Time-variant probabilistic random degradation model on flexural capacity of road tunnel linings.
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| Title: | Time-variant probabilistic random degradation model on flexural capacity of road tunnel linings. |
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| Authors: | Han, Xingbo1 (AUTHOR), Gao, Kang2 (AUTHOR), Ye, Fei1 (AUTHOR), Han, Xin1 (AUTHOR) |
| Source: | Structure & Infrastructure Engineering: Maintenance, Management, Life-Cycle Design & Performance. Sep2021, Vol. 17 Issue 9, p1175-1193. 19p. |
| Subjects: | Tunnel lining, Tunnels, Gaussian distribution, Blood group incompatibility, Simulation methods & models, Bond strengths |
| Abstract: | A time-variant random degradation model for assessing the flexural capacity of tunnel lining is proposed. By using the double reinforced beam model, the governing equation of moment capacity for tunnel lining is established with the consideration of the reduction of the steel area and the concrete-steel bond strength. Moreover, both carbonation penetration and chloride corrosion of lining are incorporated in this model. Then the theoretical formulations are used to obtain the probabilistic time-dependent flexural capacity responses of tunnel lining. To further optimise the target model, the global sensitivity analysis approach is employed to search the critical parameters. Additionally, applicability, accuracy, and efficiency of the proposed approach are rigorously investigated by comparing the probabilistic information of the capacity degradation model with that of Monte-Carlo simulation method from practically motivated examples. Finally, time-variant probabilistic features of lining flexural capacity are systematically studied, and the numerical results showed that the tension bars are hard to reach its yield strength when considering the deformation incompatibility caused by rust formation. The moment capacity follows the normal distribution for both normal and lognormal distributed lining thickness during all its life cycle. [ABSTRACT FROM AUTHOR] |
| Copyright of Structure & Infrastructure Engineering: Maintenance, Management, Life-Cycle Design & Performance 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. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 151679824 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Time-variant probabilistic random degradation model on flexural capacity of road tunnel linings. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Han%2C+Xingbo%22">Han, Xingbo</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gao%2C+Kang%22">Gao, Kang</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ye%2C+Fei%22">Ye, Fei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Han%2C+Xin%22">Han, Xin</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Structure+%26+Infrastructure+Engineering%3A+Maintenance%2C+Management%2C+Life-Cycle+Design+%26+Performance%22">Structure & Infrastructure Engineering: Maintenance, Management, Life-Cycle Design & Performance</searchLink>. Sep2021, Vol. 17 Issue 9, p1175-1193. 19p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Tunnel+lining%22">Tunnel lining</searchLink><br /><searchLink fieldCode="DE" term="%22Tunnels%22">Tunnels</searchLink><br /><searchLink fieldCode="DE" term="%22Gaussian+distribution%22">Gaussian distribution</searchLink><br /><searchLink fieldCode="DE" term="%22Blood+group+incompatibility%22">Blood group incompatibility</searchLink><br /><searchLink fieldCode="DE" term="%22Simulation+methods+%26+models%22">Simulation methods & models</searchLink><br /><searchLink fieldCode="DE" term="%22Bond+strengths%22">Bond strengths</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: A time-variant random degradation model for assessing the flexural capacity of tunnel lining is proposed. By using the double reinforced beam model, the governing equation of moment capacity for tunnel lining is established with the consideration of the reduction of the steel area and the concrete-steel bond strength. Moreover, both carbonation penetration and chloride corrosion of lining are incorporated in this model. Then the theoretical formulations are used to obtain the probabilistic time-dependent flexural capacity responses of tunnel lining. To further optimise the target model, the global sensitivity analysis approach is employed to search the critical parameters. Additionally, applicability, accuracy, and efficiency of the proposed approach are rigorously investigated by comparing the probabilistic information of the capacity degradation model with that of Monte-Carlo simulation method from practically motivated examples. Finally, time-variant probabilistic features of lining flexural capacity are systematically studied, and the numerical results showed that the tension bars are hard to reach its yield strength when considering the deformation incompatibility caused by rust formation. The moment capacity follows the normal distribution for both normal and lognormal distributed lining thickness during all its life cycle. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Structure & Infrastructure Engineering: Maintenance, Management, Life-Cycle Design & Performance 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: 10.1080/15732479.2020.1801766 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 19 StartPage: 1175 Subjects: – SubjectFull: Tunnel lining Type: general – SubjectFull: Tunnels Type: general – SubjectFull: Gaussian distribution Type: general – SubjectFull: Blood group incompatibility Type: general – SubjectFull: Simulation methods & models Type: general – SubjectFull: Bond strengths Type: general Titles: – TitleFull: Time-variant probabilistic random degradation model on flexural capacity of road tunnel linings. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Han, Xingbo – PersonEntity: Name: NameFull: Gao, Kang – PersonEntity: Name: NameFull: Ye, Fei – PersonEntity: Name: NameFull: Han, Xin IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 09 Text: Sep2021 Type: published Y: 2021 Identifiers: – Type: issn-print Value: 15732479 Numbering: – Type: volume Value: 17 – Type: issue Value: 9 Titles: – TitleFull: Structure & Infrastructure Engineering: Maintenance, Management, Life-Cycle Design & Performance Type: main |
| ResultId | 1 |
