General Information
| Name in local language: | 三汊矶大桥 (Sānchàjī Dàqiáo) |
|---|---|
| Beginning of works: | 30 April 2004 |
| Completion: | 8 June 2006 |
| Status: | in use |
Project Type
| Structure: |
Self-anchored suspension bridge |
|---|---|
| Support conditions: |
for registered users |
| Secondary structure(s): |
Structurae Plus/Pro - Subscribe Now! |
| Function / usage: |
Road bridge |
| Material: |
main bridge: Steel bridge Structurae Plus/Pro - Subscribe Now! Structurae Plus/Pro - Subscribe Now! |
| Plan view: |
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| Construction method: |
Structurae Plus/Pro - Subscribe Now! deck of main bridge: Longitudinal launching |
Location
| Location: |
Changsha, Hunan, China |
|---|---|
| Crosses: |
|
| Coordinates: | 28° 16' 47.17" N 112° 57' 24.77" E |
Technical Information
Dimensions
| height | 124 m | |
| total length | 1 577 m | |
| number of lanes | 2 x 3 | |
| eastern approach viaduct | ||
|---|---|---|
| span lengths | 8 x 65 m | |
| number of spans | 8 | |
| main bridge | ||
| total length | 732 m | |
| span lengths | 70 m - 132 m - 328 m - 132 m - 70 m | |
| cables | cable length | 680.70 m |
| on-axis distance between cables at top of towers | 25.00 m | |
| deck | deck depth | 3.600 m |
| deck width | 35 m | |
| pylon 11 | height | 106.16 m |
| pylon 12 | height | 104.453 m |
| pylons | pylon height (above deck) | 71.752 m |
| western approach viaduct | ||
| span lengths | 5 x 65 m | |
| number of spans | 5 | |
Quantities
| structural steel | 13 182 t | |
| concrete volume | 18 970 m³ | |
| main bridge | ||
|---|---|---|
| cables | structural steel | 1 026 t |
Design Loads
| design speed | 60 km/h |
Materials
| pylons |
reinforced concrete
(C 50/60)
|
|---|---|
| deck of main bridge |
steel
(Q345d)
|
| deck of approach viaducts |
prestressed concrete
|
| piles |
reinforced concrete
(C 30/37)
|
| pile caps |
reinforced concrete
(C 30/37)
|
Excerpt from Wikipedia
The Sanchaji Bridge (simplified Chinese: 三汊矶大桥; traditional Chinese: 三汊磯大橋; pinyin: Sānchàjī Dàqiáo) is a self-anchored suspension bridge in Changsha, Hunan, China. Completed on June 8, 2006, it has a main span of 732-metre (2,402 ft) and total length of 1,577-metre (5,174 ft). It is signed as part of the North Second Ring Road. The bridge crosses the Xiang River between Yuelu District and Kaifu District.
Name
The name of the bridge comes from the historic place "Sanchaji", which is a community in Yuelu District now.
Design
The bridge over the Xiang River had the longest self-anchored suspension bridge in the world when it was completed in June 2006–1,577-metre (5,174 ft). This was a record during that time.
History
Before 2004, crossing the Xiang River was a time-consuming ordeal. The only way to cross the river was via ferry, and due to the ever growing number of cars, the Changsha government knew that a bridge was needed to support transportation.
The Sanchaji Bridge designed by Central South University and Changsha Planning Institute. The bridge was bid in 2004 to the 5th Branch of Bureau of Bridge, China Railway Group. The foundation stone laying ceremony was held on April 30, 2004. Construction began in April 2004 and was completed in June 2006. The contracted designer was Huang Yuanqun (黄元群).
Text imported from Wikipedia article "Sanchaji Bridge" and modified on 10 February 2023 according to the CC-BY-SA 3.0 license.
Participants
Currently there is no information available about persons or companies having participated in this project.
Relevant Web Sites
Relevant Publications
- (2007): The main cable shape control and design of Sanchaji bridge. Presented at: IABSE Symposium: Improving Infrastructure Worldwide, Weimar, Germany, 19-21 September 2007, pp. 586-587.
- (2010): Sanchaji Bridge: Three-Span Self-Anchored Suspension Bridge, China. In: Structural Engineering International, v. 20, n. 4 (November 2010), pp. 458-461.
- About this
data sheet - Structure-ID
20084566 - Published on:
20/01/2023 - Last updated on:
23/01/2023
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