Abstract
In this study, scour failure risk of the Çatalzeytin Bridge located in the Western Black Sea Basin, Turkey, was assessed for possible future flood events and appropriate scour countermeasures were considered based on economic and constructability considerations. Waterway adequacy in the spans of the bridge and scour criticality around bridge foundations considered for risk calculations in HYRISK were estimated by hydrological and hydraulic analyses of the watershed and stream. Since the watershed of the bridge is ungauged, geomorphological instantaneous unit hydrograph concept was adopted to estimate the peak discharges with various return periods to be used in hydraulic modelling. Monte Carlo simulation results indicated that most of the simulated peak discharges were in the 95% confidence interval. Hydraulic model results from HECRAS indicated that waterway adequacy and scour criticality were critical for discharges with 200 and 500-year return periods. Scour failure risk of the Çatalzeytin Bridge was classified as high and it was proposed to reduce the risk by constructing partially grouted riprap as the most feasible alternative that would consequently increase the expected lifespan of the bridge. Following this methodology, river bridges may be prioritized based on the risk analysis.
Funder
Türkiye Cumhuriyeti Disisleri Bakanligi
Publisher
Riga Technical University
Subject
Building and Construction,Civil and Structural Engineering
Reference27 articles.
1. Akay, H. (2019). Akım Ölçümü Olmayan Akarsular Üzerinde Yer Alan Köprülerin Göçme Riskinin Değerlendirilmesi. In Proceedings of the 4. Köprüler ve Viyadükler Sempozyumu (pp. 28–29). Turkey, Ankara. (in Turkish).
2. Akay, H., & Baduna Koçyiğit, M. (2020). Hydrologic Assessment Approach for River Bridges in Western Black Sea Basin, Turkey. Journal of Performance of Constructed Facilities, 34(1), 04019090. https://doi.org/10.1061/(ASCE)CF.1943-5509.0001372
3. Akay, H., Baduna Koçyiğit, M., & Yanmaz, A. M. (2018). Effect of Using Multiple Stream Gauging Stations on Calibration of Hydrologic Parameters and Estimation of Hydrograph of Ungauged Neighboring Basin. Arabian Journal of Geosciences, 11(11), 282. https://doi.org/10.1007/s12517-018-3642-z
4. Akay, H., Baduna Kocyigit, M., & Yanmaz, A. M. (2019). Development of a Safety-Inspection Method for River Bridges in Turkey. Water, 11(9), 1902. https://doi.org/10.3390/w11091902
5. Baduna Koçyiğit, M., & Akay, H. (2018). Estimation of Potential Flash Flood Risk in a Basin Using Morphometric Parameters: A Case Study of Akçay Basin. Journal of the Faculty of Engineering and Architecture of Gazi University, 33(4), 1321–1332. https://doi.org/10.17341/gazimmfd.416429
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