Seismic assessment of a school building in Nepal and analysis of retrofitting solutions
Autor(a) principal: | |
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Data de Publicação: | 2018 |
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/10400.8/4158 |
Resumo: | Recent earthquakes highlighted the vulnerability of some infilled reinforced concrete structures due to the presence and distribution of the infill masonry walls. Buildings such as school buildings and residential buildings are typically not designed considering the contribution of the infill panels to the structure strength and stiffness, when these are subjected to earthquakes. The lack of consideration of the infill panel results in observed poor performance and structural collapses. This manuscript presents a numerical study of a school in Nepal, representative of those existent in the country. Non-linear numerical analyses were carried out to assess the seismic vulnerability in terms of peak inter-storey drifts. In addition, results will be presented and discussed in terms of peak inter-storey drift profiles and peak base shear. Results from a seismic vulnerability assessment of the pre-earthquake structure indicate that the presence of the infill panels in the original structures were responsible for the development a soft-storey mechanism, combined with torsion. Following the seismic vulnerability assessment, four different retrofit solutions were tested and compared with the results of the original structure to gain an understanding on the structural efficiency of each proposed solution. The retrofit solutions proposed revealed to be efficient and reduce the seismic vulnerability. The retrofit solution showing best results correspond to the ones in which reinforced concrete column jacketing was employed. |
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Seismic assessment of a school building in Nepal and analysis of retrofitting solutionsNepalSchool buildingRC structureMasonry infill wallsSeismic vulnerabilityRetrofit solutionsNumerical modelingRecent earthquakes highlighted the vulnerability of some infilled reinforced concrete structures due to the presence and distribution of the infill masonry walls. Buildings such as school buildings and residential buildings are typically not designed considering the contribution of the infill panels to the structure strength and stiffness, when these are subjected to earthquakes. The lack of consideration of the infill panel results in observed poor performance and structural collapses. This manuscript presents a numerical study of a school in Nepal, representative of those existent in the country. Non-linear numerical analyses were carried out to assess the seismic vulnerability in terms of peak inter-storey drifts. In addition, results will be presented and discussed in terms of peak inter-storey drift profiles and peak base shear. Results from a seismic vulnerability assessment of the pre-earthquake structure indicate that the presence of the infill panels in the original structures were responsible for the development a soft-storey mechanism, combined with torsion. Following the seismic vulnerability assessment, four different retrofit solutions were tested and compared with the results of the original structure to gain an understanding on the structural efficiency of each proposed solution. The retrofit solutions proposed revealed to be efficient and reduce the seismic vulnerability. The retrofit solution showing best results correspond to the ones in which reinforced concrete column jacketing was employed.Springer International Publishing AGIC-OnlineRodrigues, HugoFurtado, AndréVila-Pouca, NelsonVarum, HumbertoBarbosa, André R.2019-10-03T13:16:29Z2018-112018-11-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.8/4158engRodrigues, Hugo & Furtado, André & Vila Pouca, Nelson & Varum, H. & Barbosa, Andre. (2018). Seismic Assessment of a School Building in Nepal and Analysis of Retrofitting Solutions. International Journal of Civil Engineering. 16(11). 10.1007/s40999-018-0297-91735-05222383-387410.1007/s40999-018-0297-9metadata only accessinfo: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:RCAAP2024-01-17T15:48:36Zoai:iconline.ipleiria.pt:10400.8/4158Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:48:03.575850Repositório 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 assessment of a school building in Nepal and analysis of retrofitting solutions |
title |
Seismic assessment of a school building in Nepal and analysis of retrofitting solutions |
spellingShingle |
Seismic assessment of a school building in Nepal and analysis of retrofitting solutions Rodrigues, Hugo Nepal School building RC structure Masonry infill walls Seismic vulnerability Retrofit solutions Numerical modeling |
title_short |
Seismic assessment of a school building in Nepal and analysis of retrofitting solutions |
title_full |
Seismic assessment of a school building in Nepal and analysis of retrofitting solutions |
title_fullStr |
Seismic assessment of a school building in Nepal and analysis of retrofitting solutions |
title_full_unstemmed |
Seismic assessment of a school building in Nepal and analysis of retrofitting solutions |
title_sort |
Seismic assessment of a school building in Nepal and analysis of retrofitting solutions |
author |
Rodrigues, Hugo |
author_facet |
Rodrigues, Hugo Furtado, André Vila-Pouca, Nelson Varum, Humberto Barbosa, André R. |
author_role |
author |
author2 |
Furtado, André Vila-Pouca, Nelson Varum, Humberto Barbosa, André R. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
IC-Online |
dc.contributor.author.fl_str_mv |
Rodrigues, Hugo Furtado, André Vila-Pouca, Nelson Varum, Humberto Barbosa, André R. |
dc.subject.por.fl_str_mv |
Nepal School building RC structure Masonry infill walls Seismic vulnerability Retrofit solutions Numerical modeling |
topic |
Nepal School building RC structure Masonry infill walls Seismic vulnerability Retrofit solutions Numerical modeling |
description |
Recent earthquakes highlighted the vulnerability of some infilled reinforced concrete structures due to the presence and distribution of the infill masonry walls. Buildings such as school buildings and residential buildings are typically not designed considering the contribution of the infill panels to the structure strength and stiffness, when these are subjected to earthquakes. The lack of consideration of the infill panel results in observed poor performance and structural collapses. This manuscript presents a numerical study of a school in Nepal, representative of those existent in the country. Non-linear numerical analyses were carried out to assess the seismic vulnerability in terms of peak inter-storey drifts. In addition, results will be presented and discussed in terms of peak inter-storey drift profiles and peak base shear. Results from a seismic vulnerability assessment of the pre-earthquake structure indicate that the presence of the infill panels in the original structures were responsible for the development a soft-storey mechanism, combined with torsion. Following the seismic vulnerability assessment, four different retrofit solutions were tested and compared with the results of the original structure to gain an understanding on the structural efficiency of each proposed solution. The retrofit solutions proposed revealed to be efficient and reduce the seismic vulnerability. The retrofit solution showing best results correspond to the ones in which reinforced concrete column jacketing was employed. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-11 2018-11-01T00:00:00Z 2019-10-03T13:16:29Z |
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/10400.8/4158 |
url |
http://hdl.handle.net/10400.8/4158 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Rodrigues, Hugo & Furtado, André & Vila Pouca, Nelson & Varum, H. & Barbosa, Andre. (2018). Seismic Assessment of a School Building in Nepal and Analysis of Retrofitting Solutions. International Journal of Civil Engineering. 16(11). 10.1007/s40999-018-0297-9 1735-0522 2383-3874 10.1007/s40999-018-0297-9 |
dc.rights.driver.fl_str_mv |
metadata only access info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
metadata only access |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Springer International Publishing AG |
publisher.none.fl_str_mv |
Springer International Publishing AG |
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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1799136974203781120 |