Which bridge type relies on inclined cables radiating from towers to the deck?

• A. Suspension Bridge
• B. Arch Bridge
• C. Cantilever Bridge
• D. Cable-Stayed Bridges

Answer: (D)

The main idea is how load is carried in a cable-stayed bridge. In this type, inclined cables are attached directly from the tops of towers to the deck, radiating outward in a fan or harp pattern. The deck is supported by these cables in tension, so the forces flow straight from the deck up through the cables to the towers, with the towers taking compression and the foundations resisting the horizontal thrust. This direct cable-to-deck arrangement creates a strong, stiff load path and is efficient for medium to long spans.

This differs from a suspension bridge, where main cables run over towers and hangers drop vertically to the deck, creating a different load path. An arch bridge carries loads primarily through compression in the curved arch, while a cantilever bridge relies on projecting arms and counterweights rather than radiating cables.