Modal Frequencies and Shapes of Bogazici "Bosporus" Suspension Bridge

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I've created a numerical model of one of the three bridges between European and Asian sides of Istanbul city. Actually, this is the old configuration of the suspension hangers, which was replaced by vertical hangers in 2016. Since I do not have detailed information about the new configuration, I couldn't model it yet. 



Yet, this study includes determination of modal characteristics of the bridge; as soon as I get adequate details (technical drawings, material properties etc.) I am going to implement a modified model and compare old and new configurations.One can find a detailed information on the modal characteristics of this bridge in Apaydin (2010)*.


Lateral + Torsional (0.063 Hz)


Lateral Asymmetric + Torsional (0.065 Hz)


Vertical Asymmetric (0.074 Hz)


Vertical Assymmetric 2 (0.113 Hz)


Lateral Assymetric 2 (0.167 Hz)
* Apaydın, N. M. (2010). Earthquake performance assessment and retrofit investigations of two suspension bridges in Istanbul. Soil Dynamics and Earthquake Engineering, 30(8), 702-710.
BONUS




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