Seismic fragility analysis of hunchbacked gravity quay walls using a multi-intensity measure approach
This study investigates the seismic resilience of hunchbacked block-type gravity quay walls with different back-face geometries using the finite element method (FEM). Three hunchbacked block-type quay wall models, identified as QW-I, QW-II, and QW-III, each with a distinct geometrical configuration,...
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Elsevier
2025-06-01
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| Series: | Results in Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590123025007686 |
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| author | Ali Akbar Ehterami Babak Ebrahimian Ali Noorzad |
| author_facet | Ali Akbar Ehterami Babak Ebrahimian Ali Noorzad |
| author_sort | Ali Akbar Ehterami |
| collection | DOAJ |
| description | This study investigates the seismic resilience of hunchbacked block-type gravity quay walls with different back-face geometries using the finite element method (FEM). Three hunchbacked block-type quay wall models, identified as QW-I, QW-II, and QW-III, each with a distinct geometrical configuration, are analyzed. The QW-I model represents the quay wall already built at the Pars Petrochemical Port in Asalouyeh, Iran, and serves as the reference case. Initially, the seismic response of these quay walls is evaluated under a range of seismic loads with varying dynamic characteristics. Subsequently, fragility curves are generated for the three wall configurations based on multiple intensity measures (IMs) to assess their vulnerabilities to seismic events. For this purpose, acceleration time histories derived from real earthquake records are utilized, with fragility assessments conducted using the incremental dynamic analysis (IDA) approach. The generated fragility curves demonstrate that increasing the hunch height from 3 m in QW-I to 5 m in QW-II and 6 m in QW-III significantly reduces the probability of exceeding the repairable damage level and reaching near collapse for a peak ground acceleration (PGA) of 0.51 g, comparable to that of the 1990 Manjil earthquake. Specifically, this probability decreases from 69.49 % for QW-I to 55.99 % for QW-II and 49.51 % for QW-III. Correspondingly, based on the cumulative absolute velocity (CAV) indicator, the exceedance probability drops from 21.75 % for QW-I to 11.22 % for QW-II and 7.88 % for QW-III. Therefore, the interpretation of seismic vulnerability and associated failure probabilities can vary depending on the chosen IM for fragility analysis, emphasizing the necessity for developing multi-valued fragility curves. |
| format | Article |
| id | doaj-art-c72d49bf1e6c4f29a17607b80d04fe02 |
| institution | Kabale University |
| issn | 2590-1230 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Engineering |
| spelling | doaj-art-c72d49bf1e6c4f29a17607b80d04fe022025-08-20T03:42:29ZengElsevierResults in Engineering2590-12302025-06-012610469110.1016/j.rineng.2025.104691Seismic fragility analysis of hunchbacked gravity quay walls using a multi-intensity measure approachAli Akbar Ehterami0Babak Ebrahimian1Ali Noorzad2Faculty of Civil, Water and Environmental Engineering, Shahid Beheshti University (SBU), Tehran, IranCorresponding author.; Faculty of Civil, Water and Environmental Engineering, Shahid Beheshti University (SBU), Tehran, IranFaculty of Civil, Water and Environmental Engineering, Shahid Beheshti University (SBU), Tehran, IranThis study investigates the seismic resilience of hunchbacked block-type gravity quay walls with different back-face geometries using the finite element method (FEM). Three hunchbacked block-type quay wall models, identified as QW-I, QW-II, and QW-III, each with a distinct geometrical configuration, are analyzed. The QW-I model represents the quay wall already built at the Pars Petrochemical Port in Asalouyeh, Iran, and serves as the reference case. Initially, the seismic response of these quay walls is evaluated under a range of seismic loads with varying dynamic characteristics. Subsequently, fragility curves are generated for the three wall configurations based on multiple intensity measures (IMs) to assess their vulnerabilities to seismic events. For this purpose, acceleration time histories derived from real earthquake records are utilized, with fragility assessments conducted using the incremental dynamic analysis (IDA) approach. The generated fragility curves demonstrate that increasing the hunch height from 3 m in QW-I to 5 m in QW-II and 6 m in QW-III significantly reduces the probability of exceeding the repairable damage level and reaching near collapse for a peak ground acceleration (PGA) of 0.51 g, comparable to that of the 1990 Manjil earthquake. Specifically, this probability decreases from 69.49 % for QW-I to 55.99 % for QW-II and 49.51 % for QW-III. Correspondingly, based on the cumulative absolute velocity (CAV) indicator, the exceedance probability drops from 21.75 % for QW-I to 11.22 % for QW-II and 7.88 % for QW-III. Therefore, the interpretation of seismic vulnerability and associated failure probabilities can vary depending on the chosen IM for fragility analysis, emphasizing the necessity for developing multi-valued fragility curves.http://www.sciencedirect.com/science/article/pii/S2590123025007686Hunchbacked quay wallSeismic vulnerabilityMulti-valued fragility curvePerformance-based designSeismic resiliencePars petrochemical port |
| spellingShingle | Ali Akbar Ehterami Babak Ebrahimian Ali Noorzad Seismic fragility analysis of hunchbacked gravity quay walls using a multi-intensity measure approach Results in Engineering Hunchbacked quay wall Seismic vulnerability Multi-valued fragility curve Performance-based design Seismic resilience Pars petrochemical port |
| title | Seismic fragility analysis of hunchbacked gravity quay walls using a multi-intensity measure approach |
| title_full | Seismic fragility analysis of hunchbacked gravity quay walls using a multi-intensity measure approach |
| title_fullStr | Seismic fragility analysis of hunchbacked gravity quay walls using a multi-intensity measure approach |
| title_full_unstemmed | Seismic fragility analysis of hunchbacked gravity quay walls using a multi-intensity measure approach |
| title_short | Seismic fragility analysis of hunchbacked gravity quay walls using a multi-intensity measure approach |
| title_sort | seismic fragility analysis of hunchbacked gravity quay walls using a multi intensity measure approach |
| topic | Hunchbacked quay wall Seismic vulnerability Multi-valued fragility curve Performance-based design Seismic resilience Pars petrochemical port |
| url | http://www.sciencedirect.com/science/article/pii/S2590123025007686 |
| work_keys_str_mv | AT aliakbarehterami seismicfragilityanalysisofhunchbackedgravityquaywallsusingamultiintensitymeasureapproach AT babakebrahimian seismicfragilityanalysisofhunchbackedgravityquaywallsusingamultiintensitymeasureapproach AT alinoorzad seismicfragilityanalysisofhunchbackedgravityquaywallsusingamultiintensitymeasureapproach |