Fragility analysis of concrete elevated water tanks under seismic loads
The design of concrete elevated water tanks involves several kinds of uncertainties. Traditionally, the design of these structures is based on a deterministic analysis. Partial safety factors prescribed in design codes are applied to take into account these uncertainties and to ensure sufficiently s...
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| Format: | Article |
| Language: | English |
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Gruppo Italiano Frattura
2021-07-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | https://www.fracturae.com/index.php/fis/article/view/3056/3296 |
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| _version_ | 1841562288347152384 |
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| author | Amar Aliche Hocine Hammoum Karima Bouzelha Younes Aoues Ouali Amiri Youcef Mehani |
| author_facet | Amar Aliche Hocine Hammoum Karima Bouzelha Younes Aoues Ouali Amiri Youcef Mehani |
| author_sort | Amar Aliche |
| collection | DOAJ |
| description | The design of concrete elevated water tanks involves several kinds of uncertainties. Traditionally, the design of these structures is based on a deterministic analysis. Partial safety factors prescribed in design codes are applied to take into account these uncertainties and to ensure sufficiently safe design. However, this approach does not allow rational evaluation of the risk related to the structural failure and consequently its reliability. In fact, the partial safety factors can lead to over-designed structures; or to under designed structural components leading to a lack of structural robustness. In this study, a probabilistic approach based on Monte Carlo simulations is used to analyze the reliability of elevated water tanks submitted to hazard seismic loading. This reliability approach takes into account mainly two parameters. Firstly, the hydraulic charge in the tank container which is a function of time, and secondly, the hazard seismic loading through the Peak Ground Acceleration is considered as a random variable. Fragility curves depending on seismic zones and soil types are obtained by using the probabilistic approach, where they demonstrate the dominant failure modes that can cause the structural failure with respect to different seismic levels, soil types and water height level in the tank container |
| format | Article |
| id | doaj-art-0d1fd624399d4b098ef3ea5b479558aa |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2021-07-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-0d1fd624399d4b098ef3ea5b479558aa2025-01-03T01:03:05ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932021-07-0115579311310.3221/IGF-ESIS.57.0910.3221/IGF-ESIS.57.09Fragility analysis of concrete elevated water tanks under seismic loadsAmar AlicheHocine HammoumKarima BouzelhaYounes AouesOuali AmiriYoucef MehaniThe design of concrete elevated water tanks involves several kinds of uncertainties. Traditionally, the design of these structures is based on a deterministic analysis. Partial safety factors prescribed in design codes are applied to take into account these uncertainties and to ensure sufficiently safe design. However, this approach does not allow rational evaluation of the risk related to the structural failure and consequently its reliability. In fact, the partial safety factors can lead to over-designed structures; or to under designed structural components leading to a lack of structural robustness. In this study, a probabilistic approach based on Monte Carlo simulations is used to analyze the reliability of elevated water tanks submitted to hazard seismic loading. This reliability approach takes into account mainly two parameters. Firstly, the hydraulic charge in the tank container which is a function of time, and secondly, the hazard seismic loading through the Peak Ground Acceleration is considered as a random variable. Fragility curves depending on seismic zones and soil types are obtained by using the probabilistic approach, where they demonstrate the dominant failure modes that can cause the structural failure with respect to different seismic levels, soil types and water height level in the tank containerhttps://www.fracturae.com/index.php/fis/article/view/3056/3296reliabilityseismic accelerationhydraulic loadfailureconcrete elevated tanks |
| spellingShingle | Amar Aliche Hocine Hammoum Karima Bouzelha Younes Aoues Ouali Amiri Youcef Mehani Fragility analysis of concrete elevated water tanks under seismic loads Fracture and Structural Integrity reliability seismic acceleration hydraulic load failure concrete elevated tanks |
| title | Fragility analysis of concrete elevated water tanks under seismic loads |
| title_full | Fragility analysis of concrete elevated water tanks under seismic loads |
| title_fullStr | Fragility analysis of concrete elevated water tanks under seismic loads |
| title_full_unstemmed | Fragility analysis of concrete elevated water tanks under seismic loads |
| title_short | Fragility analysis of concrete elevated water tanks under seismic loads |
| title_sort | fragility analysis of concrete elevated water tanks under seismic loads |
| topic | reliability seismic acceleration hydraulic load failure concrete elevated tanks |
| url | https://www.fracturae.com/index.php/fis/article/view/3056/3296 |
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