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dc.contributor.author
Lee, Minu
dc.contributor.author
Mata Falcón, Jaime
dc.contributor.author
Popescu, Mariana
dc.contributor.author
Kaufmann, Walter
dc.date.accessioned
2023-09-07T11:52:23Z
dc.date.available
2023-05-17T08:47:57Z
dc.date.available
2023-05-17T09:36:06Z
dc.date.available
2023-09-07T11:52:23Z
dc.date.issued
2023-08
dc.identifier.issn
1464-4177
dc.identifier.issn
1751-7648
dc.identifier.other
10.1002/suco.202200648
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/612559
dc.identifier.doi
10.3929/ethz-b-000612559
dc.description.abstract
Thin-walled textile-reinforced concrete beams have recently emerged as a promising approach for material-efficient design. However, the increased complexity of the formwork is a major challenge in implementing such elements for broader use in the construction industry. This study presents a novel type of stay-in-place flexible formworks with integrated textile reinforcement. The use of weft-knitted textiles allows the integration of continuous high-strength rovings as shear reinforcement and the introduction of spatial features within the fabric to guide bending-active rods to shape the complex cross-section geometry. The manufacturing procedure and the structural performance were investigated in an experimental campaign consisting of four concrete beams with I-profile cross sections tested in three-point bending, where aramid rovings were used for the shear and conventional deformed steel bars for the flexural reinforcement. The transverse reinforcement ratio proved to be essential in increasing the shear strength. Thereby, the use of digital image correlation measurements of the surface deformations allowed the direct assessment of the strains and, thus, the mechanical activation of the textile reinforcement. The full tensile capacity of all the aramid rovings crossing the governing crack could not be exploited due to the brittle material behavior, resulting in a progressive failure once the first roving reached its tensile strength. Compatibility-based stress fields were used to predict the load-deformation and failure behavior of the tested beams, which resulted in an excellent agreement of the ultimate loads and failure modes obtained from the model with the observations and results from the experiments.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Wiley
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.subject
Crack behavior
en_US
dc.subject
Digital image correlation
en_US
dc.subject
Experimental study
en_US
dc.subject
KnitCrete
en_US
dc.subject
Lightweight Concrete structures
en_US
dc.subject
Shear
en_US
dc.subject
Textile-reinforced concrete
en_US
dc.title
Thin‐walled concrete beams with stay‐in‐place flexible formworks and integrated textile shear reinforcement
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2023-05-02
ethz.journal.title
Structural Concrete
ethz.journal.volume
24
en_US
ethz.journal.issue
4
en_US
ethz.journal.abbreviated
Struct. concr.
ethz.pages.start
4960
en_US
ethz.pages.end
4977
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.grant
Digital Fabrication - Advanced Building Processes in Architecture
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Oxford
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02115 - Dep. Bau, Umwelt und Geomatik / Dep. of Civil, Env. and Geomatic Eng.::02605 - Institut für Baustatik u. Konstruktion / Institute of Structural Engineering::09469 - Kaufmann, Walter / Kaufmann, Walter
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02100 - Dep. Architektur / Dep. of Architecture::02284 - NFS Digitale Fabrikation / NCCR Digital Fabrication
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02115 - Dep. Bau, Umwelt und Geomatik / Dep. of Civil, Env. and Geomatic Eng.::02605 - Institut für Baustatik u. Konstruktion / Institute of Structural Engineering::09469 - Kaufmann, Walter / Kaufmann, Walter
en_US
ethz.grant.agreementno
141853
ethz.grant.fundername
SNF
ethz.grant.funderDoi
10.13039/501100001711
ethz.grant.program
NCCR (NFS)
ethz.relation.isSupplementedBy
10.3929/ethz-b-000555795
ethz.date.deposited
2023-05-17T08:47:57Z
ethz.source
FORM
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2023-09-07T11:52:25Z
ethz.rosetta.lastUpdated
2023-09-07T11:52:25Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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