Efficiency of alternative intensity measures for the seismic assessment of monolithic free-standing columns.
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| Title: | Efficiency of alternative intensity measures for the seismic assessment of monolithic free-standing columns. |
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| Authors: | Pappas, Athanasios1, Sextos, Anastasios a.sextos@bristol.ac.uk, da Porto, Francesca1, Modena, Claudio1 |
| Source: | Bulletin of Earthquake Engineering. Apr2017, Vol. 15 Issue 4, p1635-1659. 25p. |
| Subject Terms: | *Monuments, *Discrete element method, *Earthquake hazard analysis, *Earthquake intensity, *Numerical analysis, *Maintenance |
| Abstract: | This paper deals with the dynamic response of a free-standing ancient column in the Roman Agora of Thessaloniki, Greece as a means to shed more light on the complex behaviour of rocking bodies under seismic excitation. Numerical analyses utilizing discrete element method were carried out with the use of multiple seismic records selected based on the disaggregation of the seismic hazard for the region of interest. To identify their impact on structural performance, earthquake Intensity Measures, such as Peak Ground Acceleration and Peak Ground Velocity are examined for the case of a column that sustained no visible permanent deformations during the Ms = 6.5 Thessaloniki earthquake of 1978. The analysis revealed a weak correlation of PGA and PGV with the response results and a significant influence of the mean frequency (f) of the seismic motion. No coupling was found between the maximum displacement of the top during the oscillation and the permanent post-seismic deformations. The complementarity of both earthquake Intensity Measures in the structural vulnerability assessment is also depicted. [ABSTRACT FROM AUTHOR] |
| Database: | Energy & Power Source |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: enr DbLabel: Energy & Power Source An: 121658110 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Efficiency of alternative intensity measures for the seismic assessment of monolithic free-standing columns. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Pappas%2C+Athanasios%22">Pappas, Athanasios</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Sextos%2C+Anastasios%22">Sextos, Anastasios</searchLink><i> a.sextos@bristol.ac.uk</i><br /><searchLink fieldCode="AR" term="%22da+Porto%2C+Francesca%22">da Porto, Francesca</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Modena%2C+Claudio%22">Modena, Claudio</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Bulletin+of+Earthquake+Engineering%22">Bulletin of Earthquake Engineering</searchLink>. Apr2017, Vol. 15 Issue 4, p1635-1659. 25p. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22Monuments%22">Monuments</searchLink><br />*<searchLink fieldCode="DE" term="%22Discrete+element+method%22">Discrete element method</searchLink><br />*<searchLink fieldCode="DE" term="%22Earthquake+hazard+analysis%22">Earthquake hazard analysis</searchLink><br />*<searchLink fieldCode="DE" term="%22Earthquake+intensity%22">Earthquake intensity</searchLink><br />*<searchLink fieldCode="DE" term="%22Numerical+analysis%22">Numerical analysis</searchLink><br />*<searchLink fieldCode="DE" term="%22Maintenance%22">Maintenance</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: This paper deals with the dynamic response of a free-standing ancient column in the Roman Agora of Thessaloniki, Greece as a means to shed more light on the complex behaviour of rocking bodies under seismic excitation. Numerical analyses utilizing discrete element method were carried out with the use of multiple seismic records selected based on the disaggregation of the seismic hazard for the region of interest. To identify their impact on structural performance, earthquake Intensity Measures, such as Peak Ground Acceleration and Peak Ground Velocity are examined for the case of a column that sustained no visible permanent deformations during the Ms = 6.5 Thessaloniki earthquake of 1978. The analysis revealed a weak correlation of PGA and PGV with the response results and a significant influence of the mean frequency (f) of the seismic motion. No coupling was found between the maximum displacement of the top during the oscillation and the permanent post-seismic deformations. The complementarity of both earthquake Intensity Measures in the structural vulnerability assessment is also depicted. [ABSTRACT FROM AUTHOR] |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s10518-016-0035-0 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 25 StartPage: 1635 Subjects: – SubjectFull: Monuments Type: general – SubjectFull: Discrete element method Type: general – SubjectFull: Earthquake hazard analysis Type: general – SubjectFull: Earthquake intensity Type: general – SubjectFull: Numerical analysis Type: general – SubjectFull: Maintenance Type: general Titles: – TitleFull: Efficiency of alternative intensity measures for the seismic assessment of monolithic free-standing columns. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Pappas, Athanasios – PersonEntity: Name: NameFull: Sextos, Anastasios – PersonEntity: Name: NameFull: da Porto, Francesca – PersonEntity: Name: NameFull: Modena, Claudio IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 04 Text: Apr2017 Type: published Y: 2017 Identifiers: – Type: issn-print Value: 1570761X Numbering: – Type: volume Value: 15 – Type: issue Value: 4 Titles: – TitleFull: Bulletin of Earthquake Engineering Type: main |
| ResultId | 1 |
