Repository logo
 
Publication

Bond of recycled coarse aggregate concrete: model uncertainty and reliability-based calibration of design equations

2021-07-15Journal article Restricted access
Simple item page
dc.contributor.authorPacheco, João
dc.contributor.authorBrito, Jorge de
dc.contributor.authorChastre, Carlos
dc.contributor.authorEvangelista, Luis
dc.date.accessioned2021-06-24T09:57:03Z
dc.date.available2021-06-24T09:57:03Z
dc.date.issued2021-07-15
dc.description.abstractThis paper concerns the design of lap splice lengths for ribbed steel reinforcement bars embedded in concrete produced with coarse recycled concrete aggregates. Recycled aggregates are weaker and typically lead to concrete with lower tensile strength. Both aspects change the model uncertainty of bond strength formulae and a major topic of the paper is the influence of recycled aggregates on the model uncertainty of the bond strength model of fib Bulletin 72. A stochastic model for this model uncertainty is developed from a meta-analysis. The model uncertainty, estimated from analogue specimens made with either natural aggregate concrete or recycled aggregate concrete, is compared and the incorporation of recycled aggregates was indeed found to have a detrimental influence on the model uncertainty. A partial factor for lap splice length design is calibrated through reliability analyses so that the probability of failure of the bond length design of recycled aggregate concrete is equivalent to that of natural aggregate concrete. Two design equations were studied: that of the fib Bulletin 72 and that of the D6 draft of the second generation of Eurocode 2.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationPACHECO, João Nuno; [et al] – Bond of recycled coarse aggregate concrete: Model uncertainty and reliability-based calibration of design equations. Engineering Structures. ISSN 0141-0296. Vol. 239 (2021), pp. 1-13pt_PT
dc.identifier.doi10.1016/j.engstruct.2021.112290pt_PT
dc.identifier.eissn1873-7323
dc.identifier.issn0141-0296
dc.identifier.urihttp://hdl.handle.net/10400.21/13478
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationPD/BD/113643/2015 - EcoCoRe doctoral program grant of the FCTpt_PT
dc.relation.publisherversionhttps://reader.elsevier.com/reader/sd/pii/S0141029621004405?token=5A29E684986DE6D39253B7207208EEF49BA7B50056C8E6E4EAD99CB0FB0A1576E487C56459D192C4324B2D393FB09B51&originRegion=eu-west-1&originCreation=20210624094730pt_PT
dc.subjectBond strengthpt_PT
dc.subjectReliability analysispt_PT
dc.subjectModel uncertaintypt_PT
dc.subjectRecycled aggregate concretept_PT
dc.subjectEurocode 2pt_PT
dc.titleBond of recycled coarse aggregate concrete: model uncertainty and reliability-based calibration of design equationspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage13pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleEngineering Structurespt_PT
oaire.citation.volume239pt_PT
person.familyNamePacheco
person.familyNameCaliço Lopes de Brito
person.familyNameChastre
person.familyNameFaria Rocha Evangelista
person.givenNameJoão
person.givenNameJorge Manuel
person.givenNameCarlos
person.givenNameLuís Manuel
person.identifier1007584
person.identifierA-4299-2008
person.identifierB-9864-2011
person.identifier.ciencia-idD414-B33B-01E0
person.identifier.ciencia-id921D-3921-8308
person.identifier.ciencia-idA612-1A5B-D93D
person.identifier.orcid0000-0001-9348-1226
person.identifier.orcid0000-0001-6766-2736
person.identifier.orcid0000-0002-7708-6995
person.identifier.orcid0000-0001-8406-6864
person.identifier.ridR-2558-2016
person.identifier.ridC-6746-2008
person.identifier.scopus-author-id56800010700
person.identifier.scopus-author-id7003285554
person.identifier.scopus-author-id36008057200
person.identifier.scopus-author-id57201241744
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication72875b42-767e-4153-a2ec-1fc07cab3918
relation.isAuthorOfPublicationebc80e57-531a-4fe5-ac87-4d8382b7de2e
relation.isAuthorOfPublicationf632d2fc-caf8-4621-9e21-858a26ffcfd1
relation.isAuthorOfPublication8463f3f2-8bac-44bf-82af-6d46db906c73
relation.isAuthorOfPublication.latestForDiscoveryf632d2fc-caf8-4621-9e21-858a26ffcfd1

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
Bond_LEvangelista.pdf
Size:
1.18 MB
Format:
Adobe Portable Document Format
Download

Collections

ISEL - Eng. Civil - Artigos