Haicang Bridge

Haicang Bridge is located in the central part of Xiamen West Port. It is an inner bay bridge from Xiamen island to Haicang. It is not only another important channel for Xiamen to connect with the outside world, but also a new tourist attraction in Xiamen. Its beautiful and smooth bridge shape, light and unique anchor, tower structure, bridge color in harmony with the surrounding environment, and soft night scene The results will be compatible with Xiamen, a modern international port scenic tourist city. The construction of the bridge also proves that we have reached the world level of bridge construction.

Haicang Bridge

Haicang Bridge is a cross sea bridge connecting Huli district and Haicang District in Xiamen City, Fujian Province, China. It is located in the West Sea area of Xiamen and is a part of the outer ring of the "two ring and eight shoot" expressway network in Xiamen city.

The construction of Haicang Bridge started in December 1996 and was completed and opened to traffic on December 30, 1999. It was renovated three times in 2002, 2005 and 2013.

Haicang Bridge starts from Shitang interchange in Haicang District of Xiamen City in the West and ends at Xianyue road in Huli District of Xiamen City in the East. The total length of the line is 6.319 km, the main bridge is 1.108 km and the main span is 648 M. the bridge deck is a two-way six lane urban trunk road with a design speed of 80 km / h. The total investment of the project is 2.87 billion yuan.

Construction process

On December 18, 1996, the construction of Haicang Bridge began.

On December 30, 1999, Haicang Bridge was completed and opened to traffic. The name of Haicang Bridge was inscribed by Jiang Zemin, then general secretary of the CPC Central Committee, President of the state and chairman of the Central Military Commission.

In 2002, Haicang Bridge was renovated for the first time. This renovation mainly solved the problem of asphalt displacement on the bridge deck, with a total of 9000 square meters of bridge deck renovated.

In 2005, Haicang Bridge was renovated for the second time. This renovation is mainly to transform the original smooth steel plate surface into a rough plane, and use appropriate asphalt pavement.

In July 2009, the construction of West approach interchange of Haicang Bridge started.

On December 30, 2010, the west approach interchange of Haicang Bridge was officially completed and opened to traffic.

On June 25, 2013, Haicang Bridge was renovated for the third time. In order to ensure the good road condition of Haicang Bridge Deck and the safety of steel box girder structure, the deck pavement of Haicang Bridge was comprehensively repaired.

In January 2016, the traffic improvement project of Shitang interchange of Haicang Bridge was started. A new ramp to canghong road was built at Shitang interchange, and the project was completed in August 2016.

On January 31, 2019, the speed limit of the main bridge of Haicang Bridge will be increased to 90 km / h.

Bridge location

Haicang Bridge is located between Shitang, Haicang District, Xiamen City, Fujian Province, and Dongdu port area, Huli District, Fujian Province, China. It spans the West Sea area of Xiamen, about 6km away from Xinglin bridge and 7.6km away from Xiamen bridge. Haicang Bridge starts from Shitang interchange in Haicang District in the west, and goes eastward to Binhu Road, where the west approach interchange and Binhu Road interchange are set up. Then it crosses Haicang Avenue, Xiamen West Sea area and Dongdu port area, and Dongdu Road interchange and Dongdu Road interchange are set up at Dongdu road. The whole bridge ends at the intersection of Xianyue road and Hubin middle road in the East, connecting with Xianyue road viaduct and Hubin middle road ramp.

Architectural design

building structure

Haicang Bridge is composed of Shitang interchange, west approach road, West Approach Road Interchange, west approach bridge, west channel bridge, east channel bridge, East approach bridge, Dongdu interchange, East approach road and ancillary works. Haicang Bridge is a super large bridge of high-grade highway with two-way six lane and emergency parking belt, which has the function of urban bridge.

The east channel bridge of Haicang Bridge is a three span continuous full floating steel box girder suspension bridge, which adopts shallow buried box type expanded foundation frame type mass concrete anchorage and prestressed main cable anchorage system. In the East-West anchorage area, the non sling box girder, the steel box girder in the non cable area, is set. The west channel bridge is a concrete continuous curved slope rigid frame bridge. The upper part is a separated single box girder, and the lower part is a separated rectangular solid pier and bored pile foundation. The East approach bridge is an equal span curved slope continuous girder bridge. The upper part is a separated single box prestressed concrete continuous box girder, and the lower part is a vase shaped rectangular single wall flexible pier. The west approach bridge is a continuous beam bridge with equal span and curved slope. The upper part of the bridge is a separated single box double width box beam. The bearings are one-way sliding and multi sliding basin type rubber bearings. The lower part is a vase type thin-wall pier and bored pile foundation.

The cable tower of Haicang Bridge adopts portal frame structure, and the structure of each part of the bridge column adopts the design concept of curve modeling as the keynote. The lines on the shape are smooth and gentle, and the silver blue bridge body reflects the blue sky.

Haicang Bridge is the first super large bridge in China to systematically study and design the bridge landscape. It ensures the harmony between the bridge and the natural environment from the overall alignment, structural modeling, landscape color and other aspects. Haicang Bridge flies in the air, beautiful and elegant. Its silver gray body is integrated with blue sky, blue sea, red flowers and green trees. It is like a rainbow and a silver dragon in the West Sea area of Xiamen.

Design parameters

the overall project

The total length of Haicang Bridge is 6.319 km, of which the bridge project is 3.14 km long, the main bridge is 1.108 km long, the main span is 648 m long, the deck is 32 m wide and 3 m high. The design capacity of Haicang Bridge is 50000 vehicles / day, the design speed is 80 km / h, the design service life is 100 years, and the design load is car class 20, trailer class 120 and crowd class 3 kn / m2. The cross section of Haicang Bridge is arranged as follows: 0.5m (crash barrier) + 14.75m (motorway) + 1.5m (median) + 14.75m (motorway) + 0.5m (crash barrier), with a total width of 32m.

 

 

West Approach Bridge

The west approach bridge adopts the structural system of (8 × 42) + (9 × 42) m equal span curved slope continuous beam bridge, with a total length of 718.4 M. The bottom width of the upper beam is 6m and the beam height is 2.5m. The bearings are one-way sliding and multi sliding basin rubber bearings. The diameter of the lower bored pile is 1.5m.

 

West Channel Bridge

The west channel bridge adopts (78 + 140 + 78 + 2 × 42) m prestressed concrete continuous curved slope rigid frame structure system, with a total length of 380 m, a plane curve radius of 900 m and a longitudinal slope of 2.5%. The bottom width of the upper beam is 7m and the beam height is 2.5m. The diameter of the lower cast-in-place pile is 2m.

 

 

East Channel Bridge

The east channel bridge adopts (230 + 648 + 230) m three span continuous full floating full welded steel box girder suspension bridge structure system, with a total length of 1108 m. There are 94 steel box girder sections, each section is 12 m long, the central beam is 3 m high, the total width is 36.4 M, and the total weight of steel box girder is 15800 tons. The size of the bottom of the anchorage is 74m × 52m, and the height is 61.5m. The total amount of concrete for each anchorage is 62400m3. There are two portal frame pylons in the east channel bridge. The pylons are 128.025m high, 5.5m at the bottom and 133.525m at the top. There are two main cables on the pylons. The center distance of the main cables is 34m, the average length is 1227m, and the outer diameter is 570mm. Each main cable consists of 110 strands. Each strand is made of 91 galvanized steel wires with a diameter of 5.1 mm. The main cable and the steel box girder are pulled by the suspender. The net height between the steel box girder and the sea surface is 55 meters, and the 50000 ton ship can be navigable.

 

East approach bridge

East approach bridge adopts (10 × 42m) continuous beam bridge structure system with equal span curved slope, with a total length of 420m. The bottom width of the upper beam is 6m and the beam height is 2.5m. The lower foundation is bored pile with diameter of 1.5m.

 

Operation

Ticket price

Xiamen municipal government issued a circular on April 29, 2019, announcing that the toll of "four bridges and one tunnel" in Xiamen will be stopped from 0:00 on May 1, 2019, including Haicang Bridge.

 

Traffic matters

Haicang Bridge is located in the southeast coastal area of China, which is vulnerable to typhoon weather. According to the "emergency plan for flood control and typhoon prevention in Xiamen City" issued by Xiamen municipal government on April 14, 2014, when the measured wind force reaches level 9, Haicang Bridge will be temporarily closed to traffic.

 

traffic flow

As of October 2018, the average daily traffic flow of Haicang Bridge has reached 161200 vehicles, accounting for about 40% of the total traffic flow in and out of Xiamen.

 

Construction achievements

Technical problems

China began to build long-span bridges in the late 1980s, when the technology was relatively weak. At the beginning of the construction of Haicang Bridge, there are very few references for the design and construction of three span continuous steel box girder suspension bridge. Haicang Bridge Construction

Chinese PinYin : Hai Cang Da Qiao