Author: satsu_jin

Top State of the Art Bridges in Mountainous Guizhou Province [Copy link] 中文

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Post time 2012-11-28 18:51:25 |Display all floors
3. A worker walks along a beam more than 300m above the river.


3. A worker walks along a beam more than300m above the river..jpg





4. Bridge still under construction



4. Bridge still under construction.jpg






5. Beipanjiang River Bridge - still unfinished



5. Beipanjiang River Bridge - still unfinished.jpg






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Post time 2012-11-28 18:55:19 |Display all floors
6. Beipanjiang River Bridge



6. Beipanjiang River Bridge.jpg





7. One of many tunnels leading to the east side of the bridge



7. One of many tunnels leading to the east side of the bridge.jpg





8. East of the Beipanjiang River Bridge are several high bridges. The left one is more than 100m high




8. East of the Beipanjiang River Bridge are several high bridges. The left one i.jpg

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Post time 2012-11-28 19:44:07 |Display all floors
5.  Liuguang He  River Bridge


Liuguang He entered the record books in 2001 when it became the world’s highest bridge at 297m,  Even though Liuguang He’s record would stand for just two years, it will always have the distinction of being the only beam bridge in history that held the top spot among high bridges.

The Liuguang He is the crown jewel in a highway that is best described as a museum of high Chinese bridges. Located near the city of Guiyang, this 160km stretch of 2-lane highway contains 2 suspension bridges, one 198m and one 168m high as well as another concrete beam bridge 183m high and two arches, 116m and 110m high. Outside of China, there is no other 160km stretch of highway on earth to have so many high bridges.



1. Liuguang He River Bridge 2 lane bridge - 297m high - 240m span - World's Highest Bridge from 2001 - 2003



1. Liuguang He River Bridge 2 lane bridge - 297m high - 240m span World Highest .jpg




2. Liuguang He  Bridge Elevation drawing


2. Liuguang He  Bridge Elevation drawing.jpg








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Post time 2012-11-28 19:46:13 |Display all floors
3. Liuguang He with river in valley


3. Liuguang He  with river in valley.jpg





4. Liuguang He Aerial view




4. Liuguang He Aerial view.jpg

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Post time 2012-11-28 19:49:17 |Display all floors
5. Bijie Highway Map. A map of the highest bridges along the 160 km) Bijie Highway. It is one of the 5 greatest high bridge highways on earth.




5. Bijie Highway Map A map of the highest bridges along the 160 km Bijie Highway.jpg





6. Another Liuguang He Aerial view



6. Another Liuguang He Aerial view.jpg


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Post time 2012-11-29 10:10:47 |Display all floors
6. Beipanjiang Railway Bridge

Opened in 2001, the 275 m high Beipanjiang River railway bridge became the highest arch bridge on earth. In 2009, the Beipanjiang river railway bridge lost its highest arch title to another Chinese span, the 294 m high Zhijinghe road bridge.

Located just west of the city of Liupanshui near the north end of Guizhou province on the Shuibai Railway, the Beipanjiang railway bridge crosses an exceptionally deep gorge with vertical cliffs rising several hundred meters from either side of the Beipan river.

Construction of the bridge was built using a method developed by  Chinese engineers that had never been used before on a bridge so large. Instead of building two temporary towers to support a “high line” to assist in building the two sides of the arch outward until they met in the middle, the two halves of the bridge were built separately on falsework constructed just above ground on the hillsides at the edge of the canyon. Once completed, each side was then rotated horizontally outward over the river in one delicate maneuver and then connected at the crown. The central bearing located on top of each of the foundations consisted of a pair of closely fitted 3.5 m diameter concave spherical sections with a radius of 8 m. On top of the lower bearing, between the two sections, 610 pieces of 60mm x 18mm teflon flakes were used to keep friction to a minimum. A massive water tank was installed on the back of the counter weighting pier to assist in finding an accurate center of gravity as well as preventing the system from overturning. Once the two halves of the arch were closed at the crown, the rotatable foundations were entombed in tons of concrete. This unique method of rotating the arch halves during construction has been used on other large arch bridges in China including those that are built on flat terrain just above the level of the river.

Also unique to the Beipanjiang span are the two steel arch ribs. Initially hollow during construction, concrete was pumped inside of them from the foundations upward to the crown. First used by  China in 1990, they have refined and improved the technique and now use it on the majority of their steel arch bridges. Depending on the length of the span and the width of the bridge, different styles of tubing are used. For the Beipanjiang, a mix of a horizontal dumbbell and single tubes was adopted. Other configurations have single tubes further apart, double dumbbells or a tight cluster of tubes known as “multiple contiguous”. Once hardened, the concrete solidifies and stiffens the arch, improving the overall strength of the entire structure.



1. Beipanjiang River Railway Bridge 275m high



1. Beipanjiang River Railway Bridge 275m high.jpg





2. Beipanjiang River Railway Bridge Elevation - Drawing




2. Beipanjiang River Railway Bridge Elevation - Drawing.jpg

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Post time 2012-11-29 10:14:04 |Display all floors
3. Beipanjiang River Railway Bridge Wide George




3. Beipanjiang River Railway Bridge Wide George.JPG





4. Beipanjiang Railway Bridge




4. Beipanjiang Railway Bridge.jpg



5. A rare view of the arch taken from the inaccessible Beipanjiang  gorge



5. A rare view of the arch taken from the inaccessible Beipanjiang  gorge.jpg





6. A passenger train rolls across the bridge in this August, 2011 view




6. A passenger train rolls across the bridge in this August, 2011 view.jpg


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