Eurocode shear design of coarse recycled aggregate concrete
| Autor(a) principal: | |
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| Data de Publicação: | 2021 |
| 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/10362/134692 |
Resumo: | PD/BD/113643/2015 |
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Eurocode shear design of coarse recycled aggregate concreteReliability analysis and partial factor calibrationCoarse recycled concrete aggregatesEN1992Partial factor calibrationPrEN1992Recycled aggregate concreteReliability analysisShearStructural concreteMaterials Science(all)Condensed Matter PhysicsPD/BD/113643/2015This paper contributes to the definition of design clauses for coarse recycled aggregate concrete. One of the main reasons for scepticism towards recycled aggregate concrete is the per-ceived notion that the heterogeneity of recycled aggregates may increase the uncertainty of the behaviour of concrete. Therefore, the paper uses structural reliability concepts to propose partial factors for recycled aggregate concrete’s design for shear failure. The paper builds upon a previous publication by the authors, in which the model uncertainty of recycled aggregate concrete elements designed for shear, with and without shear reinforcement, was compared with that of natural aggregate concrete elements. In that paper, the statistics of the model uncertainty for recycled aggregate concrete shear design were indeed found to be less favourable than those of natural aggregate concrete. Therefore, a partial factor for recycled aggregate concrete design is needed to ensure safety. This paper presents partial factors calibrated with explicit reliability analyses for different cases of design concerning beams (in the case of shear design of elements with shear reinforcement) and slabs (for the design of elements without shear reinforcement). For full incorporation of coarse recycled concrete aggregates and the design of elements without shear reinforcement, the calibrated partial factor reduces the design value of shear resistance by 10% (design with EN1992) or 15% (design with prEN1992) in comparison to natural aggregate concrete’s design. For the shear design of elements with shear reinforcement, the partial factor decreases resistance by 5% but a sensitivity analysis showed that the reduction might be, under pessimistic expectations, of up to 20%.DEC - Departamento de Engenharia CivilCERIS - Polo NOVARUNPacheco, Joãode Brito, JorgeChastre, CarlosEvangelista, Luís2022-03-16T23:23:36Z2021-08-012021-08-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10362/134692eng1996-1944PURE: 42160141https://doi.org/10.3390/ma14154081info: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:RCAAP2024-03-11T05:13:09Zoai:run.unl.pt:10362/134692Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:48:12.306601Repositório 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 |
Eurocode shear design of coarse recycled aggregate concrete Reliability analysis and partial factor calibration |
| title |
Eurocode shear design of coarse recycled aggregate concrete |
| spellingShingle |
Eurocode shear design of coarse recycled aggregate concrete Pacheco, João Coarse recycled concrete aggregates EN1992 Partial factor calibration PrEN1992 Recycled aggregate concrete Reliability analysis Shear Structural concrete Materials Science(all) Condensed Matter Physics |
| title_short |
Eurocode shear design of coarse recycled aggregate concrete |
| title_full |
Eurocode shear design of coarse recycled aggregate concrete |
| title_fullStr |
Eurocode shear design of coarse recycled aggregate concrete |
| title_full_unstemmed |
Eurocode shear design of coarse recycled aggregate concrete |
| title_sort |
Eurocode shear design of coarse recycled aggregate concrete |
| author |
Pacheco, João |
| author_facet |
Pacheco, João de Brito, Jorge Chastre, Carlos Evangelista, Luís |
| author_role |
author |
| author2 |
de Brito, Jorge Chastre, Carlos Evangelista, Luís |
| author2_role |
author author author |
| dc.contributor.none.fl_str_mv |
DEC - Departamento de Engenharia Civil CERIS - Polo NOVA RUN |
| dc.contributor.author.fl_str_mv |
Pacheco, João de Brito, Jorge Chastre, Carlos Evangelista, Luís |
| dc.subject.por.fl_str_mv |
Coarse recycled concrete aggregates EN1992 Partial factor calibration PrEN1992 Recycled aggregate concrete Reliability analysis Shear Structural concrete Materials Science(all) Condensed Matter Physics |
| topic |
Coarse recycled concrete aggregates EN1992 Partial factor calibration PrEN1992 Recycled aggregate concrete Reliability analysis Shear Structural concrete Materials Science(all) Condensed Matter Physics |
| description |
PD/BD/113643/2015 |
| publishDate |
2021 |
| dc.date.none.fl_str_mv |
2021-08-01 2021-08-01T00:00:00Z 2022-03-16T23:23:36Z |
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info:eu-repo/semantics/publishedVersion |
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info:eu-repo/semantics/article |
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article |
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publishedVersion |
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http://hdl.handle.net/10362/134692 |
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http://hdl.handle.net/10362/134692 |
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eng |
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eng |
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1996-1944 PURE: 42160141 https://doi.org/10.3390/ma14154081 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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