Design of cable stayed bridge
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The cable-stayed part of the Bjørnafjorden bridge is well within span-lengths of conventional cable-stayed bridges. Untraditional features as in-length inclination of the tower, and grouping of cables makes the design more challenging, but has advantages in a smoother stiffness transition to the floating bridge and esthetics. This report aims to reduce the technological and economical risk regarding the stay-cable bridge part, and the conclusion is that the solution is robust and flexible for further changes in design. Detailed design of well-known components is kept to the minimum without introducing higher risk to the project.