Dynamic numerical simulations of dry-stone retaining walls: identification of the seismic behaviour factor
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://hdl.handle.net/1822/78658 |
Resumo: | Dry-stone retaining walls can be found worldwide and constitute critical assets of the built heritage for many sloped territories, holding cultural and economic value. Their design currently follows empirical rules, though the first steps towards a static safety assessment have recently been proposed in the scientific and engineering literature. However, the seismic design of these structures still lacks research studies. Therefore, this work conducts discrete element simulations to assess their dynamic behaviour. First, the approach is validated through existing scaled-down shaking table experiments, and it is found that the numerical simulations are conservative (i.e., on the safe side). Next, full-scale dry-stone retaining walls are subjected to harmonic excitations as an idealisation of earthquakes. Finally, based on a simplified limit-equilibrium analytical tool, their seismic behaviour factor is estimated for the first time in the literature, which falls within the proposed values of the European standards (Eurocode 8). This will allow engineers to adopt a validated behaviour factor in practice to assess and design dry-stone retaining walls with a pseudo-static approach. |
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Dynamic numerical simulations of dry-stone retaining walls: identification of the seismic behaviour factorDiscrete element method (DEM)MasonryEarthquake engineeringSeismic designStandardsGeotechnical engineeringSlope engineeringEngenharia e Tecnologia::Engenharia CivilScience & TechnologyCidades e comunidades sustentáveisDry-stone retaining walls can be found worldwide and constitute critical assets of the built heritage for many sloped territories, holding cultural and economic value. Their design currently follows empirical rules, though the first steps towards a static safety assessment have recently been proposed in the scientific and engineering literature. However, the seismic design of these structures still lacks research studies. Therefore, this work conducts discrete element simulations to assess their dynamic behaviour. First, the approach is validated through existing scaled-down shaking table experiments, and it is found that the numerical simulations are conservative (i.e., on the safe side). Next, full-scale dry-stone retaining walls are subjected to harmonic excitations as an idealisation of earthquakes. Finally, based on a simplified limit-equilibrium analytical tool, their seismic behaviour factor is estimated for the first time in the literature, which falls within the proposed values of the European standards (Eurocode 8). This will allow engineers to adopt a validated behaviour factor in practice to assess and design dry-stone retaining walls with a pseudo-static approach.This research was funded by the French Ministry of Education and Research, through the PhD grant attributed to the first author. This work was partly financed by FCT / MCTES through national funds (PIDDAC) under the R&D Unit Institute for Sustainability and Innovation in Structural Engineering (ISISE), under reference UIDB/04029/2020.Multidisciplinary Digital Publishing Institute (MDPI)Universidade do MinhoSavalle, NathanaëlVincens, EricHans, StéphaneLourenço, Paulo B.2022-06-172022-06-17T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/1822/78658engSavalle, N.; Vincens, E.; Hans, S.; Lourenço, P.B. Dynamic Numerical Simulations of Dry-Stone RetainingWalls: Identification of the Seismic Behaviour Factor. Geosciences 2022, 12, 252. https://doi.org/ 10.3390/geosciences120602522076-326310.3390/geosciences12060252https://www.mdpi.com/2076-3263/12/6/252info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:11:48Zoai:repositorium.sdum.uminho.pt:1822/78658Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:03:37.088955Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Dynamic numerical simulations of dry-stone retaining walls: identification of the seismic behaviour factor |
title |
Dynamic numerical simulations of dry-stone retaining walls: identification of the seismic behaviour factor |
spellingShingle |
Dynamic numerical simulations of dry-stone retaining walls: identification of the seismic behaviour factor Savalle, Nathanaël Discrete element method (DEM) Masonry Earthquake engineering Seismic design Standards Geotechnical engineering Slope engineering Engenharia e Tecnologia::Engenharia Civil Science & Technology Cidades e comunidades sustentáveis |
title_short |
Dynamic numerical simulations of dry-stone retaining walls: identification of the seismic behaviour factor |
title_full |
Dynamic numerical simulations of dry-stone retaining walls: identification of the seismic behaviour factor |
title_fullStr |
Dynamic numerical simulations of dry-stone retaining walls: identification of the seismic behaviour factor |
title_full_unstemmed |
Dynamic numerical simulations of dry-stone retaining walls: identification of the seismic behaviour factor |
title_sort |
Dynamic numerical simulations of dry-stone retaining walls: identification of the seismic behaviour factor |
author |
Savalle, Nathanaël |
author_facet |
Savalle, Nathanaël Vincens, Eric Hans, Stéphane Lourenço, Paulo B. |
author_role |
author |
author2 |
Vincens, Eric Hans, Stéphane Lourenço, Paulo B. |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Savalle, Nathanaël Vincens, Eric Hans, Stéphane Lourenço, Paulo B. |
dc.subject.por.fl_str_mv |
Discrete element method (DEM) Masonry Earthquake engineering Seismic design Standards Geotechnical engineering Slope engineering Engenharia e Tecnologia::Engenharia Civil Science & Technology Cidades e comunidades sustentáveis |
topic |
Discrete element method (DEM) Masonry Earthquake engineering Seismic design Standards Geotechnical engineering Slope engineering Engenharia e Tecnologia::Engenharia Civil Science & Technology Cidades e comunidades sustentáveis |
description |
Dry-stone retaining walls can be found worldwide and constitute critical assets of the built heritage for many sloped territories, holding cultural and economic value. Their design currently follows empirical rules, though the first steps towards a static safety assessment have recently been proposed in the scientific and engineering literature. However, the seismic design of these structures still lacks research studies. Therefore, this work conducts discrete element simulations to assess their dynamic behaviour. First, the approach is validated through existing scaled-down shaking table experiments, and it is found that the numerical simulations are conservative (i.e., on the safe side). Next, full-scale dry-stone retaining walls are subjected to harmonic excitations as an idealisation of earthquakes. Finally, based on a simplified limit-equilibrium analytical tool, their seismic behaviour factor is estimated for the first time in the literature, which falls within the proposed values of the European standards (Eurocode 8). This will allow engineers to adopt a validated behaviour factor in practice to assess and design dry-stone retaining walls with a pseudo-static approach. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-06-17 2022-06-17T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://hdl.handle.net/1822/78658 |
url |
https://hdl.handle.net/1822/78658 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Savalle, N.; Vincens, E.; Hans, S.; Lourenço, P.B. Dynamic Numerical Simulations of Dry-Stone RetainingWalls: Identification of the Seismic Behaviour Factor. Geosciences 2022, 12, 252. https://doi.org/ 10.3390/geosciences12060252 2076-3263 10.3390/geosciences12060252 https://www.mdpi.com/2076-3263/12/6/252 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Multidisciplinary Digital Publishing Institute (MDPI) |
publisher.none.fl_str_mv |
Multidisciplinary Digital Publishing Institute (MDPI) |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799132443125481472 |