A semi-destructive assessment method to estimate the residual strength of maritime pine structural elements degraded by anobiids
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://doi.org/10.1617/s11527-019-1354-9 |
Resumo: | In this article, an assessment method to estimate the residual strength of pine structural elements degraded by anobiids is presented. This novel method was developed in the laboratory to be used in situ and is based on the strength required to withdraw a screw on the surface of degraded timber. Samples of degraded maritime pine (Pinus pinaster Ait.) were submitted to micro-computed tomography (μ-XCT) to quantify density loss. This parameter is highly correlated with mechanical properties thus central for the assessment of timber structural capacity. Density loss values have been correlated with both screw withdrawal force and shear parallel to the grain strength showing significant relationships between these parameters. Using these correlations, the density loss of a degraded element and its shear strength parallel to the grain via the screw withdrawal force can be estimated enabling a valid quantitative assessment of the timber elements residual strength and, therefore, contributing to reduce unnecessary replacement, to boost eco-efficient interventions and to provide foundations required to perform experimental modelling tests. |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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7160 |
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A semi-destructive assessment method to estimate the residual strength of maritime pine structural elements degraded by anobiidsAnobiid infestationDamage assessmentMicro-computed tomographyScrew withdrawalTimberCivil and Structural EngineeringBuilding and ConstructionMaterials Science(all)Mechanics of MaterialsIn this article, an assessment method to estimate the residual strength of pine structural elements degraded by anobiids is presented. This novel method was developed in the laboratory to be used in situ and is based on the strength required to withdraw a screw on the surface of degraded timber. Samples of degraded maritime pine (Pinus pinaster Ait.) were submitted to micro-computed tomography (μ-XCT) to quantify density loss. This parameter is highly correlated with mechanical properties thus central for the assessment of timber structural capacity. Density loss values have been correlated with both screw withdrawal force and shear parallel to the grain strength showing significant relationships between these parameters. Using these correlations, the density loss of a degraded element and its shear strength parallel to the grain via the screw withdrawal force can be estimated enabling a valid quantitative assessment of the timber elements residual strength and, therefore, contributing to reduce unnecessary replacement, to boost eco-efficient interventions and to provide foundations required to perform experimental modelling tests.DEC - Departamento de Engenharia CivilRUNParracha, João L.Pereira, Manuel F. C.Maurício, AntónioMachado, José SaporitiFaria, PaulinaNunes, Lina2022-03-25T01:31:01Z2019-06-012019-06-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://doi.org/10.1617/s11527-019-1354-9eng1359-5997PURE: 13757969http://www.scopus.com/inward/record.url?scp=85064700005&partnerID=8YFLogxKhttps://doi.org/10.1617/s11527-019-1354-9info: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:RCAAP2024-05-22T17:41:08Zoai:run.unl.pt:10362/81690Portal AgregadorONGhttps://www.rcaap.pt/oai/openairemluisa.alvim@gmail.comopendoar:71602024-05-22T17:41:08Repositório 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 |
A semi-destructive assessment method to estimate the residual strength of maritime pine structural elements degraded by anobiids |
title |
A semi-destructive assessment method to estimate the residual strength of maritime pine structural elements degraded by anobiids |
spellingShingle |
A semi-destructive assessment method to estimate the residual strength of maritime pine structural elements degraded by anobiids Parracha, João L. Anobiid infestation Damage assessment Micro-computed tomography Screw withdrawal Timber Civil and Structural Engineering Building and Construction Materials Science(all) Mechanics of Materials |
title_short |
A semi-destructive assessment method to estimate the residual strength of maritime pine structural elements degraded by anobiids |
title_full |
A semi-destructive assessment method to estimate the residual strength of maritime pine structural elements degraded by anobiids |
title_fullStr |
A semi-destructive assessment method to estimate the residual strength of maritime pine structural elements degraded by anobiids |
title_full_unstemmed |
A semi-destructive assessment method to estimate the residual strength of maritime pine structural elements degraded by anobiids |
title_sort |
A semi-destructive assessment method to estimate the residual strength of maritime pine structural elements degraded by anobiids |
author |
Parracha, João L. |
author_facet |
Parracha, João L. Pereira, Manuel F. C. Maurício, António Machado, José Saporiti Faria, Paulina Nunes, Lina |
author_role |
author |
author2 |
Pereira, Manuel F. C. Maurício, António Machado, José Saporiti Faria, Paulina Nunes, Lina |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
DEC - Departamento de Engenharia Civil RUN |
dc.contributor.author.fl_str_mv |
Parracha, João L. Pereira, Manuel F. C. Maurício, António Machado, José Saporiti Faria, Paulina Nunes, Lina |
dc.subject.por.fl_str_mv |
Anobiid infestation Damage assessment Micro-computed tomography Screw withdrawal Timber Civil and Structural Engineering Building and Construction Materials Science(all) Mechanics of Materials |
topic |
Anobiid infestation Damage assessment Micro-computed tomography Screw withdrawal Timber Civil and Structural Engineering Building and Construction Materials Science(all) Mechanics of Materials |
description |
In this article, an assessment method to estimate the residual strength of pine structural elements degraded by anobiids is presented. This novel method was developed in the laboratory to be used in situ and is based on the strength required to withdraw a screw on the surface of degraded timber. Samples of degraded maritime pine (Pinus pinaster Ait.) were submitted to micro-computed tomography (μ-XCT) to quantify density loss. This parameter is highly correlated with mechanical properties thus central for the assessment of timber structural capacity. Density loss values have been correlated with both screw withdrawal force and shear parallel to the grain strength showing significant relationships between these parameters. Using these correlations, the density loss of a degraded element and its shear strength parallel to the grain via the screw withdrawal force can be estimated enabling a valid quantitative assessment of the timber elements residual strength and, therefore, contributing to reduce unnecessary replacement, to boost eco-efficient interventions and to provide foundations required to perform experimental modelling tests. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-06-01 2019-06-01T00:00:00Z 2022-03-25T01:31:01Z |
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://doi.org/10.1617/s11527-019-1354-9 |
url |
https://doi.org/10.1617/s11527-019-1354-9 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
1359-5997 PURE: 13757969 http://www.scopus.com/inward/record.url?scp=85064700005&partnerID=8YFLogxK https://doi.org/10.1617/s11527-019-1354-9 |
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.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 |
mluisa.alvim@gmail.com |
_version_ |
1817545708101697536 |