Spanning 292m across the Youshui river valley, this high-speed railway bridge is the world's longest-span asymmetric arch bridge. It features a deck-type concrete-filled steel tube (CFST) arch structure. As a landmark for the 2200-year-old ancient town in the Xiangxi region its design is based on imagination and innovation and exists in harmony with the beautiful natural environment.
With the topography, geology, and existing road conditions fully considered, this bridge is designed with an innovative large-span concrete-filled steel tube trussed arch, providing safety and comfort for high-speed train rides. Representing an important milestone in the history of bridge engineering in China, it exemplifies the construction of high-speed railway arch bridges in mountainous areas.
The arch feet were carefully placed to avoid unnecessary construction infrastructure and to also protect the natural environment, while the erection process involved an impressive catenary hoist system.