en.Wedoany.com Reported - On May 6, the main structure connection of the 132-meter simply supported steel truss girder of the north approach bridge spanning the levee of the Jingzhou Lijiapu Yangtze River Rail-cum-Road Bridge, constructed by China Railway Group Baqiao (Yangzhou) Co., Ltd., was officially completed. This rail-cum-road bridge is located in Hubei Province, China, and is the first simply supported beam structure with four main trusses in China.
The 132-meter simply supported steel truss girder of the north approach bridge spanning the levee, whose connection was completed this time, was constructed using the piece-by-piece assembly and erection method. The total weight of the steel girder is approximately 6,300 tons, with 10 standard panels, each 13 meters in length. Since the hoisting of the first section began in August 2025, the project team has completed the high-precision installation of 180,000 bolts, achieving a 100% alignment rate for the entire bridge. During the construction process, the technical team utilized BIM 3D digital previews to establish a comprehensive precise construction system. Based on the manufacturing geometry, a digital model was created to simulate the entire process of component manufacturing and installation. Through collision detection and workspace verification, seamless integration between the design and construction phases was achieved. The project department relied on the intelligent production line for steel truss girders and the intelligent production line for plate units to strictly control the hole-making precision of the main truss members and the full-penetration welding quality of the bridge deck. They also adopted an inverted assembly process for the bridge deck panels with post-drilling of crossbeam and longitudinal beam holes, simultaneously improving manufacturing precision and structural fatigue resistance, enabling deviation-free matching between factory manufacturing and on-site bridge connections.
The overall rail-cum-road bridge adopts a (91.5+210+1120+210+91.5) meter cable-stayed and suspension cooperative system bridge scheme, arranged in two levels, and is currently the world's longest-span double-deck cable-stayed and suspension cooperative system bridge. China Railway Group Baqiao (Yangzhou) Co., Ltd. is responsible for the manufacturing, transportation, and integrated bolting and welding tasks on site for the steel main girder of the north main bridge, the steel anchor beams and steel corbels of the main tower, and the 132-meter simply supported steel truss girder of the north approach bridge. The total steel structure engineering quantity is approximately 50,000 tons. As the core control project for the Jingzhou-Yueyang Railway, the G55 Erenhot-Guangzhou Expressway rerouting, and the Jingzhou urban road network, the Jingzhou Lijiapu Yangtze River Rail-cum-Road Bridge is a strategic passage supporting Hubei Province's regional development strategy and promoting Jingzhou's cross-river integrated construction.
This article is compiled by Wedoany. All AI citations must indicate the source as "Wedoany". If there is any infringement or other issues, please notify us promptly, and we will modify or delete it accordingly. Email: news@wedoany.com
