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Sorok Bridge—Standard for an Economical Suspension Bridge

Abstract The Sorok Bridge is believed to represent the best solution for the construction of a cost-effective suspension bridge for several reasons. First, in the construction of the foundation, a decrease in the self-weight of the concrete open caissons due to their buoyancy allowed a reduction in the capacity of the floating crane when the caissons were fabricated on a floating dock and submerged into the sea. Second, the diamond shape of the pylons minimized the scale of the foundation and increased the transverse resistance against wind and earthquake loads. During their installation, the automatic climbing system was used for the complicated pylon geometry. Third, a trapezoidal steel box girder with a steel deck is more economical than other types in terms of the amount of steel needed; it could be erected using the large-block installation method because steel was used for the girder. Finally, the main cable was installed by the prefabricated parallel wire strand method without a hauling system, thus eliminating the cost of such a system and producing significant cost savings.