Academic Journal
Dynamic measurements to assess stress levels on buried hydraulic structures.
| Τίτλος: | Dynamic measurements to assess stress levels on buried hydraulic structures. |
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| Συγγραφείς: | Anwar, A. M., Hashad, A. S., Omar, M. |
| Πηγή: | Water Science; Dec2024, Vol. 38 Issue 1, p21-32, 12p |
| Θεματικοί όροι: | Strains & stresses (Mechanics), Hydraulic structures, Computer simulation, Masonry testing, Structural design, Mechanical vibration research, Modal analysis, Structural analysis (Engineering) |
| Περίληψη: | Old masonry structures have a very special nature that require periodical inspection and evaluation programs. The problem becomes more sophisticated when dealing with vital buried hydraulic structures under continuous functional operation while bearing additional loads from running public services such as railways. This could add extra challenges for determining their structural performance and engineering characteristics if conventional methods are used. Moreover, traditional methods are sometimes costly, time consuming, and can lead to some damage to the structure. The importance of the current research is therefore providing a rapid methodology for evaluating these structures to confirm their current ability to resist operating loads safely, especially when subjected to aging. In this study, the evaluation depends mainly on analyzing the vibration acceleration response of a structure under dynamic loads. Insight into system identification using formal modal analysis was also conducted. Simultaneously, calibrated numerical model was then adopted to predict the expected level of internal stresses. An old masonry irrigation intake buried culvert underneath the main railway lines was selected for examination. The structure was firstly plugged from both sides and emptied, site inspection as well as core sampling of construction materials were conducted. Vibration time history was recorded due to train passage with different speeds. The filed measurements along with mathematical model were used to estimate the level of stresses among the structure. The results showed the ability of the proposed method to evaluate structures in an easy and rapid fashion compared to traditional methods without stopping serviceability of the structure. [ABSTRACT FROM AUTHOR] |
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| Βάση Δεδομένων: | Complementary Index |
| FullText | Text: Availability: 0 CustomLinks: – Url: https://www.doi.org/10.1080/23570008.2023.2295046? Name: ScienceDirect (all content) (s7799221) Category: fullText Text: View record from ScienceDirect MouseOverText: View record from ScienceDirect |
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| Items | – Name: Title Label: Title Group: Ti Data: Dynamic measurements to assess stress levels on buried hydraulic structures. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Anwar%2C+A%2E+M%2E%22">Anwar, A. M.</searchLink><br /><searchLink fieldCode="AR" term="%22Hashad%2C+A%2E+S%2E%22">Hashad, A. S.</searchLink><br /><searchLink fieldCode="AR" term="%22Omar%2C+M%2E%22">Omar, M.</searchLink> – Name: TitleSource Label: Source Group: Src Data: Water Science; Dec2024, Vol. 38 Issue 1, p21-32, 12p – Name: Subject Label: Subject Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Strains+%26+stresses+%28Mechanics%29%22">Strains & stresses (Mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Hydraulic+structures%22">Hydraulic structures</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+simulation%22">Computer simulation</searchLink><br /><searchLink fieldCode="DE" term="%22Masonry+testing%22">Masonry testing</searchLink><br /><searchLink fieldCode="DE" term="%22Structural+design%22">Structural design</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+vibration+research%22">Mechanical vibration research</searchLink><br /><searchLink fieldCode="DE" term="%22Modal+analysis%22">Modal analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Structural+analysis+%28Engineering%29%22">Structural analysis (Engineering)</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Old masonry structures have a very special nature that require periodical inspection and evaluation programs. The problem becomes more sophisticated when dealing with vital buried hydraulic structures under continuous functional operation while bearing additional loads from running public services such as railways. This could add extra challenges for determining their structural performance and engineering characteristics if conventional methods are used. Moreover, traditional methods are sometimes costly, time consuming, and can lead to some damage to the structure. The importance of the current research is therefore providing a rapid methodology for evaluating these structures to confirm their current ability to resist operating loads safely, especially when subjected to aging. In this study, the evaluation depends mainly on analyzing the vibration acceleration response of a structure under dynamic loads. Insight into system identification using formal modal analysis was also conducted. Simultaneously, calibrated numerical model was then adopted to predict the expected level of internal stresses. An old masonry irrigation intake buried culvert underneath the main railway lines was selected for examination. The structure was firstly plugged from both sides and emptied, site inspection as well as core sampling of construction materials were conducted. Vibration time history was recorded due to train passage with different speeds. The filed measurements along with mathematical model were used to estimate the level of stresses among the structure. The results showed the ability of the proposed method to evaluate structures in an easy and rapid fashion compared to traditional methods without stopping serviceability of the structure. [ABSTRACT FROM AUTHOR] – Name: Abstract Label: Group: Ab Data: <i>Copyright of Water Science is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1080/23570008.2023.2295046 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 12 StartPage: 21 Subjects: – SubjectFull: Strains & stresses (Mechanics) Type: general – SubjectFull: Hydraulic structures Type: general – SubjectFull: Computer simulation Type: general – SubjectFull: Masonry testing Type: general – SubjectFull: Structural design Type: general – SubjectFull: Mechanical vibration research Type: general – SubjectFull: Modal analysis Type: general – SubjectFull: Structural analysis (Engineering) Type: general Titles: – TitleFull: Dynamic measurements to assess stress levels on buried hydraulic structures. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Anwar, A. M. – PersonEntity: Name: NameFull: Hashad, A. S. – PersonEntity: Name: NameFull: Omar, M. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 12 Text: Dec2024 Type: published Y: 2024 Identifiers: – Type: issn-print Value: 11104929 Numbering: – Type: volume Value: 38 – Type: issue Value: 1 Titles: – TitleFull: Water Science Type: main |
| ResultId | 1 |