Seismic analysis of masonry gravity dams using the discrete element method: Implementation and application
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/44910 |
Resumo: | Much research in recent years has focused on the seismic analysis of concrete and earthfill dams, and few works have addressed the case of masonry dams. The structural behaviour of masonry dams is controlled essentially by its discontinuous nature, which may induce significant non-linear response during an intense earthquake. In this paper a numerical tool based on the Discrete Element Method is presented, aimed at the static, dynamic and hydromechanical analysis of masonry gravity dams. The use of discontinuous models is mandatory for the study of failure mechanisms involving the masonry discontinuities, the dam-rock interface or the rock mass joints. The Discrete Element Method is able to assemble continuous and discontinuous meshes simultaneously in the same model, providing a versatile tool to consider various assumptions and levels of analysis, ranging from simplified to detailed structural representations. A comprehensive study of the seismic behaviour of Lagoa Comprida Dam, located in Portugal, is presented. Both continuous and discontinuous models were developed to assess the main failure mechanisms, including overstress, partial and global sliding and overturning. |
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Seismic analysis of masonry gravity dams using the discrete element method: Implementation and applicationMasonry damsDiscrete elementsSeismic analysisSafety assessment,Gravity damsEngenharia e Tecnologia::Engenharia CivilScience & TechnologyMuch research in recent years has focused on the seismic analysis of concrete and earthfill dams, and few works have addressed the case of masonry dams. The structural behaviour of masonry dams is controlled essentially by its discontinuous nature, which may induce significant non-linear response during an intense earthquake. In this paper a numerical tool based on the Discrete Element Method is presented, aimed at the static, dynamic and hydromechanical analysis of masonry gravity dams. The use of discontinuous models is mandatory for the study of failure mechanisms involving the masonry discontinuities, the dam-rock interface or the rock mass joints. The Discrete Element Method is able to assemble continuous and discontinuous meshes simultaneously in the same model, providing a versatile tool to consider various assumptions and levels of analysis, ranging from simplified to detailed structural representations. A comprehensive study of the seismic behaviour of Lagoa Comprida Dam, located in Portugal, is presented. Both continuous and discontinuous models were developed to assess the main failure mechanisms, including overstress, partial and global sliding and overturning.Permission by EDP – Energias de Portugal, to present the dam modelling results is gratefully acknowledged.Taylor and FrancisUniversidade do MinhoBretas, E. M.Lemos, José V.Lourenço, Paulo B.20162016-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/44910engBretas, E. M., Lemos, J. V., & Lourenco, P. B. (2016). Seismic Analysis of Masonry Gravity Dams Using the Discrete Element Method: Implementation and Application. Journal of Earthquake Engineering, 20(2), 157-184. doi: 10.1080/13632469.2015.10854631363-24691559-808X10.1080/13632469.2015.1085463info: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:RCAAP2023-07-21T12:10:46Zoai:repositorium.sdum.uminho.pt:1822/44910Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:02:25.603007Repositório 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 |
Seismic analysis of masonry gravity dams using the discrete element method: Implementation and application |
title |
Seismic analysis of masonry gravity dams using the discrete element method: Implementation and application |
spellingShingle |
Seismic analysis of masonry gravity dams using the discrete element method: Implementation and application Bretas, E. M. Masonry dams Discrete elements Seismic analysis Safety assessment, Gravity dams Engenharia e Tecnologia::Engenharia Civil Science & Technology |
title_short |
Seismic analysis of masonry gravity dams using the discrete element method: Implementation and application |
title_full |
Seismic analysis of masonry gravity dams using the discrete element method: Implementation and application |
title_fullStr |
Seismic analysis of masonry gravity dams using the discrete element method: Implementation and application |
title_full_unstemmed |
Seismic analysis of masonry gravity dams using the discrete element method: Implementation and application |
title_sort |
Seismic analysis of masonry gravity dams using the discrete element method: Implementation and application |
author |
Bretas, E. M. |
author_facet |
Bretas, E. M. Lemos, José V. Lourenço, Paulo B. |
author_role |
author |
author2 |
Lemos, José V. Lourenço, Paulo B. |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Bretas, E. M. Lemos, José V. Lourenço, Paulo B. |
dc.subject.por.fl_str_mv |
Masonry dams Discrete elements Seismic analysis Safety assessment, Gravity dams Engenharia e Tecnologia::Engenharia Civil Science & Technology |
topic |
Masonry dams Discrete elements Seismic analysis Safety assessment, Gravity dams Engenharia e Tecnologia::Engenharia Civil Science & Technology |
description |
Much research in recent years has focused on the seismic analysis of concrete and earthfill dams, and few works have addressed the case of masonry dams. The structural behaviour of masonry dams is controlled essentially by its discontinuous nature, which may induce significant non-linear response during an intense earthquake. In this paper a numerical tool based on the Discrete Element Method is presented, aimed at the static, dynamic and hydromechanical analysis of masonry gravity dams. The use of discontinuous models is mandatory for the study of failure mechanisms involving the masonry discontinuities, the dam-rock interface or the rock mass joints. The Discrete Element Method is able to assemble continuous and discontinuous meshes simultaneously in the same model, providing a versatile tool to consider various assumptions and levels of analysis, ranging from simplified to detailed structural representations. A comprehensive study of the seismic behaviour of Lagoa Comprida Dam, located in Portugal, is presented. Both continuous and discontinuous models were developed to assess the main failure mechanisms, including overstress, partial and global sliding and overturning. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016 2016-01-01T00:00:00Z |
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 |
http://hdl.handle.net/1822/44910 |
url |
http://hdl.handle.net/1822/44910 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Bretas, E. M., Lemos, J. V., & Lourenco, P. B. (2016). Seismic Analysis of Masonry Gravity Dams Using the Discrete Element Method: Implementation and Application. Journal of Earthquake Engineering, 20(2), 157-184. doi: 10.1080/13632469.2015.1085463 1363-2469 1559-808X 10.1080/13632469.2015.1085463 |
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 |
Taylor and Francis |
publisher.none.fl_str_mv |
Taylor and Francis |
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 |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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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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1799132426777133056 |