Difference between revisions of "Tangjiawan Bridge"

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(Created page with '<div style="font-size: 25px; text-align: center;"> Tangjiawan Bridge<br /> 唐家湾特大桥<br /> Yingjing, Sichuan, China<br /> 387 feet high / 118 meters high<br /> 374 foot …')
 
 
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Tangjiawan Bridge<br />
 
Tangjiawan Bridge<br />
 
唐家湾特大桥<br />
 
唐家湾特大桥<br />
Yingjing, Sichuan, China<br />
+
Jiuxiangzhen, Sichuan, China<br />
 
387 feet high / 118 meters high<br />
 
387 feet high / 118 meters high<br />
 
374 foot span / 114 meter span<br />
 
374 foot span / 114 meter span<br />
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One of 3 unique beam bridges on the G5 Yaxi expressway in southern Sichuan, the Tangjiawan is not as high as its cousins to the north over the Labajin and Heishigou ravines but shares the unique concrete pier design that the Chinese developed for just these spans.   
+
One of 3 unique beam bridges on the G5 Yaxi expressway in southern Sichuan, the Tangjiawan is not as high as its cousins to the north over the Labajin and Heishigou ravines but shares the unique concrete "T" beam and pier design that the Chinese developed for just these spans.   
  
 
The concept behind the SRC or steel reinforced concrete column is to combine the shear-wall strength of concrete but retain steel tubes for cross bracing and to maintain the skeletal strength of the piers to meet seismic requirements of bending and flexibility.  The optimum height level for each concrete pier section was 12 meters which was partly determined by the weight of a 12 meter steel column which has a weight of 30 tons.  The concrete is placed on both the outside and inside of the steel tubes making for a steel and concrete sandwich.  At each 12 meter interval there is a flat concrete deck that gives the 4 walls rigidity.  The two parallel piers are 10 by 6.8 meters.   
 
The concept behind the SRC or steel reinforced concrete column is to combine the shear-wall strength of concrete but retain steel tubes for cross bracing and to maintain the skeletal strength of the piers to meet seismic requirements of bending and flexibility.  The optimum height level for each concrete pier section was 12 meters which was partly determined by the weight of a 12 meter steel column which has a weight of 30 tons.  The concrete is placed on both the outside and inside of the steel tubes making for a steel and concrete sandwich.  At each 12 meter interval there is a flat concrete deck that gives the 4 walls rigidity.  The two parallel piers are 10 by 6.8 meters.   
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The G5 Yaxi highway also has several impressive tunnels including the 10 kilometer long Daxiangling mud mountain tunnel with a maximum depth of 1650 meters with more then 5 kilometers of that length over 1000 meters deep.
 
The G5 Yaxi highway also has several impressive tunnels including the 10 kilometer long Daxiangling mud mountain tunnel with a maximum depth of 1650 meters with more then 5 kilometers of that length over 1000 meters deep.
 
   
 
   
 
<div style="text-align: center; font-size: 25px;">
 
[[File:TangjiawanElevFinal.jpg|750px|center]]<br />
 
Tangjiawan Bridge Elevation<br />
 
</div>
 
 
  
 
[[File:TangjiawanView.jpg|750px|center]]  
 
[[File:TangjiawanView.jpg|750px|center]]  
  
  
[[File:Tangjiawan唐家湾特大桥114+114mtrBeam483mtrsLong.jpg|750px|center]]
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[[File:Tangjiawan114x2mtr.jpg|750px|center]]  
 
 
 
 
[[File:TangjiawanComputer.jpg|750px|center]]  
 
  
  
 
[[File:TangjiawanComputerView.jpg|750px|center]]  
 
[[File:TangjiawanComputerView.jpg|750px|center]]  
 
 
[[File:Heishigou黑石沟大桥190mtrH.jpg|750px|center]]
 
 
 
[[File:Heishigou黑石沟大桥152mtrPier.jpg|750px|center]]
 
  
  
 
[[File:HeighigouPierDesign.jpg|600px|center]]
 
[[File:HeighigouPierDesign.jpg|600px|center]]
Heishigou Bridge pier design.
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Tangjiawan Bridge pier design.
  
  
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[[File:LabajinTower 001.jpg|750px|center]]
 
[[File:LabajinTower 001.jpg|750px|center]]
Drawings of the unique pier frame design.  
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Drawings of the unique pier frame design on the much taller Labajin Bridge.  
  
  
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[[File:182.5PierFoundation.jpg|750px|center]]
 
[[File:182.5PierFoundation.jpg|750px|center]]
The base of Labajin Bridge which uses the same exact pier design as Heishigou Bridge with steel tubes at all 4 corners.
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The base of Labajin Bridge which uses the same exact pier design as Tangjiawan Bridge with steel tubes at all 4 corners.
 +
 
 +
 
 +
[[File:TangjiawanSatelliteNew.jpg|750px|center]]
 +
Tangjiawan Bridge satellite image.
  
  
 
[[File:TangjiawanSatellite.jpg|750px|center]]
 
[[File:TangjiawanSatellite.jpg|750px|center]]
Tangjiawan Bridge satellite image.
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Tangjiawan Bridge satellite during construction.
  
  
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[[File:TangjiawanMapLocation.jpg|750px|center]]
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[[File:YanxigouG5LocationMap.jpg|750px|center]]
 
Tangjiawan Bridge location map.
 
Tangjiawan Bridge location map.
 
 
[[File:LabajinSatelliteWide.jpg|750px|center]]
 
Satellite view of Heishigou, Labajin and Shizijinghe Bridges on the G5 expressway.  Not shown is the Tangjiawan Bridge further to the south which also uses the unique steel reinforced concrete column tubes.  The Shizijinghe Bridge was built with conventional concrete-only piers that are on nearly every other high beam bridge in China.
 
 
 
[[File:LabajinLocationMap.jpg|750px|center]]
 
Location map of Heishigou, Labajin and Shizijinghe Bridges.  Tangjiawan Bridge is just off the map to the south.
 
 
 
[[File:YaxiExpresswayMap.jpg|750px|center]]
 
Yaxi Expressway Map.
 
  
  

Latest revision as of 00:14, 12 February 2022

Tangjiawan Bridge
唐家湾特大桥
Jiuxiangzhen, Sichuan, China
387 feet high / 118 meters high
374 foot span / 114 meter span
2012

TangjiawanBridge.jpg


One of 3 unique beam bridges on the G5 Yaxi expressway in southern Sichuan, the Tangjiawan is not as high as its cousins to the north over the Labajin and Heishigou ravines but shares the unique concrete "T" beam and pier design that the Chinese developed for just these spans.

The concept behind the SRC or steel reinforced concrete column is to combine the shear-wall strength of concrete but retain steel tubes for cross bracing and to maintain the skeletal strength of the piers to meet seismic requirements of bending and flexibility. The optimum height level for each concrete pier section was 12 meters which was partly determined by the weight of a 12 meter steel column which has a weight of 30 tons. The concrete is placed on both the outside and inside of the steel tubes making for a steel and concrete sandwich. At each 12 meter interval there is a flat concrete deck that gives the 4 walls rigidity. The two parallel piers are 10 by 6.8 meters.

The G5 Yaxi highway also has several impressive tunnels including the 10 kilometer long Daxiangling mud mountain tunnel with a maximum depth of 1650 meters with more then 5 kilometers of that length over 1000 meters deep.


TangjiawanView.jpg


Tangjiawan114x2mtr.jpg


TangjiawanComputerView.jpg


HeighigouPierDesign.jpg

Tangjiawan Bridge pier design.


HeishigouCrossSec.jpg


LabajinTower 001.jpg

Drawings of the unique pier frame design on the much taller Labajin Bridge.


HeishigouPierConstruction.jpg


HeishigouPierBase.jpg

Heishigou Bridge pier foundation design.


HeishigouPierBaseImage.jpg


182.5PierFoundation.jpg

The base of Labajin Bridge which uses the same exact pier design as Tangjiawan Bridge with steel tubes at all 4 corners.


TangjiawanSatelliteNew.jpg

Tangjiawan Bridge satellite image.


TangjiawanSatellite.jpg

Tangjiawan Bridge satellite during construction.


TangjiawanSatelliteWide.jpg


YanxigouG5LocationMap.jpg

Tangjiawan Bridge location map.


YaxiHwyMap.jpg