Xijiang Railway Bridge
Coordinates: 23 ° 7 ′ 18 ″ N , 112 ° 24 ′ 11 ″ E
| Xijiang Railway Bridge | ||
|---|---|---|
| use | Railway bridge | |
| Convicted | Nanning-Guangzhou high-speed line | |
| Crossing of | Xi Jiang | |
| place | Zhaoqing , Guangdong | |
| construction | Steel arch bridge | |
| overall length | 618 m | |
| Longest span | 450 m | |
| Arrow ratio | 4th | |
| opening | 2014 | |
| location | ||
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The Xijiang Railway Bridge runs the Nanning - Guangzhou high-speed line over the Xi Jiang near Zhaoqing City , Guangdong Province , China . It stands in the Sangrong Gorge a few kilometers above the city, where it connects the railway tunnel on one side with the tunnel on the other. Its construction began in 2009; the route was opened in 2014.
It is one of the ten largest arch bridges in the world.
It should not be confused with the half-timbered construction of the combined road and rail bridge in Zhaoqing.
description
The high-speed route serves both passenger and freight traffic and is driven at up to 250 km / h.
The 618 m long, double-track steel arch bridge crosses the river with a large, bright red-painted arch with a span of 450 m, in which the deck girder is suspended. The arch has an arrow ratio of 4. The two arch ribs are inclined at 4.8 ° to each other from the vertical. They have a lateral center distance of 34 m at the abutments , which is only 15.7 m at the apex.
The four abutments are each 26.6 m long, 12.0 m wide and 23.4 m deep.
The two arch ribs consist of a steel, 4.0 m wide box girder , the height of which tapers from 15.0 m at the abutments to 8.0 m at the top of the arch. They are connected and stiffened above the carriageway girder by 12 crossbeams, also designed as hollow boxes, and below it by 3 K crossbars.
The carriageway girder consists of two parallel, 3.0 m high and 2.0 m wide steel box girders with various cross connections in the form of box girders and double T girders. On top of them there is a 20 cm thick reinforced concrete slab on which 20 cm thick reinforced concrete precast slabs are laid, the joints of which are filled with a particularly elastic concrete.
The arch halves were erected in a cantilever with auxiliary anchoring on high steel pillars standing on the abutments.
Individual evidence
- ↑ Zhaoqing's Xijiang Bridge main arches on chinadaily.com
- ↑ Zhaoqing Road and Railway Bridge: Zhaoqing Xijiang Bridge: 肇庆 西江 大桥
- ↑ Elevation and side view of Zhaoqing Xijiang River Bridge on researchgate.net
- ↑ The technical information is based on the article by XuHui He, Biao Wei, Yunfeng Zou, Dongyang Hu, Daniel G. Linzell: Dynamic characteristics and seismic response analysis of a long-span steel-box basket-handle railway arch bridge . In: Journal of Vibroengineering . tape 17 , no. 5 . JVE International, August 2015, ISSN 1392-8716 , p. 2422-2433 ( researchgate.net [accessed February 27, 2018]).
- ↑ shrinkage-compensating steel-fiber reinforced concrete