Multi-Scale Integrated Corrosion-Adjusted Seismic Fragility Framework for Critical Infrastructure Resilience
This study presents a novel framework for integrating corrosion effects into critical infrastructure seismic risk assessment, focusing on reinforced concrete (RC) structures. Unlike traditional seismic fragility curves, which often overlook time-dependent degradation such as corrosion, this methodol...
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MDPI AG
2024-09-01
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| Online Access: | https://www.mdpi.com/2076-3417/14/19/8789 |
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| author | Alon Urlainis Gili Lifshitz Sherzer Igal M. Shohet |
| author_facet | Alon Urlainis Gili Lifshitz Sherzer Igal M. Shohet |
| author_sort | Alon Urlainis |
| collection | DOAJ |
| description | This study presents a novel framework for integrating corrosion effects into critical infrastructure seismic risk assessment, focusing on reinforced concrete (RC) structures. Unlike traditional seismic fragility curves, which often overlook time-dependent degradation such as corrosion, this methodology introduces an approach incorporating corrosion-induced degradation into seismic fragility curves. This framework combines time-dependent corrosion simulation with numerical modeling, using the finite–discrete element method (FDEM) to assess the reduction in structural capacity. These results are used to adjust the seismic fragility curves, capturing the increased vulnerability due to corrosion. A key novelty of this work is the development of a comprehensive risk assessment that merges the corrosion-adjusted fragility curves with seismic hazard data to estimate long-term seismic risk, introducing a cumulative risk ratio to quantify the total risk over the structure’s lifecycle. This framework is demonstrated through a case study of a one-story RC moment frame building, evaluating its seismic risk under various corrosion scenarios and locations. The simulation results showed a good fit, with a 3% to 14% difference between the case study and simulations up to 75 years. This fitness highlights the model’s accuracy in predicting structural degradation due to corrosion. Furthermore, the findings reveal a significant increase in seismic risk, particularly in moderate and intensive corrosion environments, by 59% and 100%, respectively. These insights emphasize the critical importance of incorporating corrosion effects into seismic risk assessments, offering a more accurate and effective strategy to enhance infrastructure resilience throughout its lifecycle. |
| format | Article |
| id | doaj-art-de2fbf8abcb24722b3dae10e66f35b13 |
| institution | OA Journals |
| issn | 2076-3417 |
| language | English |
| publishDate | 2024-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-de2fbf8abcb24722b3dae10e66f35b132025-08-20T01:47:41ZengMDPI AGApplied Sciences2076-34172024-09-011419878910.3390/app14198789Multi-Scale Integrated Corrosion-Adjusted Seismic Fragility Framework for Critical Infrastructure ResilienceAlon Urlainis0Gili Lifshitz Sherzer1Igal M. Shohet2Department of Civil Engineering, Ariel University, Ariel 40700, IsraelDepartment of Civil Engineering, Ariel University, Ariel 40700, IsraelDepartment of Civil and Environmental Engineering, Ben-Gurion University of the Negev, P.O. Box 653, Beer Sheva 84105, IsraelThis study presents a novel framework for integrating corrosion effects into critical infrastructure seismic risk assessment, focusing on reinforced concrete (RC) structures. Unlike traditional seismic fragility curves, which often overlook time-dependent degradation such as corrosion, this methodology introduces an approach incorporating corrosion-induced degradation into seismic fragility curves. This framework combines time-dependent corrosion simulation with numerical modeling, using the finite–discrete element method (FDEM) to assess the reduction in structural capacity. These results are used to adjust the seismic fragility curves, capturing the increased vulnerability due to corrosion. A key novelty of this work is the development of a comprehensive risk assessment that merges the corrosion-adjusted fragility curves with seismic hazard data to estimate long-term seismic risk, introducing a cumulative risk ratio to quantify the total risk over the structure’s lifecycle. This framework is demonstrated through a case study of a one-story RC moment frame building, evaluating its seismic risk under various corrosion scenarios and locations. The simulation results showed a good fit, with a 3% to 14% difference between the case study and simulations up to 75 years. This fitness highlights the model’s accuracy in predicting structural degradation due to corrosion. Furthermore, the findings reveal a significant increase in seismic risk, particularly in moderate and intensive corrosion environments, by 59% and 100%, respectively. These insights emphasize the critical importance of incorporating corrosion effects into seismic risk assessments, offering a more accurate and effective strategy to enhance infrastructure resilience throughout its lifecycle.https://www.mdpi.com/2076-3417/14/19/8789corrosioncritical infrastructurefinite–discrete element method (FDEM)fragility curvesreinforced concreteseismic risk assessment |
| spellingShingle | Alon Urlainis Gili Lifshitz Sherzer Igal M. Shohet Multi-Scale Integrated Corrosion-Adjusted Seismic Fragility Framework for Critical Infrastructure Resilience Applied Sciences corrosion critical infrastructure finite–discrete element method (FDEM) fragility curves reinforced concrete seismic risk assessment |
| title | Multi-Scale Integrated Corrosion-Adjusted Seismic Fragility Framework for Critical Infrastructure Resilience |
| title_full | Multi-Scale Integrated Corrosion-Adjusted Seismic Fragility Framework for Critical Infrastructure Resilience |
| title_fullStr | Multi-Scale Integrated Corrosion-Adjusted Seismic Fragility Framework for Critical Infrastructure Resilience |
| title_full_unstemmed | Multi-Scale Integrated Corrosion-Adjusted Seismic Fragility Framework for Critical Infrastructure Resilience |
| title_short | Multi-Scale Integrated Corrosion-Adjusted Seismic Fragility Framework for Critical Infrastructure Resilience |
| title_sort | multi scale integrated corrosion adjusted seismic fragility framework for critical infrastructure resilience |
| topic | corrosion critical infrastructure finite–discrete element method (FDEM) fragility curves reinforced concrete seismic risk assessment |
| url | https://www.mdpi.com/2076-3417/14/19/8789 |
| work_keys_str_mv | AT alonurlainis multiscaleintegratedcorrosionadjustedseismicfragilityframeworkforcriticalinfrastructureresilience AT gililifshitzsherzer multiscaleintegratedcorrosionadjustedseismicfragilityframeworkforcriticalinfrastructureresilience AT igalmshohet multiscaleintegratedcorrosionadjustedseismicfragilityframeworkforcriticalinfrastructureresilience |