detailed information
Yangsigang Yangtze River Bridge in Wuhan is the tenth Yangtze River Bridge in Wuhan and is under construction. It is located about 6 kilometers upstream of Wuhan Yangtze River Bridge, with a total length of 5.8 kilometers. Yangsigang Yangtze River Bridge is arranged in 12 double-deck lane, with a main span of 1700m, steel truss girder and concrete pylon. It is the second longest suspension bridge in the world with a total investment of about 8.034 billion yuan. On February 3rd, 20 14, the project was officially started, and it is expected to be completed in September, 20 19, with a design period of four years.
20 10 10 yangsigang river-crossing tunnel with the same depth is compared and demonstrated, and the bridge-crossing scheme is finally determined. The previous speculation about whether Yangsi Port will build a river-crossing tunnel or a Yangtze River Bridge has finally come to fruition.
Yangsigang Yangtze River Bridge was surveyed and designed by China Railway Bridge Survey and Design Institute, with Xu Gongyi, a national master of engineering design and a famous suspension bridge expert in China, as the chief designer.
Research process
Bridge and tunnel demonstration
In May, 2004, Wuhan Urban Construction Investment Co., Ltd. entrusted China Railway Bridge Survey and Design Institute and China Communications Second Highway Survey and Design Institute to carry out the pre-feasibility study and design of the bridge and tunnel scheme of Yangsigang River Crossing Project respectively.
In May 2009, we continued to entrust the above-mentioned units to carry out in-depth research, comparison and design of bridge and tunnel schemes.
In the first half of 20 10, China Railway Bridge Design Institute was entrusted to carry out preliminary geological exploration and survey in combination with the comparison and demonstration of bridge and tunnel access schemes.
In August, 20 10, the phased achievements of Yangsi port river crossing channel were compared and demonstrated, and it was considered that the bridge was superior to the tunnel. Finally, it is determined that the river-crossing passage is in the form of a bridge, and at the same time, due to the timing of rail transit construction, the joint construction of tracks is not considered in the bridge scheme.
20 1 1 In August, Wuhan Municipal Development and Reform Commission organized city investment company, planning institute and bridge institute, and invited Yangtze River Waterway Bureau, Yangtze River Maritime Bureau, Yangtze River Waterway Bureau and Provincial Water Resources Department to study and design the bridge type and span scheme submitted by Yangsigang Yangtze River Bridge, such as 900m+900m double main span suspension bridge,/kloc-.
July 20 13, China International Consulting Company evaluated and demonstrated the Yangsigang river-crossing project.
On March 20 14, the national development and reform commission completed the examination and approval of the project.
May 20 14, China railway bridge survey and design institute completed the preliminary design.
From August 2065438 to August 2004, domestic experts were invited to review the preliminary design and determine the final design scheme.
20 15 12, China railway bridge survey and design institute completed the construction drawing design. The upper floor of Yangsigang Bridge is directly connected with Hanyang International Expo Center Interchange and Wuchang Batan Interchange, and only undertakes the function of rapid passage. The lower floor connects Hanyang Parrot Avenue, Binjiang Avenue and Wuchang Batan Road, which mainly solves the traffic function in the area. The main bridges on both sides of the strait are connected to the ground after crossing Parrot Avenue and Linjiang Avenue.
The lower level of Hanyang is connected to Binjiang Avenue and Parrot Avenue, and the main line is connected to Jiang Ying Road. The upper and lower transfer ramps are set on Binjiang Avenue, which can be used for the upper and lower transfer between the two-story bridge and the ground, and the upper and lower transfer between the two-story bridge and the three-story bridge. The lower floor on Wuchang side is directly connected with Batan Road, and the upper and lower transfer ramps are set up near Wu Jindi Road. Vehicles on the third floor bridge can go down to the second floor bridge through the connecting ramp, and vehicles on the second floor bridge can also go straight to the third floor bridge through the connecting ramp.
The bridge group is dense and requires crossing the river.
Because the site of Yangsigang Yangtze River Bridge is very special, the upstream and downstream bridges are dense, and the waterway requirements are harsh. In dry season, the main channel is close to Hanyang side, and there is a diversion submerged dam downstream of the water flow. Hydrological conditions are complex, so as soon as the bridge crosses the river according to the requirements of industry norms.
Typical, incarnation
Double-deck highway suspension bridge
On March 20 12, the special consultation meeting on the pre-feasibility study of Wuhan river-crossing channel finally made a breakthrough in the Yangtze River-crossing channel in Wuhan, which attracted much attention. Subsequently, the Standing Committee of Wuhan Municipal Government decided in principle to adopt a double-deck steel truss suspension bridge for Yangsi Port's river crossing channel through the preliminary research scheme and expert opinions, so as to reserve enough development space for the future. This will be the first double-decker highway Yangtze River Bridge in Wuhan.
July 20 13, China International Consulting Company evaluated and demonstrated the Yangsigang river-crossing project.
On March 20 14, the national development and reform commission completed the examination and approval of the project.
May 20 14, China railway bridge survey and design institute completed the preliminary design.
From August 2065438 to August 2004, domestic experts were invited to review the preliminary design and determine the final design scheme.
20 15 12, China railway bridge survey and design institute completed the construction drawing design.
Design of multifunctional bridge
The upper floor of Yangsigang Bridge is directly connected with Hanyang International Expo Center Interchange and Wuchang Batan Interchange, and only undertakes the function of rapid passage. The lower floor connects Hanyang Parrot Avenue, Binjiang Avenue and Wuchang Batan Road, which mainly solves the traffic function in the area. The main bridges on both sides of the strait are connected to the ground after crossing Parrot Avenue and Linjiang Avenue.
The lower level of Hanyang is connected to Binjiang Avenue and Parrot Avenue, and the main line is connected to Jiang Ying Road. The upper and lower transfer ramps are set on Binjiang Avenue, which can be used for the upper and lower transfer between the two-story bridge and the ground, and the upper and lower transfer between the two-story bridge and the three-story bridge. The lower floor on Wuchang side is directly connected with Batan Road, and the upper and lower transfer ramps are set up near Wu Jindi Road. Vehicles on the third floor bridge can go down to the second floor bridge through the connecting ramp, and vehicles on the second floor bridge can also go straight to the third floor bridge through the connecting ramp.
It is understood that the steel truss bridge is composed of truss members, with greater rigidity, greater spanning capacity and good landscape of the first bridge. Wuhan Yangtze River Bridge is a famous steel truss bridge. At present, only the Yangtze River Bridge and Tianxingzhou Yangtze River Bridge have been built on the Yangtze River in Wuhan, but these two bridges are jointly built by public railways. Yangsigang Yangtze River Bridge will be the first double-deck highway bridge across the Yangtze River in China.
According to Xu Gongyi, the chief designer of the bridge, the design of the double-deck highway bridge also fully considered the needs of fast, slow, motor vehicles, non-motor vehicles and pedestrians for sightseeing and strolling, thus giving birth to the "most functional" river-crossing bridge. According to the design, the upper deck of the bridge will be provided with 6 fast lanes and the lower deck will be provided with 4 slow lanes. In the near future, considering the needs of citizens crossing the river, two non-motor vehicle lanes will be set up to allow electric vehicles, motorcycles and bicycles to pass in different areas. In the long run, if the number of motor vehicles does not decrease, the lower floor can also be changed into six motor vehicle lanes. There are sidewalks on the upper and lower floors for citizens to sightseeing, sightseeing and jogging.
In bridge design, making full use of bridge site resources, maintaining the maximum functional potential at one time, and separating "speed" from "speed" can also make river-crossing traffic more efficient. It is rare in the world that a bridge can meet so many functions. Xu Gongyi believes that after the completion, there will be four bridge groups with different shapes between the Yangtze River Bridge and the Baishazhou Bridge, and the public can feel the beautiful scenery of "four bridges with different seats and unobstructed views".
construction progress
20 14 12 3. The foundation laying ceremony of Yangsigang Yangtze River Bridge was held on the bank of Hanyang.
2065438+May 2005, the open caisson of the main tower floated in place.
On August 20 16 12, the open caisson of No.2 main tower sank in place.
On September 2, 20 16,1day, 1# concrete pouring project for pile caps was completed.
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