Evaluering
Design of cable stayed bridge
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 staycable 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.