Numerical block-based simulation of rocking structures using a novel universal viscous damping model
Autor(a) principal: | |
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Data de Publicação: | 2021 |
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/1822/76643 |
Resumo: | Unreinforced masonry structures, particularly façade walls, are seismically vulnerable due to their weak connections with adjacent walls, floors, and/or roofs. During an earthquake, such walls formulate local mechanisms prone to out-of-plane collapse. This behavior has been largely investigated using classical rocking theory, which assumes the structure responds as a rigid body undergoing rocking motion, with energy dissipation at impact. Due to the complexity of the problem, however, e.g., number of degrees of freedom or boundary conditions, numerical block-based modeling is gaining momentum. However, numerical models lack a consistent and reliable treatment of the energy loss at impact. This paper bridges the gap between the well-established energy loss of classical rocking theory and the treatment of damping in numerical modeling. Specifically, it proposes an equivalent viscous damping model through novel ready-to-use predictive equations that capture the dissipative phenomena during both one-sided and two-sided planar rocking motion. The results reveal a satisfactory performance of the proposed model through comparisons with experimental results from literature and highlight its universality and robustness through applications of the model in fundamentally different block-based numerical modeling software. |
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Numerical block-based simulation of rocking structures using a novel universal viscous damping modelRockingCoefficient of restitutionViscous dampingNumerical modelingOut-of-plane collapseEngenharia e Tecnologia::Engenharia CivilScience & TechnologyCidades e comunidades sustentáveisUnreinforced masonry structures, particularly façade walls, are seismically vulnerable due to their weak connections with adjacent walls, floors, and/or roofs. During an earthquake, such walls formulate local mechanisms prone to out-of-plane collapse. This behavior has been largely investigated using classical rocking theory, which assumes the structure responds as a rigid body undergoing rocking motion, with energy dissipation at impact. Due to the complexity of the problem, however, e.g., number of degrees of freedom or boundary conditions, numerical block-based modeling is gaining momentum. However, numerical models lack a consistent and reliable treatment of the energy loss at impact. This paper bridges the gap between the well-established energy loss of classical rocking theory and the treatment of damping in numerical modeling. Specifically, it proposes an equivalent viscous damping model through novel ready-to-use predictive equations that capture the dissipative phenomena during both one-sided and two-sided planar rocking motion. The results reveal a satisfactory performance of the proposed model through comparisons with experimental results from literature and highlight its universality and robustness through applications of the model in fundamentally different block-based numerical modeling software.This study has been funded by the STAND4HERITAGE project (New Standards for Seismic Assessment of Built Cultural Heritage) that has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (Grant No. 833123) as an Advanced GrantAmerican Society of Civil Engineers (ASCE)Universidade do MinhoVlachakis, GiorgiosGiouvanidis, AnastasiosMehrotra, Anjali AbhayLourenço, Paulo B.2021-08-242021-08-24T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/76643engG. Vlachakis, A. I. Giouvanidis, A. Mehrotra & P. B. Lourenço. 2021. ‘Numerical block-based simulation of rocking structures using a novel universal viscous damping model’, Journal of Engineering Mechanics, 147 (11).0733-93991943-788910.1061/(ASCE)EM.1943-7889.0001985https://ascelibrary.org/doi/10.1061/%28ASCE%29EM.1943-7889.0001985info: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:RCAAP2023-07-21T11:53:49Zoai:repositorium.sdum.uminho.pt:1822/76643Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:43:17.486602Repositório 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 |
Numerical block-based simulation of rocking structures using a novel universal viscous damping model |
title |
Numerical block-based simulation of rocking structures using a novel universal viscous damping model |
spellingShingle |
Numerical block-based simulation of rocking structures using a novel universal viscous damping model Vlachakis, Giorgios Rocking Coefficient of restitution Viscous damping Numerical modeling Out-of-plane collapse Engenharia e Tecnologia::Engenharia Civil Science & Technology Cidades e comunidades sustentáveis |
title_short |
Numerical block-based simulation of rocking structures using a novel universal viscous damping model |
title_full |
Numerical block-based simulation of rocking structures using a novel universal viscous damping model |
title_fullStr |
Numerical block-based simulation of rocking structures using a novel universal viscous damping model |
title_full_unstemmed |
Numerical block-based simulation of rocking structures using a novel universal viscous damping model |
title_sort |
Numerical block-based simulation of rocking structures using a novel universal viscous damping model |
author |
Vlachakis, Giorgios |
author_facet |
Vlachakis, Giorgios Giouvanidis, Anastasios Mehrotra, Anjali Abhay Lourenço, Paulo B. |
author_role |
author |
author2 |
Giouvanidis, Anastasios Mehrotra, Anjali Abhay Lourenço, Paulo B. |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Vlachakis, Giorgios Giouvanidis, Anastasios Mehrotra, Anjali Abhay Lourenço, Paulo B. |
dc.subject.por.fl_str_mv |
Rocking Coefficient of restitution Viscous damping Numerical modeling Out-of-plane collapse Engenharia e Tecnologia::Engenharia Civil Science & Technology Cidades e comunidades sustentáveis |
topic |
Rocking Coefficient of restitution Viscous damping Numerical modeling Out-of-plane collapse Engenharia e Tecnologia::Engenharia Civil Science & Technology Cidades e comunidades sustentáveis |
description |
Unreinforced masonry structures, particularly façade walls, are seismically vulnerable due to their weak connections with adjacent walls, floors, and/or roofs. During an earthquake, such walls formulate local mechanisms prone to out-of-plane collapse. This behavior has been largely investigated using classical rocking theory, which assumes the structure responds as a rigid body undergoing rocking motion, with energy dissipation at impact. Due to the complexity of the problem, however, e.g., number of degrees of freedom or boundary conditions, numerical block-based modeling is gaining momentum. However, numerical models lack a consistent and reliable treatment of the energy loss at impact. This paper bridges the gap between the well-established energy loss of classical rocking theory and the treatment of damping in numerical modeling. Specifically, it proposes an equivalent viscous damping model through novel ready-to-use predictive equations that capture the dissipative phenomena during both one-sided and two-sided planar rocking motion. The results reveal a satisfactory performance of the proposed model through comparisons with experimental results from literature and highlight its universality and robustness through applications of the model in fundamentally different block-based numerical modeling software. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-08-24 2021-08-24T00:00:00Z |
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/1822/76643 |
url |
http://hdl.handle.net/1822/76643 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
G. Vlachakis, A. I. Giouvanidis, A. Mehrotra & P. B. Lourenço. 2021. ‘Numerical block-based simulation of rocking structures using a novel universal viscous damping model’, Journal of Engineering Mechanics, 147 (11). 0733-9399 1943-7889 10.1061/(ASCE)EM.1943-7889.0001985 https://ascelibrary.org/doi/10.1061/%28ASCE%29EM.1943-7889.0001985 |
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 |
American Society of Civil Engineers (ASCE) |
publisher.none.fl_str_mv |
American Society of Civil Engineers (ASCE) |
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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1799132178923126784 |