Mitigation of Scour Failure Risk of a River Bridge Located in an Ungauged Basin
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...
Saved in:
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Riga Technical University Press
2021-03-01
|
| Series: | The Baltic Journal of Road and Bridge Engineering |
| Subjects: | |
| Online Access: | https://bjrbe-journals.rtu.lv/article/view/4639 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1846143962069336064 |
|---|---|
| author | Hüseyin Akay |
| author_facet | Hüseyin Akay |
| author_sort | Hüseyin Akay |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-ab1bbac0707a4946bc18ee9078b64573 |
| institution | Kabale University |
| issn | 1822-427X 1822-4288 |
| language | English |
| publishDate | 2021-03-01 |
| publisher | Riga Technical University Press |
| record_format | Article |
| series | The Baltic Journal of Road and Bridge Engineering |
| spelling | doaj-art-ab1bbac0707a4946bc18ee9078b645732024-12-02T09:32:33ZengRiga Technical University PressThe Baltic Journal of Road and Bridge Engineering1822-427X1822-42882021-03-01161375610.7250/bjrbe.2021-16.5142504Mitigation of Scour Failure Risk of a River Bridge Located in an Ungauged BasinHüseyin Akay0Civil Engineering Department, Gazi University, Ankara, TurkeyIn 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.https://bjrbe-journals.rtu.lv/article/view/4639giuhhyriskscour criticalityungauged basinwaterway adequacywestern black sea basin |
| spellingShingle | Hüseyin Akay Mitigation of Scour Failure Risk of a River Bridge Located in an Ungauged Basin The Baltic Journal of Road and Bridge Engineering giuh hyrisk scour criticality ungauged basin waterway adequacy western black sea basin |
| title | Mitigation of Scour Failure Risk of a River Bridge Located in an Ungauged Basin |
| title_full | Mitigation of Scour Failure Risk of a River Bridge Located in an Ungauged Basin |
| title_fullStr | Mitigation of Scour Failure Risk of a River Bridge Located in an Ungauged Basin |
| title_full_unstemmed | Mitigation of Scour Failure Risk of a River Bridge Located in an Ungauged Basin |
| title_short | Mitigation of Scour Failure Risk of a River Bridge Located in an Ungauged Basin |
| title_sort | mitigation of scour failure risk of a river bridge located in an ungauged basin |
| topic | giuh hyrisk scour criticality ungauged basin waterway adequacy western black sea basin |
| url | https://bjrbe-journals.rtu.lv/article/view/4639 |
| work_keys_str_mv | AT huseyinakay mitigationofscourfailureriskofariverbridgelocatedinanungaugedbasin |