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 />
+
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 />
 
2020<br />
[[File:Dae.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.  
+
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  
+
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.
  
  
is the biggest structure on the Dapingzi to Dongdi expressway near Liupanshui City and has a length of 51 kilometers.
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[[File:DaheDrawingAerial.JPG|750px|center]]
  
Crossing a wide reservoir from a downstream dam just north of Luding city, the giant Daduhe suspension bridge is the largest structure on the Ya'an to Kangding expressway.  Like many of China's Westernmost highways, this extension from the G5 expressway came many years after the more populous cities had already been connected in northern and eastern Sichuan Province.  The Kanding route was especially difficult to construct with an amazing 82% of the road on bridges or in tunnels.
 
  
Located at kilometer 99, the alignment chosen for the Daduhe Bridge resulted in an unusual design for the east end where the anchorages had to be placed high up inside the steep mountain slope. To avoid compromising the strength of the deep underground anchorage, the engineers split the east-west lanes apart into tunnels separated by more then 100 meters, keeping the alignment off to the sides of the cable anchorage.  The deck of the Daduhe Bridge is approximately 235 meters above the full lake level or 280 meters to the original level of the Dadu River.
+
[[File:Dahe Bridge Anchor Basement.jpg|750px|center]]
 +
Foundation work on the towering 314 meter tall east tower.
  
The construction of the truss will follow an unusual pattern first implemented on the Aizhai Bridge in Hunan Province where each truss piece will be pulled and rolled along with wheel bogies that travel along horizontal wires hanging from the suspender cables.  The wheel bogies travel back to the cliff side staging area to carry another truss section out and the process repeats until the truss is completed.
 
  
Luding was already one of the most famous cities in Western China for its legendary chain bridge of 100 meters that ranked among the longest suspension bridges in the world since its completion in 1701.  Several historic battles have taken place at or near the chain bridge due to its strategic importance, most notably during the Long March in 1935.
+
[[File:DaheUno Panorama.jpg|900px|center]]
 
 
The Daduhe Bridge at Luding is one of at least a dozen major suspension bridges that have opened in China since 2009 that have span lengths of approximately a kilometer or longer and deck heights of 200 to 500 meters.
 
 
 
 
 
雅康高速大渡河大桥是这条高速公路上最引人注目的工程,位于泸定县城以北,跨越一个宽阔的水库。就像中国西部边疆其他高速公路一样,这条高速公路是G5京昆高速的支线,在人口稠密的四川盆地内高速公路网建好后才开始修建。雅康高速公路难度极大,桥梁隧道占比达到惊人的82%。
 
 
 
该桥位于99公里处,由于地形的关系,这座桥有一个世界独一无二的设计,东端隧道锚锚固在引桥桥头隧道顶的山崖上。为避免隧道锚穿入桥东端公路隧道,东端的隧道是分离式的,入洞后不久就分开,中间间隔百米以上。隧道锚正好插入往返的高速公路隧道之间。此桥桥面高于泸定水库满水位235米,相当于大渡河原始水位280米高。
 
 
 
该桥钢桁梁使用轨索滑移法吊装,这种方法首次应用于湖南矮寨大桥,参见:
 
 
 
 
 
[[File:Daduhe Luding draw.jpg|750px|center]]
 
 
 
 
 
[[File:DaduheLudingAerialRender.jpg|750px|center]]
 
 
 
 
 
[[File:DaduheLudingDrawingView.jpg|750px|center]]
 
 
 
 
 
[[File:DaduheLudingTowerTopping.jpg|750px|center]]
 
 
 
 
 
[[File:DaduheLudingTowersView.jpg|750px|center]]
 
 
 
 
 
[[File:DaduheLudingGiantSuspSideWBridge copy.jpg|750px|center]]
 
Image by Eric Sakowski / HighestBridges.com
 
 
 
 
 
[[File:DaduheLudingTowerTopCranes.jpg|750px|center]]
 
 
 
 
 
[[File:DaduheLudingDrone&GreenSlope.jpg|750px|center]]
 
 
 
 
 
[[File:DaduheLudingTowerTop&River.jpg|750px|center]]
 
 
 
 
 
[[File:DaduheLudingTowerTopCrane.jpg|750px|center]]
 
 
 
 
 
[[File:DaduheLudingTowerTop.jpg|750px|center]] 
 
 
 
 
 
[[File:DaduheTowerAerial.jpg|750px|center]]
 
 
 
 
 
[[File:DaduheLudingWire7.jpg|750px|center]]
 
Daduhe Luding Bridge drone carrying the first pilot line between the towers.
 
 
 
 
 
[[File:DaduheLudingWire3.jpg|450px|center]]
 
 
 
 
 
[[File:DaduheLudingWire6.jpg|750px|center]]
 
 
 
 
 
[[File:DaduheLudingWire5.jpg|750px|center]]
 
 
 
 
 
[[File:DaduheLudingWire4.jpg|750px|center]]
 
 
 
 
 
[[File:DaduheLudingWire.jpg|450px|center]]
 
 
 
 
 
[[File:DaduheLudingGiantSuspensionRiverView.jpg|750px|center]]
 
Image by Eric Sakowski / HighestBridges.com
 
 
 
 
 
[[File:DaduheOne Panorama.jpg|750px|center]]
 
Image by Eric Sakowski / HighestBridges.com
 
 
 
 
 
[[File:DaduheLudingGiantSuspensionLonglens.jpg|750px|center]]
 
Image by Eric Sakowski / HighestBridges.com
 
 
 
 
 
[[File:DaduheLudingGiantSuspensionPanorama.jpg|900px|center]]
 
 
Image by Eric Sakowski / HighestBridges.com
 
Image by Eric Sakowski / HighestBridges.com
  
  
[[File:DaduheLudingGiantSuspensionLakeLonglens.jpg|750px|center]]
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[[File:Dahe Bridge Site 20171105.jpg|750px|center]]
The Daduhe River reservoir and the upstream dam intake tunnels.  Image by Eric Sakowski / HighestBridges.com
 
 
 
 
 
[[File:DaduheLudingGiantSuspensionWestSlope.jpg|750px|center]]
 
Daduhe Luding Bridge west slope.  Image by Eric Sakowski / HighestBridges.com
 
 
 
 
 
[[File:DaduheLudingGiantSuspensionEastSlope2.jpg|750px|center]]
 
Image by Eric Sakowski / HighestBridges.com
 
 
 
 
 
[[File:DaduheLudingVideoGrab1.jpg|750px|center]]
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
[[File:DaduheLudingVideoGrab2.jpg|750px|center]]
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
[[File:DaduheLudingVideoFoundation.jpg|750px|center]]
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
[[File:DaduheLudingVideoGrab3.jpg|750px|center]]
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
[[File:DaduheLudingVideoGrab4.jpg|750px|center]]
 
 
 
 
 
 
 
 
 
  
  
 +
[[File:Dahe Bridge introduce.jpg|750px|center]]
  
[[File:DaduheLudingVideoGrab5.jpg|750px|center]]
 
  
 +
[[File:Dahe anchor introduce.jpg|750px|center]] 
  
  
 +
[[File:DaheTowerBaseTruss.jpg|750px|center]]
  
  
 +
[[File:DaheFoundationFill.jpg|750px|center]]
  
  
[[File:DaduheLudingVideoGrab6.jpg|750px|center]]
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[[File:DaheConcreteRebarFillUp.jpg|750px|center]]
  
  
 +
[[File:DaheAnchorageRender1.jpg|750px|center]]
  
  
 +
[[File:DaheAnchorageRender2.jpg|750px|center]]
  
  
 +
[[File:DaheAnchorageBlock.jpg|750px|center]]
  
[[File:DaduheLudingVideoGrabTruss.jpg|750px|center]]
 
  
 +
[[File:DaheAnchorageRender.jpg|750px|center]]
  
  
 +
[[File:DaheAnchorConcrete.jpg|750px|center]]
  
  
 +
[[File:DaheAnchorConstruction.jpg|750px|center]]
  
  
[[File:DaduheLudingVideoGrabTruss2.jpg|750px|center]]
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[[File:DaheAnchorSaddle.jpg|750px|center]]
  
  
 +
[[File:DaheAnchorWires.jpg|750px|center]]
  
  
 +
[[File:DaheCatwalk.jpg|750px|center]]
  
  
 +
[[File:DaheDeckCenterPlacement.jpg|750px|center]]
  
[[File:DaduheLudingGiantSuspensionTruss.jpg|750px|center]]
 
  
 +
[[File:DaheDeckRaise.jpg|750px|center]]
  
[[File:DaduheLudingVideoGrabWide.jpg|750px|center]]
 
  
 +
[[File:DaheDeckRaise2.jpg|750px|center]]
  
[[File:DaduheLudingVideoPierConst.jpg|750px|center]]
 
  
 +
[[File:DaheDeckTrussCenter.jpg|750px|center]]
  
[[File:Daduhe Luding bridge.jpg|750px|center]]
 
  
 +
[[File:DaheSaddleRender.jpg|750px|center]]
  
[[File:DaduheLudingWestSlope.jpg|750px|center]]
 
Daduhe Bridge west slope tower location.
 
  
 +
[[File:DaheTowerTopConstruction.jpg|750px|center]]
  
[[File:LudingDaduheEastSlope.jpg|750px|center]]
 
Daduhe Bridge east slope tower location.
 
  
 +
[[File:DaheTowerTopRender.jpg|750px|center]]
  
[[File:DaduheLudingGiantSuspEastViaduct.jpg|750px|center]]
 
A large viaduct is located just before the east tunnel entrance leading to the Daduhe Luding Bridge.  Image by Eric Sakowski / HighestBridges.com
 
  
 +
[[File:DaheTrussFoundation.jpg|750px|center]]
  
[[File:DaduheLudingWestTower.jpg|350px|center]]
 
Early Daduhe Luding Bridge West Tower design that was scrapped.
 
  
 +
[[File:DaheTrussPlacement.jpg|750px|center]]
  
[[File:DaduheRiver.jpg|750px|center]]
 
Daduhe River area near the bridge crossing.
 
  
 +
[[File:DaheRoadPaveRender.jpg|750px|center]]
  
[[File:LudingChainSide.jpg|750px|center]]
 
Luding Chain Bridge.
 
  
 +
[[File:DaheRenderRoad.jpg|750px|center]]
  
[[File:LudingChainUnder.jpg|750px|center]]
 
  
 +
[[File:DaheTowersSkyRender.jpg|750px|center]]
  
[[File:LudiingChainBridge.jpg|750px|center]]
 
  
 +
[[File:Dahe Bridge draw.jpg|750px|center]]
 +
The first suspension bridge design was for a lower structure with shorter towers and unsuspended side spans.
  
[[File:DaduheLudingChain3.jpg|750px|center]]
 
Image by Eric Sakowski / HighestBridges.com
 
  
 +
[[File:DaheLiupanshuiSuspension Panorama.jpg|900px|center]]
 +
Much of Dahe Bridge will cross over the town of Dahezhen.  Image by Eric Sakowski/HighestBridges.com
  
[[File:DaduheLudingChain4.jpg|750px|center]]
 
Image by Eric Sakowski / HighestBridges.com
 
  
 +
[[File:DaheSuspensionSlope.jpg|750px|center]]
 +
The slope where the 314 meter tall east tower will be located.  Image by Eric Sakowski/HighestBridges.com
  
[[File:DaduheLudingChain10.jpg|750px|center]]
 
Image by Eric Sakowski / HighestBridges.com
 
 
 
[[File:DaduheLudingChain18.jpg|450px|center]]
 
Image by Eric Sakowski / HighestBridges.com
 
 
 
[[File:DaduheLudingChain26.jpg|750px|center]]
 
Image by Eric Sakowski / HighestBridges.com
 
 
 
[[File:DaduheLudingChain33.jpg|750px|center]]
 
Image by Eric Sakowski / HighestBridges.com
 
  
 +
[[File:Dahe bridge 大河特大桥 in Liupanshui.jpg|750px|center]]
 +
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.
  
[[File:DaduheLudingSatellite&Bridge.jpg|750px|center]]
 
Daduhe Bridge Xingkang satellite image with the approximate location of the bridge drawn in.
 
  
 +
[[File:DaheCableStayedRender.jpg|750px|center]]
 +
Dahe Bridge renders showing the beam and cable stayed proposals.
  
[[File:DaduheLudingSatelliteWide&Bridge.jpg|750px|center]]
 
  
 +
[[File:DaheTrussElevation.jpg|750px|center]]
 +
The older Dahe Bridge design truss cross section.
  
[[File:DaduheLudingLocationMap.jpg|750px|center]]
 
Daduhe Bridge Xingkang location map.
 
  
 +
[[File:DaheSatellite&Bridge.jpg|750px|center]]
 +
Dahe Bridge satellite image.
  
[[File:DaduheLudingLocationMapWide.jpg|750px|center]]
 
  
 +
[[File:DaheBridgeLocationMap.jpg|750px|center]]
 +
Dahe Bridge location map.
  
 
[[Category:Bridges in China]]
 
[[Category:Bridges in China]]

Revision as of 22:07, 19 February 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
2020

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.


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


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.