Multiple-support seismic response of Bosporus Suspension Bridge for various random vibration methods

This paper presents a study about the spatial variability effects of ground motions on the dynamic behavior of a suspension bridge by a random vibration based spectral analysis approach and two response spectrum methods. Bosphorus Suspension Bridge built in Turkey and connects Europe to Asia in Ista...

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Bibliographic Details
Published in:Case studies in structural engineering 2016-06, Vol.5, p.54-67
Main Authors: Adanur, Süleyman, Altunişik, Ahmet Can, Soyluk, Kurtuluş, Bayraktar, Alemdar, Dumanoğlu, A. Aydın
Format: Article
Language:English
Subjects:
Bosporus bridge
Multiple support response spectrum method
Random vibration analysis
Spatially varying ground motion
Spectral analysis
Suspension bridge
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Summary:This paper presents a study about the spatial variability effects of ground motions on the dynamic behavior of a suspension bridge by a random vibration based spectral analysis approach and two response spectrum methods. Bosphorus Suspension Bridge built in Turkey and connects Europe to Asia in Istanbul is selected as a numerical example. The spatial variability of ground motions between the support points is taken into account with a coherency function that characterizes the incoherence, wave-passage and site-response effects. Power spectral density function and response spectrum values used in random vibration analyses are determined depending on the recordings of August 17, 1999, Kocaeli, Turkey earthquake. From the results, it can be observed that the structural responses for each random vibration analysis depend largely on the intensity and frequency contents of power spectral density functions.
ISSN:2214-3998
2214-3998
DOI:10.1016/j.csse.2016.04.001