Danhe Bridge - Revision history

Sakowski at 23:47, 27 February 2024

2024-02-27T23:47:26Z

Sakowski at 02:35, 12 August 2022

2022-08-12T02:35:41Z

Sakowski at 02:50, 29 April 2020

2020-04-29T02:50:23Z

Sakowski at 06:48, 10 February 2017

2017-02-10T06:48:30Z

Sakowski at 09:41, 24 January 2014

2014-01-24T09:41:55Z

Sakowski at 07:46, 24 January 2014

2014-01-24T07:46:50Z

Sakowski at 07:45, 24 January 2014

2014-01-24T07:45:43Z

Sakowski at 07:39, 24 January 2014

2014-01-24T07:39:33Z

Sakowski: Created page with '
Danhe Bridge
丹河大桥
Jincheng, Shanxi, China
(295) feet high / (90) meters high
479 foot sp…'

2014-01-24T07:10:16Z

Created page with '<div style="font-size: 25px; text-align: center;"> Danhe Bridge<br /> 丹河大桥<br /> Jincheng, Shanxi, China<br /> (295) feet high / (90) meters high<br /> 479 foot sp…'

New page

<div style="font-size: 25px; text-align: center;">
Danhe Bridge<br />
丹河大桥<br />
Jincheng, Shanxi, China<br />
(295) feet high / (90) meters high<br />
479 foot span / 146 meter span<br />
2001<br />
[[File:Danhe.jpg|750px|center]]
</div>

The Danhe arch bridge is special not so much for its 90 meter height but for its main span length of 146 meters which is a world record for any stone or masonry bridge. China has the world's 20 longest stone arch bridges and with labor costs increasing rapidly in China, Danhe will probably remain the longest span bridge of its type forever. China is the only country in the world still constructing arch bridges with stone blocks.

Despite the reputation such bridges have for being on smaller, less traveled two lane roads, the Danhe Bridge was designed and built to carry heavy traffic across a modern 4-lane expressway. The bridge is 24.8 meters wide with an arch that rises 32.444 meters. The arch ring has a variable depth of 3.5 meters at the base to 2.5 meters at the crown. The total length of the bridge is 413.7 meters with 8 spans of 2x30 + 146 + 5x30 meters. The stones were used for the main arch ring in layers 36cm to 60cm deep. The total number of stone blocks amounted to 34,409 for the arch ring.

[[File:飞水崖大桥.jpg|750px|center]]

[[File:ShenxigouConstruction.jpg|750px|center]]

[[File:ShenxigouView.jpg|750px|center]]

[[File:飞水崖大桥3.jpg|750px|center]]

[[File:飞水崖大桥5.jpg|750px|center]]

[[File:飞水崖大桥4.jpg|750px|center]]

[[File:飞水崖大桥.jpg|750px|center]]

[[File:ShenxigouConstruction.jpg|750px|center]]

[[File:ShenxigouView.jpg|750px|center]]

[[File:飞水崖大桥3.jpg|750px|center]]

[[File:飞水崖大桥5.jpg|750px|center]]

[[File:飞水崖大桥4.jpg|750px|center]]

[[Category:Bridges in China]]

← Older revision		Revision as of 23:47, 27 February 2024
Line 14:		Line 14:
	Despite the reputation such bridges have for being on smaller, less traveled two lane roads, the Danhe Bridge was designed and built to carry heavy traffic across a modern 4-lane expressway. The bridge is 24.8 meters wide with an arch that rises 32.444 meters for a span to rise ratio of 4.5 to 1. The arch ring has a variable depth of 3.5 meters at the base to 2.5 meters at the crown. The total length of the bridge is 413.7 meters with 8 spans of 2x30 + 146 + 5x30 meters. The stones were used for the main arch ring in layers 36cm to 60cm deep. The total number of stone blocks amounted to 34,409 for the arch ring. The main rib supports 14 spandrel spans with a wall to wall distance of 31 feet (9.4 meters). The massive span was constructed upon a huge steel scaffold-like centring. The bridge is located about 15 miles (24 kms) east of Jincheng in Shanxi Province along the G5512 Expressway.		Despite the reputation such bridges have for being on smaller, less traveled two lane roads, the Danhe Bridge was designed and built to carry heavy traffic across a modern 4-lane expressway. The bridge is 24.8 meters wide with an arch that rises 32.444 meters for a span to rise ratio of 4.5 to 1. The arch ring has a variable depth of 3.5 meters at the base to 2.5 meters at the crown. The total length of the bridge is 413.7 meters with 8 spans of 2x30 + 146 + 5x30 meters. The stones were used for the main arch ring in layers 36cm to 60cm deep. The total number of stone blocks amounted to 34,409 for the arch ring. The main rib supports 14 spandrel spans with a wall to wall distance of 31 feet (9.4 meters). The massive span was constructed upon a huge steel scaffold-like centring. The bridge is located about 15 miles (24 kms) east of Jincheng in Shanxi Province along the G5512 Expressway.

−	In 2009 a reservoir formed beneath the bridge from a downstream dam.	+	In 2009 a reservoir formed beneath the bridge from a downstream dam.
		+
		+
		+	<div style="text-align: center; font-size: 25px;">
		+	[[File:DanheElevationDrawing.jpg\|900px\|center]]<br />
		+	Danhe Bridge Elevation<br />
		+	</div>

@@ Line 12: / Line 12: @@
 The Danhe arch bridge is special not so much for its 90 meter height but for its main span length of 146 meters which is a world record for any stone or masonry bridge.  China has the world's 20 longest stone arch bridges and with labor costs increasing rapidly in China, Danhe will probably remain the longest span bridge of its type forever.  China is the only country in the world still constructing arch bridges with stone blocks.
-Despite the reputation such bridges have for being on smaller, less traveled two lane roads, the Danhe Bridge was designed and built to carry heavy traffic across a modern 4-lane expressway.  The bridge is 24.8 meters wide with an arch that rises 32.444 meters.  The arch ring has a variable depth of 3.5 meters at the base to 2.5 meters at the crown.  The total length of the bridge is 413.7 meters with 8 spans of 2x30 + 146 + 5x30 meters.  The stones were used for the main arch ring in layers 36cm to 60cm deep. The total number of stone blocks amounted to 34,409 for the arch ring.  The main rib supports 14 spandrel spans with a wall to wall distance of 31 feet (9.4 meters). The massive span was constructed upon a huge steel scaffold-like centring. The bridge is located about 15 miles (24 kms) east of Jincheng in Shanxi Province.
+Despite the reputation such bridges have for being on smaller, less traveled two lane roads, the Danhe Bridge was designed and built to carry heavy traffic across a modern 4-lane expressway.  The bridge is 24.8 meters wide with an arch that rises 32.444 meters for a span to rise ratio of 4.5 to 1.  The arch ring has a variable depth of 3.5 meters at the base to 2.5 meters at the crown.  The total length of the bridge is 413.7 meters with 8 spans of 2x30 + 146 + 5x30 meters.  The stones were used for the main arch ring in layers 36cm to 60cm deep. The total number of stone blocks amounted to 34,409 for the arch ring.  The main rib supports 14 spandrel spans with a wall to wall distance of 31 feet (9.4 meters). The massive span was constructed upon a huge steel scaffold-like centring. The bridge is located about 15 miles (24 kms) east of Jincheng in Shanxi Province along the G5512 Expressway.
 In 2009 a reservoir formed beneath the bridge from a downstream dam.

← Older revision		Revision as of 02:50, 29 April 2020
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	[[File:DanheWide.jpg\|750px\|center]]		[[File:DanheWide.jpg\|750px\|center]]
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		+
		+	[[File:DaheTimberSupport.jpg\|750px\|center]]

← Older revision		Revision as of 06:48, 10 February 2017
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	In 2009 a reservoir formed beneath the bridge from a downstream dam.		In 2009 a reservoir formed beneath the bridge from a downstream dam.
		+
		+
		+	[[File:DanheDrone.jpg\|750px\|center]]

← Older revision		Revision as of 09:41, 24 January 2014
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	[[File:DanheBridge8.jpg\|750px\|center]]		[[File:DanheBridge8.jpg\|750px\|center]]
		+
		+
		+	[[File:DanheDeckDrawing.jpg\|850px\|center]]

@@ Line 6: / Line 6: @@
 foot span / 146 meter span<br />
 <br />
-[[File:Danhe.jpg|750px|center]]
+[[File:Danhe2008Close.jpg|750px|center]]
 </div>
@@ Line 14: / Line 14: @@
 Despite the reputation such bridges have for being on smaller, less traveled two lane roads, the Danhe Bridge was designed and built to carry heavy traffic across a modern 4-lane expressway.  The bridge is 24.8 meters wide with an arch that rises 32.444 meters.  The arch ring has a variable depth of 3.5 meters at the base to 2.5 meters at the crown.  The total length of the bridge is 413.7 meters with 8 spans of 2x30 + 146 + 5x30 meters.  The stones were used for the main arch ring in layers 36cm to 60cm deep. The total number of stone blocks amounted to 34,409 for the arch ring.
-[[File:飞水崖大桥4.jpg|750px|center]]
 [[Category:Bridges in China]]