Difference between revisions of "Dahe Bridge"

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<div style="font-size: 25px; text-align: center;">
 
<div style="font-size: 25px; text-align: center;">
 
Dahe Bridge<br />
 
Dahe Bridge<br />
大河特大桥<br />
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六盘水大河特大桥<br />
 
Liupanshui, Guizhou, China<br />
 
Liupanshui, Guizhou, China<br />
755 feet high / 230 meters high<br />
+
846 feet high / 258 meters high<br />
 
4,101 foot span / 1,250 meter span<br />
 
4,101 foot span / 1,250 meter span<br />
2020<br />
+
2021<br />
[[File:Dahe bridge 大河特大桥 in Liupanshui.jpg|750px|center]]     
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[[File:DaheAerialRender.jpg|750px|center]]     
 
</div>
 
</div>
  
  
Dahe Bridge is the second longest span high level bridge in the world with a tower to tower distance of 1,250 meters.  The giant crossing is also the longest span bridge ever built in Guizhou Province, a region of China with several other colossal suspension bridges that include Qingshuihe, Balinghe, Beipanjiang Hukun, Chishuihe Chajiaotan, Malinghe Three and Dimuhe Bridges.  
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Dahe Bridge is the second longest span high level bridge in the world with a tower to tower distance of 1,250 meters.  The giant crossing is also the longest span bridge ever built in Guizhou Province, a region of China with several other colossal suspension bridges that include Qingshuihe, Balinghe, Beipanjiang Hukun, Chishuihe Chajiaotan, Malinghe Three and Dimuhe Bridges.  Even more amazing the east tower of Dahe Bridge will stand 314 meters in height making it the second tallest suspension bridge tower ever built surpassing Japan's Akashi Kaikyo Bridge but just behind the 328 meter towers of Turkey's Çanakkale Bridge over the Dardanelles Strait.  
  
Several types of bridge were studied including a giant Millau-like cable stayed viaduct and a multi-span beam bridge.  The Dahe Bridge west tower will also be the second tallest suspension bridge tower in the world after Japan's Akashi Kaikyo Bridge with a foundation to tower top difference of 270 meters.  Also unique to the design of Dahe Bridge are the large 120 meter span cantilevered beam bridges on either side of the towers instead of more common simple beam drop-in spans.  This was done on two other suspension bridges in China including Sunxihe and Fuling Qingcaobei Yangtze River Bridges.  The main cable will have a span to rise ratio of 9.5:1 with a cable rise of 130.5 meters.
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Several types of bridge were studied including a giant Millau-like cable stayed viaduct and a multi-span beam bridge.  Those who are familiar with China's high suspension bridges may also notice that Dahe Bridge is the country's first high level span to have suspended back spans that will give it a more visually balanced look.  The main cable will have a span to rise ratio of 9.5:1 with a cable rise of 130.5 meters.
  
  
[[File:Dahe Bridge.|750px|center]]
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<div style="text-align: center; font-size: 25px;">
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[[File:DaheElevationFinal.jpg|900px|center]]<br />
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Dahe Bridge Elevation<br />
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</div>
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[[File:DaheDrawingAerial.JPG|750px|center]]
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[[File:Dahe Bridge Anchor Basement.jpg|750px|center]]
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Foundation work on the towering 314 meter tall east tower.
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[[File:DaheUno Panorama.jpg|900px|center]]
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Image by Eric Sakowski / HighestBridges.com
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[[File:Dahe Bridge Site 20171105.jpg|750px|center]]
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[[File:Dahe Bridge introduce.jpg|750px|center]]
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[[File:Dahe anchor introduce.jpg|750px|center]] 
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[[File:DaheTowerBaseTruss.jpg|750px|center]]
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[[File:DaheFoundationFill.jpg|750px|center]]
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[[File:DaheConcreteRebarFillUp.jpg|750px|center]]
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[[File:DaheAnchorageRender1.jpg|750px|center]]
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[[File:DaheAnchorageRender2.jpg|750px|center]]
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[[File:DaheAnchorageBlock.jpg|750px|center]]
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[[File:DaheAnchorageRender.jpg|750px|center]]
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[[File:DaheAnchorConcrete.jpg|750px|center]]
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[[File:DaheAnchorConstruction.jpg|750px|center]]
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[[File:DaheAnchorSaddle.jpg|750px|center]]
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[[File:DaheTowerFinalClean.jpg|200px|center]]
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The 314.3 meter tall Dahe Bridge east tower.
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[[File:DaheAnchorWires.jpg|750px|center]]
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[[File:DaheCatwalk.jpg|750px|center]]
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[[File:DaheDeckCenterPlacement.jpg|750px|center]]
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[[File:DaheDeckRaise.jpg|750px|center]]
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[[File:DaheDeckRaise2.jpg|750px|center]]
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[[File:DaheDeckTrussCenter.jpg|750px|center]]
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[[File:DaheSaddleRender.jpg|750px|center]]
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[[File:DaheTowerTopConstruction.jpg|750px|center]]
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[[File:DaheTowerTopRender.jpg|750px|center]]
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[[File:DaheTrussFoundation.jpg|750px|center]]
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[[File:DaheTrussPlacement.jpg|750px|center]]
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[[File:DaheRoadPaveRender.jpg|750px|center]]
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[[File:DaheRenderRoad.jpg|750px|center]]
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[[File:DaheTowersSkyRender.jpg|750px|center]]
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[[File:Dahe Bridge draw.jpg|750px|center]]
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The first suspension bridge design was for a lower structure with shorter towers and unsuspended side spans.
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[[File:DaheLiupanshuiSuspension Panorama.jpg|900px|center]]
 
Much of Dahe Bridge will cross over the town of Dahezhen.  Image by Eric Sakowski/HighestBridges.com
 
Much of Dahe Bridge will cross over the town of Dahezhen.  Image by Eric Sakowski/HighestBridges.com
  
  
 
[[File:DaheSuspensionSlope.jpg|750px|center]]
 
[[File:DaheSuspensionSlope.jpg|750px|center]]
The slope where the east tower will be located.  Image by Eric Sakowski/HighestBridges.com
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The slope where the 314 meter tall east tower will be located.  Image by Eric Sakowski/HighestBridges.com
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[[File:Dahe bridge 大河特大桥 in Liupanshui.jpg|750px|center]]
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An early configuration of Dahe Bridge with unsuspended back spans and large 120 meter prestressed beam spans on either side of the main towers.  This design had a shorter east tower 270 meters tall.
  
  
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[[File:DaheTrussElevation.jpg|750px|center]]
 
[[File:DaheTrussElevation.jpg|750px|center]]
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The older Dahe Bridge design truss cross section.
  
  
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[[File:DaduheLudingLocationMap.jpg|750px|center]]
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[[File:DaheBridgeLocationMap.jpg|750px|center]]
 
Dahe Bridge location map.
 
Dahe Bridge location map.
  
 
[[Category:Bridges in China]]
 
[[Category:Bridges in China]]

Revision as of 07:21, 6 May 2019

Dahe Bridge
六盘水大河特大桥
Liupanshui, Guizhou, China
846 feet high / 258 meters high
4,101 foot span / 1,250 meter span
2021

DaheAerialRender.jpg


Dahe Bridge is the second longest span high level bridge in the world with a tower to tower distance of 1,250 meters. The giant crossing is also the longest span bridge ever built in Guizhou Province, a region of China with several other colossal suspension bridges that include Qingshuihe, Balinghe, Beipanjiang Hukun, Chishuihe Chajiaotan, Malinghe Three and Dimuhe Bridges. Even more amazing the east tower of Dahe Bridge will stand 314 meters in height making it the second tallest suspension bridge tower ever built surpassing Japan's Akashi Kaikyo Bridge but just behind the 328 meter towers of Turkey's Çanakkale Bridge over the Dardanelles Strait.

Several types of bridge were studied including a giant Millau-like cable stayed viaduct and a multi-span beam bridge. Those who are familiar with China's high suspension bridges may also notice that Dahe Bridge is the country's first high level span to have suspended back spans that will give it a more visually balanced look. The main cable will have a span to rise ratio of 9.5:1 with a cable rise of 130.5 meters.


DaheElevationFinal.jpg

Dahe Bridge Elevation


DaheDrawingAerial.JPG


Dahe Bridge Anchor Basement.jpg

Foundation work on the towering 314 meter tall east tower.


DaheUno Panorama.jpg

Image by Eric Sakowski / HighestBridges.com


Dahe Bridge Site 20171105.jpg


Dahe Bridge introduce.jpg


Dahe anchor introduce.jpg


DaheTowerBaseTruss.jpg


DaheFoundationFill.jpg


DaheConcreteRebarFillUp.jpg


DaheAnchorageRender1.jpg


DaheAnchorageRender2.jpg


DaheAnchorageBlock.jpg


DaheAnchorageRender.jpg


DaheAnchorConcrete.jpg


DaheAnchorConstruction.jpg


DaheAnchorSaddle.jpg


DaheTowerFinalClean.jpg

The 314.3 meter tall Dahe Bridge east tower.


DaheAnchorWires.jpg


DaheCatwalk.jpg


DaheDeckCenterPlacement.jpg


DaheDeckRaise.jpg


DaheDeckRaise2.jpg


DaheDeckTrussCenter.jpg


DaheSaddleRender.jpg


DaheTowerTopConstruction.jpg


DaheTowerTopRender.jpg


DaheTrussFoundation.jpg


DaheTrussPlacement.jpg


DaheRoadPaveRender.jpg


DaheRenderRoad.jpg


DaheTowersSkyRender.jpg


Dahe Bridge draw.jpg

The first suspension bridge design was for a lower structure with shorter towers and unsuspended side spans.


DaheLiupanshuiSuspension Panorama.jpg

Much of Dahe Bridge will cross over the town of Dahezhen. Image by Eric Sakowski/HighestBridges.com


DaheSuspensionSlope.jpg

The slope where the 314 meter tall east tower will be located. Image by Eric Sakowski/HighestBridges.com


An early configuration of Dahe Bridge with unsuspended back spans and large 120 meter prestressed beam spans on either side of the main towers. This design had a shorter east tower 270 meters tall.


DaheCableStayedRender.jpg

Dahe Bridge renders showing the beam and cable stayed proposals.


DaheTrussElevation.jpg

The older Dahe Bridge design truss cross section.


DaheSatellite&Bridge.jpg

Dahe Bridge satellite image.


DaheBridgeLocationMap.jpg

Dahe Bridge location map.