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Experimental characterization of the out-of-plane behaviour of masonry infill walls made of lightweight concrete blocks

2021-10-01Artigo científico Acesso restrito
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datacite.subject.fosEngenharia e Tecnologia::Engenharia Civil
datacite.subject.sdg07:Energias Renováveis e Acessíveis
datacite.subject.sdg11:Cidades e Comunidades Sustentáveis
dc.contributor.authorAgante, Marta
dc.contributor.authorFurtado, André
dc.contributor.authorRodrigues, Hugo
dc.contributor.authorArêde, António
dc.contributor.authorFernandes, Paulo
dc.contributor.authorVarum, Humberto
dc.date.accessioned2026-01-21T09:57:01Z
dc.date.available2026-01-21T09:57:01Z
dc.date.issued2021-10-01
dc.description.abstractMasonry infill walls are widely spread over the reinforced concrete buildings due to different demands. The buildings' thermal energy efficiency is a top priority nowadays since many of the existing building stock comprises buildings with low energy performance. The buildings' external envelope is undergoing a transformation with the vertical hollow concrete blocks' appearance with high thermal and acoustic demands. However, recent evidence from a strong earthquake shows that the masonry infill walls are quite vulnerable to out-of-plane loadings and were responsible for many casualties, injuries and economic losses. Based on that, this work's main objective is to study the out-of-plane (OOP) behaviour of masonry infills made with vertical hollow concrete blocks. The experimental campaign comprises the OOP testing of three full-scale infill walls made up of these masonry units, one of them as-built without previous damage, one with previous damage due to an earlier in-plane test and the third one retrofitted. All the tests consisted of applying the loading–unloading-reloading history of imposed displacements in the OOP direction through a uniformly distributed load. The results will be presented in terms of OOP force–displacement responses, damage evolution and energy dissipation capacity. The test results are compared to assess the previous damage effect and the retrofit technique's effectiveness. A final study is presented concerning the masonry unit and slenderness effect with other literature results.eng
dc.description.sponsorshipThis work was financially supported by: Project POCI-01-0145-FEDER-007457 - CONSTRUCT - Institute of R&D In Structures and Construction funded by FEDER funds through COMPETE2020 - Programa Operacional Competitividade e Internacionalização and by national funds through FCT - Fundação para a Ciência e a Tecnologia. This work was also supported by the Foundation for Science and Technology (FCT) - Aveiro Research Centre for Risks and Sustainability in Construction (RISCO), Universidade de Aveiro, Portugal [FCT/UIDB/ECI/04450/2020]. The authors would also like to express a special acknowledgement to the reviewers for their valuable suggestions that increased the manuscript quality. The authors would also like to acknowledge the Laboratory of Earthquake and Structural Engineering (LESE) technicians, Mr. Guilherme Nogueira and Mr. Nuno Pinto, for their support during the experimental activity in this research work.
dc.identifier.citationMarta Agante, André Furtado, Hugo Rodrigues, António Arêde, Paulo Fernandes, Humberto Varum, Experimental characterization of the out-of-plane behaviour of masonry infill walls made of lightweight concrete blocks, Engineering Structures, Volume 244, 2021, 112755, ISSN 0141-0296, https://doi.org/10.1016/j.engstruct.2021.112755.
dc.identifier.doi10.1016/j.engstruct.2021.112755
dc.identifier.eissn1873-7323
dc.identifier.issn0141-0296
dc.identifier.urihttp://hdl.handle.net/10400.8/15431
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relation.hasversionhttps://www.sciencedirect.com/science/article/pii/S0141029621009056?via%3Dihub
dc.relation.ispartofEngineering Structures
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectMasonry infill walls
dc.subjectLightweight concrete blocks
dc.subjectOut-of-plane behaviour
dc.subjectExperimental testing
dc.subjectForce-displacement
dc.subjectEnergy dissipation
dc.titleExperimental characterization of the out-of-plane behaviour of masonry infill walls made of lightweight concrete blockseng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage24
oaire.citation.startPage1
oaire.citation.titleEngineering Structures
oaire.citation.volume244
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameBaptista Agante
person.familyNameFernandes
person.givenNameMarta Alexandra
person.givenNamePaulo
person.identifier.ciencia-id3316-D232-B9E3
person.identifier.ciencia-idF41A-AFFE-B165
person.identifier.orcid0000-0003-4993-1968
person.identifier.orcid0000-0002-5644-8889
person.identifier.scopus-author-id56701925300
relation.isAuthorOfPublication297a9fd9-1e66-4868-9046-513f32a89740
relation.isAuthorOfPublication7375e114-0963-49a2-be76-c52dd45c0338
relation.isAuthorOfPublication.latestForDiscovery297a9fd9-1e66-4868-9046-513f32a89740

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Masonry infill walls are widely spread over the reinforced concrete buildings due to different demands. The buildings' thermal energy efficiency is a top priority nowadays since many of the existing building stock comprises buildings with low energy performance. The buildings' external envelope is undergoing a transformation with the vertical hollow concrete blocks' appearance with high thermal and acoustic demands. However, recent evidence from a strong earthquake shows that the masonry infill walls are quite vulnerable to out-of-plane loadings and were responsible for many casualties, injuries and economic losses. Based on that, this work's main objective is to study the out-of-plane (OOP) behaviour of masonry infills made with vertical hollow concrete blocks. The experimental campaign comprises the OOP testing of three full-scale infill walls made up of these masonry units, one of them as-built without previous damage, one with previous damage due to an earlier in-plane test and the third one retrofitted. All the tests consisted of applying the loading–unloading-reloading history of imposed displacements in the OOP direction through a uniformly distributed load. The results will be presented in terms of OOP force–displacement responses, damage evolution and energy dissipation capacity. The test results are compared to assess the previous damage effect and the retrofit technique's effectiveness. A final study is presented concerning the masonry unit and slenderness effect with other literature results.
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