Publicação
Simultaneous flexural and punching strengthening of RC slabs according to a new hybrid technique using U-shape CFRP laminates
| Resumo: | One of the main concerns related to flat reinforced-concrete (RC) slabs is the slab’s punching capacity. Punching can occur not only due to a deficient transverse reinforcement, but also when the flexural capacity of the slab needs to be increased. To increase the flexural capacity, carbon-fiber-reinforced-polymer (CFRP) composites have been applied according to near-surface-mounted (NSM) or external-bonded-reinforcement (EBR) techniques, while for the punching strengthening CFRP reinforcements have been applied according to embedded-through-section (ETS) technique. To take advantage of strengthening benefits of the NSM and ETS techniques, in the present paper a new type of CFRP laminate of U-shape is used by adopting a novel hybrid technique for the simultaneous flexural and punching strengthening of existing RC slabs. Besides, this hybrid technique aims to provide a better bond performance for the ETS and NSM CFRPs by improving the anchorage conditions. Moreover, a higher resistance to the susceptibility of occurrence of other premature failure modes, like concrete cover delamination, is offered by using this hybrid technique. A 3D nonlinear finite-element (FE) model is developed to simulate the experimental tests by considering the nonlinear behavior of the constituent materials. The experimental program and numerical model are described, and the relevant results are analyzed. |
|---|---|
| Autores principais: | Barros, Joaquim A. O. |
| Outros Autores: | Rezazadeh, Mohammadali; Laranjeira, J. P. S.; Hosseini, M. R. M.; Mastali, Mohammad; Ramezansefat, H. |
| Assunto: | Flexural strengthening punching shear strengthening RC slabs CFRP reinforcement FE model Engenharia e Tecnologia::Engenharia Civil |
| Ano: | 2017 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade do Minho |
| Idioma: | inglês |
| Origem: | RepositóriUM - Universidade do Minho |
| _version_ | 1867439770446069760 |
|---|---|
| author | Barros, Joaquim A. O. |
| author2 | Rezazadeh, Mohammadali Laranjeira, J. P. S. Hosseini, M. R. M. Mastali, Mohammad Ramezansefat, H. |
| author2_role | author author author author author |
| author_facet | Barros, Joaquim A. O. Rezazadeh, Mohammadali Laranjeira, J. P. S. Hosseini, M. R. M. Mastali, Mohammad Ramezansefat, H. |
| author_role | author |
| contributor_name_str_mv | RepositóriUM - Universidade do Minho |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Barros, Joaquim A. O.\"},{\"Person.name\":\"Rezazadeh, Mohammadali\"},{\"Person.name\":\"Laranjeira, J. P. S.\"},{\"Person.name\":\"Hosseini, M. R. M.\"},{\"Person.name\":\"Mastali, Mohammad\"},{\"Person.name\":\"Ramezansefat, H.\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | RepositóriUM - Universidade do Minho |
| datacite.creators.creator.creatorName.fl_str_mv | Barros, Joaquim A. O. Rezazadeh, Mohammadali Laranjeira, J. P. S. Hosseini, M. R. M. Mastali, Mohammad Ramezansefat, H. |
| datacite.date.Accepted.fl_str_mv | 2017-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2017-04-24T13:02:51Z |
| datacite.date.embargoed.fl_str_mv | 2017-04-24T13:02:51Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | Flexural strengthening punching shear strengthening RC slabs CFRP reinforcement FE model Engenharia e Tecnologia::Engenharia Civil |
| datacite.titles.title.fl_str_mv | Simultaneous flexural and punching strengthening of RC slabs according to a new hybrid technique using U-shape CFRP laminates |
| dc.contributor.none.fl_str_mv | RepositóriUM - Universidade do Minho |
| dc.creator.none.fl_str_mv | Barros, Joaquim A. O. Rezazadeh, Mohammadali Laranjeira, J. P. S. Hosseini, M. R. M. Mastali, Mohammad Ramezansefat, H. |
| dc.date.Accepted.fl_str_mv | 2017-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2017-04-24T13:02:51Z |
| dc.date.embargoed.fl_str_mv | 2017-04-24T13:02:51Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | https://hdl.handle.net/1822/45426 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | Elsevier |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | Flexural strengthening punching shear strengthening RC slabs CFRP reinforcement FE model Engenharia e Tecnologia::Engenharia Civil |
| dc.title.fl_str_mv | Simultaneous flexural and punching strengthening of RC slabs according to a new hybrid technique using U-shape CFRP laminates |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | One of the main concerns related to flat reinforced-concrete (RC) slabs is the slab’s punching capacity. Punching can occur not only due to a deficient transverse reinforcement, but also when the flexural capacity of the slab needs to be increased. To increase the flexural capacity, carbon-fiber-reinforced-polymer (CFRP) composites have been applied according to near-surface-mounted (NSM) or external-bonded-reinforcement (EBR) techniques, while for the punching strengthening CFRP reinforcements have been applied according to embedded-through-section (ETS) technique. To take advantage of strengthening benefits of the NSM and ETS techniques, in the present paper a new type of CFRP laminate of U-shape is used by adopting a novel hybrid technique for the simultaneous flexural and punching strengthening of existing RC slabs. Besides, this hybrid technique aims to provide a better bond performance for the ETS and NSM CFRPs by improving the anchorage conditions. Moreover, a higher resistance to the susceptibility of occurrence of other premature failure modes, like concrete cover delamination, is offered by using this hybrid technique. A 3D nonlinear finite-element (FE) model is developed to simulate the experimental tests by considering the nonlinear behavior of the constituent materials. The experimental program and numerical model are described, and the relevant results are analyzed. |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
| fulltext.url.fl_str_mv | https://repositorium.uminho.pt/bitstreams/6d345c0e-e582-4b04-9777-7c517767362b/download |
| id | rum_6ed60bb41c1a48b65a09cf60faed94b3 |
| identifier.url.fl_str_mv | https://hdl.handle.net/1822/45426 |
| instacron_str | repositorium |
| institution | Universidade do Minho |
| instname_str | Universidade do Minho |
| language | eng |
| network_acronym_str | rum |
| network_name_str | RepositóriUM - Universidade do Minho |
| oai_identifier_str | oai:repositorium.uminho.pt:1822/45426 |
| organization_str_mv | urn:organizationAcronym:repositorium |
| person_str_mv | Barros, Joaquim A. O. Rezazadeh, Mohammadali Laranjeira, J. P. S. Hosseini, M. R. M. Mastali, Mohammad Ramezansefat, H. |
| publishDate | 2017 |
| publisher.none.fl_str_mv | Elsevier |
| reponame_str | RepositóriUM - Universidade do Minho |
| repository_id_str | urn:repositoryAcronym:rum |
| service_str_mv | urn:repositoryAcronym:rum |
| spelling | engElsevierporOne of the main concerns related to flat reinforced-concrete (RC) slabs is the slab’s punching capacity. Punching can occur not only due to a deficient transverse reinforcement, but also when the flexural capacity of the slab needs to be increased. To increase the flexural capacity, carbon-fiber-reinforced-polymer (CFRP) composites have been applied according to near-surface-mounted (NSM) or external-bonded-reinforcement (EBR) techniques, while for the punching strengthening CFRP reinforcements have been applied according to embedded-through-section (ETS) technique. To take advantage of strengthening benefits of the NSM and ETS techniques, in the present paper a new type of CFRP laminate of U-shape is used by adopting a novel hybrid technique for the simultaneous flexural and punching strengthening of existing RC slabs. Besides, this hybrid technique aims to provide a better bond performance for the ETS and NSM CFRPs by improving the anchorage conditions. Moreover, a higher resistance to the susceptibility of occurrence of other premature failure modes, like concrete cover delamination, is offered by using this hybrid technique. A 3D nonlinear finite-element (FE) model is developed to simulate the experimental tests by considering the nonlinear behavior of the constituent materials. The experimental program and numerical model are described, and the relevant results are analyzed.application/pdfporSimultaneous flexural and punching strengthening of RC slabs according to a new hybrid technique using U-shape CFRP laminatesBarros, Joaquim A. O.Rezazadeh, MohammadaliLaranjeira, J. P. S.Hosseini, M. R. M.Mastali, MohammadRamezansefat, H.HostingInstitutionOrganizationalRepositóriUM - Universidade do Minhoe-mailmailto:repositorium@usdb.uminho.ptrepositorium@usdb.uminho.ptISSNIsPartOf0263-8223EISSNIsPartOf1879-1085DOIIsPartOf10.1016/j.compstruct.2016.10.0092017-04-24T13:02:51Z2017-012017-01-01T00:00:00ZHandlehttps://hdl.handle.net/1822/45426http://purl.org/coar/access_right/c_abf2open accessFlexural strengtheningpunching shear strengtheningRC slabsCFRP reinforcementFE modelhttp://www.oecd.org/science/inno/38235147.pdfFields of Science and Technology (FOS)Engenharia e Tecnologia::Engenharia Civil2383051 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal articlehttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://repositorium.uminho.pt/bitstreams/6d345c0e-e582-4b04-9777-7c517767362b/download |
| spellingShingle | Simultaneous flexural and punching strengthening of RC slabs according to a new hybrid technique using U-shape CFRP laminates Barros, Joaquim A. O. Flexural strengthening punching shear strengthening RC slabs CFRP reinforcement FE model Engenharia e Tecnologia::Engenharia Civil |
| status | SINGLETON |
| subject.fl_str_mv | Flexural strengthening punching shear strengthening RC slabs CFRP reinforcement FE model |
| subject.other.fl_str_mv | Engenharia e Tecnologia::Engenharia Civil |
| title | Simultaneous flexural and punching strengthening of RC slabs according to a new hybrid technique using U-shape CFRP laminates |
| title_full | Simultaneous flexural and punching strengthening of RC slabs according to a new hybrid technique using U-shape CFRP laminates |
| title_fullStr | Simultaneous flexural and punching strengthening of RC slabs according to a new hybrid technique using U-shape CFRP laminates |
| title_full_unstemmed | Simultaneous flexural and punching strengthening of RC slabs according to a new hybrid technique using U-shape CFRP laminates |
| title_short | Simultaneous flexural and punching strengthening of RC slabs according to a new hybrid technique using U-shape CFRP laminates |
| title_sort | Simultaneous flexural and punching strengthening of RC slabs according to a new hybrid technique using U-shape CFRP laminates |
| topic | Flexural strengthening punching shear strengthening RC slabs CFRP reinforcement FE model Engenharia e Tecnologia::Engenharia Civil |
| topic_facet | Flexural strengthening punching shear strengthening RC slabs CFRP reinforcement FE model Engenharia e Tecnologia::Engenharia Civil |
| url | https://hdl.handle.net/1822/45426 |
| visible | 1 |