Abstract
ABSTRACTWith a length of 2240 m, this new hybrid cable cable‐stayed bridge have a main span of 1408 m. Like the Brooklyn bridge (New York), the main span is supported on one side by main cables with hangers and on the other part by stay cables. The concrete pylons reach the height of 320 m, while the deck 58 m wide and 5.50 m high bears twice four bands for international road traffic, two lanes of railway and two lateral sidewalks for pedestrians. The third bridge over the Bosporus, called Yavuz Sultan Selim Bridge is located at the North of Istanbul near the black Sea. Exceptionally bridge leads to exceptional loadings. In an area of high seismicity and in view of its length, the bridge must be checked under differential accelerations time histories in each support. Such a bridge is automatically extensively studied under the wind effects on basic data analysis of weather stations and numerous wind tunnel tests to verify its behaviour under dynamic wind gusts and verify the aerodynamic instabilities that could occur both in service and during the construction phases. For road and railway traffic, the response of the bridge depends on the speed of the train; to limit the longitudinal displacements, pendular bearings have been added. The bearings are also very useful under seism.
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