Soil-structure interaction effects in analysis of seismic fragility of bridges using an intensity-based ground motion selection procedure.
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| Title: | Soil-structure interaction effects in analysis of seismic fragility of bridges using an intensity-based ground motion selection procedure. |
|---|---|
| Authors: | Stefanidou, Sotiria P.1, Lesgidis, Nikolaos1, Sextos, Anastasios G.1,2, Kappos, Andreas J.1,3, Kotsoglou, Anastasios N.4 |
| Source: | Engineering Structures. Nov2017, Vol. 151, p366-380. 15p. |
| Subjects: | Effect of earthquakes on bridges, Soil-structure interaction, Earthquake hazard analysis, Embankments, Bridge foundations & piers |
| Abstract: | The paper focuses on the effects of Soil-Structure Interaction (SSI) in seismic fragility analysis of reinforced concrete (RC) bridges, considering the vulnerability of multiple critical components of the bridge and different modelling approaches for soil-foundation and bridge-embankment interactions. A two-step procedure, based on the introduction of springs and dashpots at the pier foundations and the abutment to account for inertial and kinematic SSI effects, is incorporated into a component-based methodology for the derivation of bridge-specific fragility curves. The proposed methodology is applied for quantifying the fragility of a typical highway overpass at both the component and system level, while the effect of alternative procedures (of varying complexity) for modelling foundation and abutment boundary conditions is critically assessed. The rigorous SSI modelling method is compared with simpler methods and the results show that consideration of SSI may only slightly affect the probability of system failure, depending on the modelling assumptions made. However, soil-structure interaction may have a notable effect on component fragility, especially for the more critical damage states. This is an observation that is commonly overlooked when assessing the structural performance at the system level and can be particularly important when component fragility is an issue, e.g. when designing a retrofit scheme. [ABSTRACT FROM AUTHOR] |
| Copyright of Engineering Structures is the property of Elsevier B.V. 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: 125101511 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Soil-structure interaction effects in analysis of seismic fragility of bridges using an intensity-based ground motion selection procedure. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Stefanidou%2C+Sotiria+P%2E%22">Stefanidou, Sotiria P.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Lesgidis%2C+Nikolaos%22">Lesgidis, Nikolaos</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Sextos%2C+Anastasios+G%2E%22">Sextos, Anastasios G.</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Kappos%2C+Andreas+J%2E%22">Kappos, Andreas J.</searchLink><relatesTo>1,3</relatesTo><br /><searchLink fieldCode="AR" term="%22Kotsoglou%2C+Anastasios+N%2E%22">Kotsoglou, Anastasios N.</searchLink><relatesTo>4</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Engineering+Structures%22">Engineering Structures</searchLink>. Nov2017, Vol. 151, p366-380. 15p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Effect+of+earthquakes+on+bridges%22">Effect of earthquakes on bridges</searchLink><br /><searchLink fieldCode="DE" term="%22Soil-structure+interaction%22">Soil-structure interaction</searchLink><br /><searchLink fieldCode="DE" term="%22Earthquake+hazard+analysis%22">Earthquake hazard analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Embankments%22">Embankments</searchLink><br /><searchLink fieldCode="DE" term="%22Bridge+foundations+%26+piers%22">Bridge foundations & piers</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The paper focuses on the effects of Soil-Structure Interaction (SSI) in seismic fragility analysis of reinforced concrete (RC) bridges, considering the vulnerability of multiple critical components of the bridge and different modelling approaches for soil-foundation and bridge-embankment interactions. A two-step procedure, based on the introduction of springs and dashpots at the pier foundations and the abutment to account for inertial and kinematic SSI effects, is incorporated into a component-based methodology for the derivation of bridge-specific fragility curves. The proposed methodology is applied for quantifying the fragility of a typical highway overpass at both the component and system level, while the effect of alternative procedures (of varying complexity) for modelling foundation and abutment boundary conditions is critically assessed. The rigorous SSI modelling method is compared with simpler methods and the results show that consideration of SSI may only slightly affect the probability of system failure, depending on the modelling assumptions made. However, soil-structure interaction may have a notable effect on component fragility, especially for the more critical damage states. This is an observation that is commonly overlooked when assessing the structural performance at the system level and can be particularly important when component fragility is an issue, e.g. when designing a retrofit scheme. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Engineering Structures is the property of Elsevier B.V. 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: 10.1016/j.engstruct.2017.08.033 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 15 StartPage: 366 Subjects: – SubjectFull: Effect of earthquakes on bridges Type: general – SubjectFull: Soil-structure interaction Type: general – SubjectFull: Earthquake hazard analysis Type: general – SubjectFull: Embankments Type: general – SubjectFull: Bridge foundations & piers Type: general Titles: – TitleFull: Soil-structure interaction effects in analysis of seismic fragility of bridges using an intensity-based ground motion selection procedure. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Stefanidou, Sotiria P. – PersonEntity: Name: NameFull: Lesgidis, Nikolaos – PersonEntity: Name: NameFull: Sextos, Anastasios G. – PersonEntity: Name: NameFull: Kappos, Andreas J. – PersonEntity: Name: NameFull: Kotsoglou, Anastasios N. IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 11 Text: Nov2017 Type: published Y: 2017 Identifiers: – Type: issn-print Value: 01410296 Numbering: – Type: volume Value: 151 Titles: – TitleFull: Engineering Structures Type: main |
| ResultId | 1 |
