Yavuz Sultan Selim bridge, third Bosphorus bridge
Suspension bridge with a main span of 1,408 m and total length 2,408 m, located to the north of Istanbul near the Black sea.
Like the Brooklyn Bridge, the main span is partially suspended from the pylons by stay cables and from the main cables by vertical hangers. The pylons rise to a height of 320 m and comprise 2 concrete shafts (77,000 tons).
The deck is 5.50 m high and 58 m wide with 4 road lanes in each direction, 2 railways tracks and 2 pedestrian walkways.
In the central span, there is a steel box deck with orthotropic plating (45,000 tons). In the side spans, the deck is of concrete.
The preliminary design is the result of a competition won by Michel Virlogeux (France) and Jean-François Klein (Switzerland). The final design is by T-Ingénierie (Switzerland) and Bureau Greisch (Belgium) on behalf of the joint venture Içtas and Astaldi S.P.a.
- overall calculations for the structure in service,
- proposals for construction methods,
- drawings of the steel deck of the main span,
- design of the steel deck in the main span,
- dynamic studies for verifying the behaviour of the structure:
- under wind loads (during the construction stages and in service) – verifications by means of numerical simulations and wind tunnel tests),
- railway loads,
- earthquake loads.