Abstract
The innovative bridge design discussed in this paper is a long-span curved cable-stayed bridge with a single canted tower. The superstructure of the bridge consists of a multicell steel box girder with composite concrete-steel deck. The single tower of the bridge is a multicell steel box with the core cell dedicated to the service elevator and stairs. The outer cells of the single tower are filled with high-strength concrete to provide strength and stiffness in a composite action. The foundation of the main single tower is a solid footing embedded in the rock. Inelastic time-history analyses were conducted to complete the seismic design and establish expected seismic performance. After a description of the architectural design, seismological, geotechnical, and structural design aspects are discussed, and a summary of seismic design and expected seismic response of the curved cable-stayed bridge concept is presented.
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