Construction Techniques for the Wuhekou Cable-Stayed Bridge

The Wuhekou Cable-Stayed Bridge has a central span of 370m, which features two towers, two cable planes, and a floated deck system. The 38.6m monolithic deck structure is the widest in China. The standard deck section is a fully pre-stressed concrete box girder, which is strengthened by spaced cross beams and longitudinal stringers, providing enough bending and torsion stiffness for this wide long-span girder. The deck was constructed using a balanced cantilever method with specially designed travelers, supported with a cable on each cycle during casting. Epoxy coated parallel strands and high performance concrete were used to improve the bridge's durability.