Changsha South Bus Station Ramp Bridge Project
The steel structure portion of the project weighs approximately 2,500 tons, with the main material for the steel box girders being Q345qD steel. The project consists of two ramp bridges, one to the north and one to the south, with a total length of 716.834 meters and a bridge width of 8.5 meters. The structure features two single-chamber steel-concrete composite box girders, with the steel box girders adopting an open-section design. The ramps are designed with double-curved arcs, and the joints are fully assembled with high-strength bolts, with no welding used in the entire bridge. The project is located on the most important traffic route of the Changsha South Bus Station, which handles heavy traffic flow.