A Risk-Based Multi-Objective Modeling Approach to the Preventive Maintenance Process of Roof Waterproofing System at Airports
This study adopted a mixed research design in order to derive a risk-minimizing preventive maintenance strategy for structural roofing leakage problems. The purpose of this study is to: (a) determine current waterproofing systems and components of concrete roofs at airports, (b) explore frequently u...
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| Format: | masterThesis |
| Published: |
2020
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| Subjects: | |
| Online Access: | http://hdl.handle.net/10725/13534 https://doi.org/10.26756/th.2022.275 http://libraries.lau.edu.lb/research/laur/terms-of-use/thesis.php |
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| _version_ | 1864513467900231680 |
|---|---|
| author | Shehab, Bahaa |
| author_facet | Shehab, Bahaa |
| author_role | author |
| dc.creator.none.fl_str_mv | Shehab, Bahaa |
| dc.date.none.fl_str_mv | 2020 2020-03-27 2022-05-10T10:51:29Z 2022-05-10T10:51:29Z |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10725/13534 https://doi.org/10.26756/th.2022.275 http://libraries.lau.edu.lb/research/laur/terms-of-use/thesis.php |
| dc.language.none.fl_str_mv | en |
| dc.publisher.none.fl_str_mv | Lebanese American University |
| dc.rights.*.fl_str_mv | info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Waterproofing -- Costs Concrete construction -- Mathematical models Airports -- Maintenance and repair Roofs -- Maintenance and repair Lebanese American University -- Dissertations Dissertations, Academic |
| dc.title.none.fl_str_mv | A Risk-Based Multi-Objective Modeling Approach to the Preventive Maintenance Process of Roof Waterproofing System at Airports |
| dc.type.none.fl_str_mv | Thesis info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/masterThesis |
| description | This study adopted a mixed research design in order to derive a risk-minimizing preventive maintenance strategy for structural roofing leakage problems. The purpose of this study is to: (a) determine current waterproofing systems and components of concrete roofs at airports, (b) explore frequently used techniques to design optimal preventive maintenance policies, and (c) derive an optimal preventive multi-objective risk-based maintenance strategy via simulation that can diminish failure costs, thereby decreasing the system’s overall maintenance costs. Unique to the simulation presented in this thesis is the inclusion of external influences on failure probability via a predictive model derived using a random forest machine learning strategy. A case study on a prototype airport serves as the platform to test this simulation methodology. The results of the simulation reveal the prognostic influence of several maintenance strategies on the total risk-based cost of the waterproofing system. These outcomes showed a negative impact on the reduction of the failure-risk costs, and eventually augmented the overall cost. Thus, demonstrating that for assets whose failure is primarily dictated by external factors, a corrective maintenance strategy can be optimal. |
| eu_rights_str_mv | openAccess |
| format | masterThesis |
| id | LAURepo_d51bdea510d6a0db5d693a79fe8a23fe |
| language_invalid_str_mv | en |
| network_acronym_str | LAURepo |
| network_name_str | Lebanese American University repository |
| oai_identifier_str | oai:laur.lau.edu.lb:10725/13534 |
| publishDate | 2020 |
| publisher.none.fl_str_mv | Lebanese American University |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| spelling | A Risk-Based Multi-Objective Modeling Approach to the Preventive Maintenance Process of Roof Waterproofing System at AirportsShehab, BahaaWaterproofing -- CostsConcrete construction -- Mathematical modelsAirports -- Maintenance and repairRoofs -- Maintenance and repairLebanese American University -- DissertationsDissertations, AcademicThis study adopted a mixed research design in order to derive a risk-minimizing preventive maintenance strategy for structural roofing leakage problems. The purpose of this study is to: (a) determine current waterproofing systems and components of concrete roofs at airports, (b) explore frequently used techniques to design optimal preventive maintenance policies, and (c) derive an optimal preventive multi-objective risk-based maintenance strategy via simulation that can diminish failure costs, thereby decreasing the system’s overall maintenance costs. Unique to the simulation presented in this thesis is the inclusion of external influences on failure probability via a predictive model derived using a random forest machine learning strategy. A case study on a prototype airport serves as the platform to test this simulation methodology. The results of the simulation reveal the prognostic influence of several maintenance strategies on the total risk-based cost of the waterproofing system. These outcomes showed a negative impact on the reduction of the failure-risk costs, and eventually augmented the overall cost. Thus, demonstrating that for assets whose failure is primarily dictated by external factors, a corrective maintenance strategy can be optimal.Lebanese American University2022-05-10T10:51:29Z2022-05-10T10:51:29Z20202020-03-27Thesisinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesishttp://hdl.handle.net/10725/13534https://doi.org/10.26756/th.2022.275http://libraries.lau.edu.lb/research/laur/terms-of-use/thesis.phpeninfo:eu-repo/semantics/openAccessoai:laur.lau.edu.lb:10725/135342022-07-07T06:48:53Z |
| spellingShingle | A Risk-Based Multi-Objective Modeling Approach to the Preventive Maintenance Process of Roof Waterproofing System at Airports Shehab, Bahaa Waterproofing -- Costs Concrete construction -- Mathematical models Airports -- Maintenance and repair Roofs -- Maintenance and repair Lebanese American University -- Dissertations Dissertations, Academic |
| status_str | publishedVersion |
| title | A Risk-Based Multi-Objective Modeling Approach to the Preventive Maintenance Process of Roof Waterproofing System at Airports |
| title_full | A Risk-Based Multi-Objective Modeling Approach to the Preventive Maintenance Process of Roof Waterproofing System at Airports |
| title_fullStr | A Risk-Based Multi-Objective Modeling Approach to the Preventive Maintenance Process of Roof Waterproofing System at Airports |
| title_full_unstemmed | A Risk-Based Multi-Objective Modeling Approach to the Preventive Maintenance Process of Roof Waterproofing System at Airports |
| title_short | A Risk-Based Multi-Objective Modeling Approach to the Preventive Maintenance Process of Roof Waterproofing System at Airports |
| title_sort | A Risk-Based Multi-Objective Modeling Approach to the Preventive Maintenance Process of Roof Waterproofing System at Airports |
| topic | Waterproofing -- Costs Concrete construction -- Mathematical models Airports -- Maintenance and repair Roofs -- Maintenance and repair Lebanese American University -- Dissertations Dissertations, Academic |
| url | http://hdl.handle.net/10725/13534 https://doi.org/10.26756/th.2022.275 http://libraries.lau.edu.lb/research/laur/terms-of-use/thesis.php |