Nonlinear Seismic Analysis of Ground Structure to Evaluate the Capacity of a Permanent Tunnel Lining.
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| Title: | Nonlinear Seismic Analysis of Ground Structure to Evaluate the Capacity of a Permanent Tunnel Lining. |
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| Authors: | Hassani MSc, Civil Engineering, Rahim1 (AUTHOR), Hojatkashani Dr, Assist. Prof., Ata1 (AUTHOR) ata_hojat@aut.ac.ir, Basirat Dr, Rouhollah2 (AUTHOR) |
| Source: | Structural Engineering International. Feb2024, Vol. 34 Issue 1, p102-113. 12p. |
| Subjects: | Tunnel lining, Tunnels, Nonlinear analysis, Earthquake resistant design, Earthquakes, Linear statistical models, Damage models |
| Abstract: | In this paper, in addition to the linear analysis used for typical tunnels, nonlinear seismic analysis of a tunnel has been investigated using pseudo-static method and a damaged concrete behavior model introduced in ABAQUS® software. The simulations were carried out under three conditions, free field, ovaling and racking, at two hazardous earthquake levels according to an Operation Design Earthquake (ODE) and a Maximum Design Earthquake (MDE). Then, the structural capacity curve and the behavior factor for the final tunnel lining were obtained. In order to extend the studies as well as to verify the pseudo-static analyses, seven nonlinear dynamic analyses compatible with the site under MDE conditions have been performed. The results showed that the tunnel lining procedure created limited tensile cracks under compression. At the bottom corners of the tunnel structure, the resultant stresses in the tunnel lining under two earthquakes caused failure and created tensile cracks. Therefore, it was necessary to reinforce the lining at corners. Comparison between different nonlinear time history seismic analysis and pseudo-static methods indicated that the pseudo-static methods resulted in 10–30% less acceleration than the average results obtained from time history analysis. [ABSTRACT FROM AUTHOR] |
| Copyright of Structural Engineering International 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: 175233589 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Nonlinear Seismic Analysis of Ground Structure to Evaluate the Capacity of a Permanent Tunnel Lining. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Hassani+MSc%2C+Civil+Engineering%2C+Rahim%22">Hassani MSc, Civil Engineering, Rahim</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hojatkashani+Dr%2C+Assist%2E+Prof%2E%2C+Ata%22">Hojatkashani Dr, Assist. Prof., Ata</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> ata_hojat@aut.ac.ir</i><br /><searchLink fieldCode="AR" term="%22Basirat+Dr%2C+Rouhollah%22">Basirat Dr, Rouhollah</searchLink><relatesTo>2</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Structural+Engineering+International%22">Structural Engineering International</searchLink>. Feb2024, Vol. 34 Issue 1, p102-113. 12p. – 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="%22Nonlinear+analysis%22">Nonlinear analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Earthquake+resistant+design%22">Earthquake resistant design</searchLink><br /><searchLink fieldCode="DE" term="%22Earthquakes%22">Earthquakes</searchLink><br /><searchLink fieldCode="DE" term="%22Linear+statistical+models%22">Linear statistical models</searchLink><br /><searchLink fieldCode="DE" term="%22Damage+models%22">Damage models</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: In this paper, in addition to the linear analysis used for typical tunnels, nonlinear seismic analysis of a tunnel has been investigated using pseudo-static method and a damaged concrete behavior model introduced in ABAQUS® software. The simulations were carried out under three conditions, free field, ovaling and racking, at two hazardous earthquake levels according to an Operation Design Earthquake (ODE) and a Maximum Design Earthquake (MDE). Then, the structural capacity curve and the behavior factor for the final tunnel lining were obtained. In order to extend the studies as well as to verify the pseudo-static analyses, seven nonlinear dynamic analyses compatible with the site under MDE conditions have been performed. The results showed that the tunnel lining procedure created limited tensile cracks under compression. At the bottom corners of the tunnel structure, the resultant stresses in the tunnel lining under two earthquakes caused failure and created tensile cracks. Therefore, it was necessary to reinforce the lining at corners. Comparison between different nonlinear time history seismic analysis and pseudo-static methods indicated that the pseudo-static methods resulted in 10–30% less acceleration than the average results obtained from time history analysis. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Structural Engineering International 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: 10.1080/10168664.2022.2125485 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 12 StartPage: 102 Subjects: – SubjectFull: Tunnel lining Type: general – SubjectFull: Tunnels Type: general – SubjectFull: Nonlinear analysis Type: general – SubjectFull: Earthquake resistant design Type: general – SubjectFull: Earthquakes Type: general – SubjectFull: Linear statistical models Type: general – SubjectFull: Damage models Type: general Titles: – TitleFull: Nonlinear Seismic Analysis of Ground Structure to Evaluate the Capacity of a Permanent Tunnel Lining. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Hassani MSc, Civil Engineering, Rahim – PersonEntity: Name: NameFull: Hojatkashani Dr, Assist. Prof., Ata – PersonEntity: Name: NameFull: Basirat Dr, Rouhollah IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 02 Text: Feb2024 Type: published Y: 2024 Identifiers: – Type: issn-print Value: 10168664 Numbering: – Type: volume Value: 34 – Type: issue Value: 1 Titles: – TitleFull: Structural Engineering International Type: main |
| ResultId | 1 |
