Analytical Fragility Curves for Ordinary Highway Bridges in Turkey

Date

2011-11-01

Author

AVŞAR, ÖZGÜR
Yakut, Ahmet
Caner, Alp

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This study focuses on the development of analytical fragility curves for the ordinary highway bridges constructed after the 1990s. Four major bridge classes were employed based on skew angle, number of columns per bent, and span number (only multispan bridges). Nonlinear response-history analyses (NRHA) were conducted for each bridge sample using a detailed 3-D analytical model subjected to earthquake ground motions of varying seismic intensities. A component-based approach that uses several engineering demand parameters was employed to determine the seismic response of critical bridge components. Corresponding damage limit states were defined either in terms of member capacities or excessive bearing displacements. Lognormal fragility curves were obtained by curve fitting the point estimates of the probability of exceeding each specified damage limit state for each major bridge class. Bridges with larger skew angles or single-column bents were found to be the most seismically vulnerable. [DOI: 10.1193/1.3651349]

Subject Keywords

Geotechnical Engineering and Engineering Geology, Geophysics

URI

https://hdl.handle.net/11511/36011

Journal

EARTHQUAKE SPECTRA

DOI

https://doi.org/10.1193/1.3651349

Collections

Department of Civil Engineering, Article

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Citation Formats

Ö. AVŞAR, A. Yakut, and A. Caner, “Analytical Fragility Curves for Ordinary Highway Bridges in Turkey,” EARTHQUAKE SPECTRA, pp. 971–996, 2011, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/36011.