festival

 

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Value significance

Zhongzhaiwan bridge (now Wuyuan bridge) < / I has been opened to traffic, which has completely closed the most peripheral ring road of Xiamen island's network like highway traffic. After Huli Avenue, Luling Road, Xianhuang road and other traffic trunk roads are connected with Huandao Road through nodes, the newly formed road network can not only greatly relieve the traffic pressure in the island, but also speed up the development of the northeast part of the island The bridge will also become the most important road connecting line between the East passage and the highway railway bridge

 

. < I (comments by Zhang Changping, then mayor of Xiamen) < / I

Address: Huli District, Xiamen City, Fujian Province

Longitude: 118.17972564697

Latitude: 24.537704467773

Chinese PinYin : Wu Yuan Da Qiao