Interlayer influence on timber-LWAC composite structures with screw connections
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://repositorio.lnec.pt:8080/jspui/handle/123456789/1002219 |
Resumo: | Timber-concrete composite structures are often used as upgrade solutions for existent timber floors. The timber cross section is maintained and a concrete layer is poured over the floorboard surface. Floorboards help with loading distribution on the beams. The study presented is based on laboratory tests that used specimens made with a lightweight aggregate concrete (LWAC). The use of this type of concrete, compared with normal weight concrete (NWC), has the advantage of lower dead weights, and might be very important in many cases, namely, when the supporting structure has limited strength. Many design works of timber-concrete composite connections do not take into account the timber interlayer, which is known to reduce the load-carrying capacity and the stiffness of the connection. Previous investigations of NWC found that the inclusion of the interlayer leads to average reductions of 30% and 50% for the load capacity and slip modulus, respectively. The current investigation with LWAC found that such reductions are up to 10 and 30%, respectively. DOI: 10.1061/(ASCE)ST.1943-541X.0000299. © 2011 American Society of Civil Engineers. |
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Interlayer influence on timber-LWAC composite structures with screw connectionsComposite structuresWoodLightweight concreteLaboratory testsBendingInterfacesRehabilitationConnectionsWood structuresComposite beamsInterface shearTimber-concrete composite structures are often used as upgrade solutions for existent timber floors. The timber cross section is maintained and a concrete layer is poured over the floorboard surface. Floorboards help with loading distribution on the beams. The study presented is based on laboratory tests that used specimens made with a lightweight aggregate concrete (LWAC). The use of this type of concrete, compared with normal weight concrete (NWC), has the advantage of lower dead weights, and might be very important in many cases, namely, when the supporting structure has limited strength. Many design works of timber-concrete composite connections do not take into account the timber interlayer, which is known to reduce the load-carrying capacity and the stiffness of the connection. Previous investigations of NWC found that the inclusion of the interlayer leads to average reductions of 30% and 50% for the load capacity and slip modulus, respectively. The current investigation with LWAC found that such reductions are up to 10 and 30%, respectively. DOI: 10.1061/(ASCE)ST.1943-541X.0000299. © 2011 American Society of Civil Engineers.University of Michigan2011-07-01T16:37:30Z2014-10-09T14:54:29Z2017-04-12T16:14:36Z2011-05-01T00:00:00Z2011-05info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://repositorio.lnec.pt:8080/jspui/handle/123456789/1002219engJorge, L.Lopes, S.Cruz, H.info: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:RCAAP2023-04-01T03:00:57ZPortal AgregadorONG |
dc.title.none.fl_str_mv |
Interlayer influence on timber-LWAC composite structures with screw connections |
title |
Interlayer influence on timber-LWAC composite structures with screw connections |
spellingShingle |
Interlayer influence on timber-LWAC composite structures with screw connections Jorge, L. Composite structures Wood Lightweight concrete Laboratory tests Bending Interfaces Rehabilitation Connections Wood structures Composite beams Interface shear |
title_short |
Interlayer influence on timber-LWAC composite structures with screw connections |
title_full |
Interlayer influence on timber-LWAC composite structures with screw connections |
title_fullStr |
Interlayer influence on timber-LWAC composite structures with screw connections |
title_full_unstemmed |
Interlayer influence on timber-LWAC composite structures with screw connections |
title_sort |
Interlayer influence on timber-LWAC composite structures with screw connections |
author |
Jorge, L. |
author_facet |
Jorge, L. Lopes, S. Cruz, H. |
author_role |
author |
author2 |
Lopes, S. Cruz, H. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Jorge, L. Lopes, S. Cruz, H. |
dc.subject.por.fl_str_mv |
Composite structures Wood Lightweight concrete Laboratory tests Bending Interfaces Rehabilitation Connections Wood structures Composite beams Interface shear |
topic |
Composite structures Wood Lightweight concrete Laboratory tests Bending Interfaces Rehabilitation Connections Wood structures Composite beams Interface shear |
description |
Timber-concrete composite structures are often used as upgrade solutions for existent timber floors. The timber cross section is maintained and a concrete layer is poured over the floorboard surface. Floorboards help with loading distribution on the beams. The study presented is based on laboratory tests that used specimens made with a lightweight aggregate concrete (LWAC). The use of this type of concrete, compared with normal weight concrete (NWC), has the advantage of lower dead weights, and might be very important in many cases, namely, when the supporting structure has limited strength. Many design works of timber-concrete composite connections do not take into account the timber interlayer, which is known to reduce the load-carrying capacity and the stiffness of the connection. Previous investigations of NWC found that the inclusion of the interlayer leads to average reductions of 30% and 50% for the load capacity and slip modulus, respectively. The current investigation with LWAC found that such reductions are up to 10 and 30%, respectively. DOI: 10.1061/(ASCE)ST.1943-541X.0000299. © 2011 American Society of Civil Engineers. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-07-01T16:37:30Z 2011-05-01T00:00:00Z 2011-05 2014-10-09T14:54:29Z 2017-04-12T16:14:36Z |
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://repositorio.lnec.pt:8080/jspui/handle/123456789/1002219 |
url |
http://repositorio.lnec.pt:8080/jspui/handle/123456789/1002219 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
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 |
University of Michigan |
publisher.none.fl_str_mv |
University of Michigan |
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) |
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