Queen Elizabeth The II Bridge

Service Description

The advanced state-of-the-art design includes two outer H-frame suspension pylons that hold curved main cables and vertical hangers supporting the edges of the deck, along with a central A-pylon that has stay cables arranged like a harp and connected to a middle spine. The truss deck runs through all pylon portals, providing high torsional rigidity and uninterrupted geometry. Pylon heights (≈160–230 m), wide suspended spans (≈1.6–1.8 km), and mixed axial-bending–shear load paths are analysed to demonstrate improved stiffness, reduced central-span deflection, aerodynamic resilience, and optimised force distribution across the hybrid system. This approach offers a structurally robust, architecturally expressive solution for major deep-water and estuarine crossings.