Tian'e Longtan Bridge
Tian'e Longtan Bridge 天峨龙滩特大桥 | |
|---|---|
| Coordinates | 25°04′41″N 107°01′16″E / 25.0781°N 107.0211°E |
| Carries | Guangxi S26 Dan'e Expressway |
| Crosses | Hongshui River Longtan Dam reservoir |
| Characteristics | |
| Design | Arch bridge |
| Material | Concrete |
| Total length | 2,488.55 m (8,164.5 ft) |
| Width | 26 m (85 ft) |
| Longest span | 600 m (2,000 ft) |
| Clearance above | 140 m (460 ft) above reservoir 290 m (950 ft) above original level[1] |
| History | |
| Construction start | January 2020 |
| Opened | 1 February 2024[2] |
| Location | |
Interactive map of Tian'e Longtan Bridge | |
The Tian'e Longtan Bridge (Chinese: 天峨龙滩特大桥) carries the Nantian Expressway over the Hongshui River in the Guangxi Zhuang Autonomous Region in the People's Republic of China.
The Nantian Expressway connects Nandan County and Tian'e County in the prefecture-level city of Hechi.
Opened on 1 February 2024, the motorway bridge crosses the reservoir of the large Longtan Dam, located 6 km downstream, with two closely spaced structures for the two directions of travel, which are only connected at the foundations and by crossbeams in the arches. Each of the two arches has a span of 600 m. It is now the largest arch bridge in the world, ahead of the previous leader, the Pingnan Third Bridge.[2][3][4]
The 2,488.55 m (8,164.5 ft) long and 26 m (85 ft) wide bridge crosses the deep reservoir at a height of 140 m above the highest water level or 290 m above the original river.[1]
Its arches have a skeleton of four parallel steel tubes, which are connected by numerous diagonal and transverse struts like a truss. These arches were erected using the balanced cantilever method by supporting them on piers and temporary masts with multiple stays, and individual prefabricated sections were delivered by a cable crane stretched across the reservoir. After the completion of these steel arches, they were encased in formwork and coated with concrete. Piers made of reinforced concrete stand in front of and on the arches. The deck girders were then erected using the cantilever method from prestressed concrete.[5]
Construction work began in January 2020[6] and was completed in January 2024.[2]
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Bridge under construction (summer 2023). Cantilevered pylons and an overhead cable crane are visible
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A bridge prototype at the nearest expressway exit
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Bridge details
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Bridge details
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The Longtan Dam
See also
References
- ^ a b Sakowski, Eric. "Tian'e Longtan Bridge" (Wiki). HighestBridges.com. Retrieved 29 October 2025.
- ^ a b c "跨径超600米！天峨龙滩特大桥建成通车" [With a span exceeding 600 meters, the Tian'e Longtan Grand Bridge has been completed and opened to traffic]. People's Daily Online (in Chinese). 1 February 2024. Retrieved 28 October 2025.
- ^ Luo, Chao; Zhou, Jianting; Xin, Jingzhou; Fan, Yonghui; Zhou, Yin; Tang, Qizhi; Yang, Jun (2024). "Large-scale model test on the construction process of a stiff skeleton arch bridge with the span of 600 m". Case Studies in Construction Materials. 21 e03783. doi:10.1016/j.cscm.2024.e03783.
- ^ Fan, Yonghui; Zhou, Jianting; Luo, Chao; Yang, Jun; Xin, Jingzhou; Wang, Shaorui (2023). "Research on Loading Scheme for Large-Scale Model Tests of Super-Long-Span Arch Bridge". Buildings. 13 (7). State Key Laboratory of Mountain Bridge and Tunnel Engineering, Chongqing Jiaotong University: 1639. doi:10.3390/buildings13071639.
- ^ Liu, Lifang; Chen, Xin (2025). "Study on the Seismic Performance of Super-Large-Span Concrete Arch Bridges with Embedded Framework". Proceedings of ARCH 2023. Vol. 32. Cham: Springer Nature Switzerland. doi:10.1007/978-3-031-83508-7_45. ISBN 978-3-031-83507-0. Retrieved 2025-05-28.
- ^ "Work begins on record-breaking concrete arch bridge". Bridgeweb.com. 8 January 2020. Retrieved 28 October 2025.
External links
- 天峨龙滩特大桥 at Baidu Baike (in Chinese)