Changjiu High-Speed Railway Ganjiang River Rail-Road Bridge

The Ganjiang Railway and Road Bridge is a double-use railway-road bridge spanning the Ganjiang River in Yangzijiu Town, Nanchang City, Jiangxi Province. It is 19 kilometers long and is a key control project of the Changjiu High-Speed Railway. The bridge adopts a combined railway-road construction mode. The lower layer houses a two-way high-speed railway and a four-lane urban main road, while the upper layer is a two-way eight-lane urban expressway. It spans the Ganjiang River in three parts: the south branch, the middle branch, and the west branch. This bridge has set two world records: the world's largest span bridge with a speed of 350 kilometers per hour for a mixed railway-road structure, and the world's first large-span combined railway-road steel truss section. Among them, the main bridge of the south branch is a concrete cable-stayed bridge with a main span of 240 meters and a tower height of 108 meters, which is the world's largest-span railway bridge with a speed of 350 kilometers per hour with a single-tower concrete beam cable-stayed structure. 

The bridge completed the closure project on January 9, 2025. A total of 4 sets of transverse limiters and 4 sets of transverse limit devices were used. The models and parameters are as follows: