Difference between revisions of "Daduhe Bridge Tianwan"

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田湾大渡河特大桥<br />
 
田湾大渡河特大桥<br />
 
Shimian, Sichuan, China<br />
 
Shimian, Sichuan, China<br />
(607) feet high / 185 meters high<br />
+
(574) feet high / (175) meters high<br />
1,529 foot span / 466 meter span<br />
+
1,444 foot span / 440 meter span<br />
2017<br />
+
2025<br />
[[File:Dad.jpg|750px|center]]
+
[[File:DaduheTianwanUpdate.jpg|750px|center]]
 
</div>
 
</div>
  
  
With a central span of 466 meters, the Daduhe Bridge at Tianwan is one of the 10 longest span arch bridges in the world.  The 4-lane crossing is the most spectacular structure on the Luding to Shimian expressway that was built to accommodate the lake formed behind the massive 210 meter tall Dagangshan Dam.  Located just a kilometer upstream of the Tianwan arch are 2 large beam bridges that cross over tributaries of the Dadu River at approximately the same height of 185 meters.
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With a central span of 440 meters, the Daduhe Bridge at Tianwan is one of the 20 longest span arch bridges in the world.  The 4-lane crossing is one of two spectacular arch structures on the 97 kilometer Luding to Shimian expressway that was built to accommodate the lake formed behind the massive 210 meter tall Dagangshan Dam.
 
 
The main arch was constructed using the stayed cantilever method whereby a tower is erected on either side of the gorge and cables temporarily radiate out from it to support individual sections of the arch until the two halves can be joined in the middle.  A cable high line between the tops of the two towers was used to move the steel sections into place high above the river.  Like all of Chinese CFST arches, once the arch was closed, concrete was pumped into the 8 main ribs of the arch span, stiffening and strengthening the entire structure.
 
  
 +
Just 10 kilometers to the north on the same expressway is the Daduhe Bridge Shaba with an equal sized CFST through arch span of 440 meters. 
  
[[File:1WushanYangtzeBridge.jpg|750px|center]]
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Located just one kilometer upstream of the Tianwan arch are 2 large beam bridges that cross over tributaries of the Dadu River at a height of 155 meters though most of that is also hidden below the deep reservoir behind the Dagangshan Dam.
Image by Eric Sakowski / HighestBridges.com
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 +
The main arch was constructed using the stayed cantilever method whereby a tower is erected on either side of the gorge and cables temporarily radiate out from it to support individual sections of the arch until the two halves can be joined in the middle.  A cable high line between the tops of the two towers was used to move the steel sections into place high above the river.  Like all of Chinese CFST arches, once the arch was closed, concrete was pumped into the 8 main ribs of the arch span, stiffening and strengthening the entire structure.  The total length of the bridge is 521 meters.
  
  
[[File:3WushanYangtzeBridge.jpg|750px|center]]
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[[File:DaduheTianwanSite&Bridge.jpg|750px|center]]
 
Image by Eric Sakowski / HighestBridges.com
 
Image by Eric Sakowski / HighestBridges.com
  
  
[[File:4WushanYangtzeArch.jpg|750px|center]]
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[[File:DaduheTianwanSite.jpg|750px|center]]
 
Image by Eric Sakowski / HighestBridges.com
 
Image by Eric Sakowski / HighestBridges.com
  
  
[[File:巫山长江大桥主拱肋合龙前Wushan2.jpg|750px|center]]
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[[File:DaduheTianwanBeamBridges.jpg|750px|center]]
The full height of the old level of the Yangtze River can be seen in this construction viewThe top of the arch is about 800 feet (244 meters) above the water.
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An upstream view looking west where the Dadu River makes a sharp 90 degree bend at the town of Lianghekou.  Two more large beam bridges can be seen under construction in the backgroundThis entire scene is now deep under the lake created by the Dagangshan Dam.  
 
 
 
 
[[File:巫山长江大桥主拱肋合龙后Wushan5.JPG|750px|center]]
 
 
 
 
 
[[File:WushanConstruction.jpg|750px|center]]
 
Wushan Yangtze River Bridge construction plan.
 
 
 
 
 
[[File:巫山长江大桥拱肋仰视图Wushan3.jpg|750px|center]]
 
 
 
  
[[File:5WuRainbowBridge.jpg|750px|center]]
 
The 3 Gorges reservoir had already begun to fill up beneath the arch in this view.
 
  
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[[File:DaduheTianwanSatellite&Bridge.jpg|750px|center]]
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Daduhe Bridge Tianwan satellite image.
  
[[File:6Rainbowbrige.jpg|750px|center]]
 
  
 +
[[File:DaduheTianwanSatellite&Bridge2.jpg|750px|center]]
  
[[File:7WushanYangtzeBridge.jpg|750px|center]]
 
Image by Eric Sakowski / HighestBridges.com
 
  
 +
[[File:DagangshanDamSatellite.jpg|750px|center]]
 +
Dagangshan Dam satellite image.
  
[[File:8WushanYangtzeRiverBridgeconstruction.jpg|750px|center]]
 
  
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[[File:DaduheTianwanBridgeMap.jpg|750px|center]]
 +
Daduhe Bridge Tianwan location map.
  
[[File:WushanView.jpg|750px|center]]
 
Image by nipic.com / moriwuyu
 
  
 
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[[File:DaduheTianwanLocationMapWide.jpg|750px|center]]
[[File:9WushanYangtzeBridge.jpg|450px|center]]
 
Image by Eric Sakowski / HighestBridges.com
 
 
 
 
 
[[File:10WushanYangtzeBridge.jpg|450px|center]]
 
Image by Eric Sakowski / HighestBridges.com
 
 
 
 
 
[[File:主拱肋拱脚铰构造Wushan.JPG|750px|center]]
 
One of the massive arch pins is positioned into place.  The foundation was then built over the pin connection.
 
 
 
 
 
[[File:巫山长江大桥全景图Wushan4.JPG|750px|center]]
 
 
 
 
 
[[File:巫山长江大桥.jpg|750px|center]]
 
Image by Eric Sakowski / HighestBridges.com
 
  
  
[[File:15WushanBridgeCity.jpg|750px|center]]
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[[File:ExpresswaysMap.jpg|750px|center]]
Wushan City adjustable level dock elevator.  Image by Eric Sakowski / HighestBridges.com
 
  
  
 
[[Category:Bridges in China]]
 
[[Category:Bridges in China]]

Latest revision as of 02:35, 29 August 2021

Daduhe Bridge Tianwan
田湾大渡河特大桥
Shimian, Sichuan, China
(574) feet high / (175) meters high
1,444 foot span / 440 meter span
2025

DaduheTianwanUpdate.jpg


With a central span of 440 meters, the Daduhe Bridge at Tianwan is one of the 20 longest span arch bridges in the world. The 4-lane crossing is one of two spectacular arch structures on the 97 kilometer Luding to Shimian expressway that was built to accommodate the lake formed behind the massive 210 meter tall Dagangshan Dam.

Just 10 kilometers to the north on the same expressway is the Daduhe Bridge Shaba with an equal sized CFST through arch span of 440 meters.

Located just one kilometer upstream of the Tianwan arch are 2 large beam bridges that cross over tributaries of the Dadu River at a height of 155 meters though most of that is also hidden below the deep reservoir behind the Dagangshan Dam.

The main arch was constructed using the stayed cantilever method whereby a tower is erected on either side of the gorge and cables temporarily radiate out from it to support individual sections of the arch until the two halves can be joined in the middle. A cable high line between the tops of the two towers was used to move the steel sections into place high above the river. Like all of Chinese CFST arches, once the arch was closed, concrete was pumped into the 8 main ribs of the arch span, stiffening and strengthening the entire structure. The total length of the bridge is 521 meters.


DaduheTianwanSite&Bridge.jpg

Image by Eric Sakowski / HighestBridges.com


DaduheTianwanSite.jpg

Image by Eric Sakowski / HighestBridges.com


DaduheTianwanBeamBridges.jpg

An upstream view looking west where the Dadu River makes a sharp 90 degree bend at the town of Lianghekou. Two more large beam bridges can be seen under construction in the background. This entire scene is now deep under the lake created by the Dagangshan Dam.


DaduheTianwanSatellite&Bridge.jpg

Daduhe Bridge Tianwan satellite image.


DaduheTianwanSatellite&Bridge2.jpg


DagangshanDamSatellite.jpg

Dagangshan Dam satellite image.


DaduheTianwanBridgeMap.jpg

Daduhe Bridge Tianwan location map.


DaduheTianwanLocationMapWide.jpg


ExpresswaysMap.jpg