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dc.contributor.author
Studer, Patrick
dc.contributor.author
Taras, Andreas
dc.date.accessioned
2023-03-21T07:14:38Z
dc.date.available
2023-03-21T04:13:00Z
dc.date.available
2023-03-21T07:14:38Z
dc.date.issued
2023-06
dc.identifier.issn
0143-974X
dc.identifier.other
10.1016/j.jcsr.2023.107879
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/604167
dc.identifier.doi
10.3929/ethz-b-000604167
dc.description.abstract
Cross-sectional classification forms a relevant preliminary condition for the selection of the appropriate resistance models in the design of structural steel elements. It is thus important that cross-sections are correctly classified, as this determines their utilisation. The focus of this paper lies on the analysis of the transition point between cross-sectional classes 2 (compact) and 3 (elastic sections) for typical steel cross-section shapes. In particular, it studies how various degrees of strain hardening and ratios between ultimate and yield strength influence this transition point, which defines whether the plastic moment resistance of a section can be exploited. Based on numerical simulations on short beams, calibrated against full-scale tests, three independent cases were investigated i) outstand flanges and similar elements supported along one longitudinal edge loaded in pure compression, ii) webs and other internal elements supported along two edges, loaded in pure bending and iii) elements supported along two edges, loaded in pure compression. The first eigenform retrieved from the lateral buckling analysis (LBA) was used as initial imperfection for the geometric and material non-linear analysis (GMNIA). The results of the numerical simulations were analysed: in particular, the maximum achieved moment was compared with the theoretical plastic moment resistance. From these analyses, generalised observations could be made on whether the plastic moment resistance could be reached or not and consequently whether the cross-section should be assigned to class 2 or 3. Consequently, limit slenderness values could be determined and correlations to the hardening behaviour could be found and integrated into corresponding formulas.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Elsevier
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.subject
Cross-sectional classification
en_US
dc.subject
Numerical modelling
en_US
dc.subject
Slenderness limits
en_US
dc.subject
Strain-hardening
en_US
dc.title
Strain-hardening dependent cross-sectional slenderness limits for the plastic resistance of steel beams
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2023-03-11
ethz.journal.title
Journal of Constructional Steel Research
ethz.journal.volume
205
en_US
ethz.journal.abbreviated
J. Constr. steel res.
ethz.pages.start
107879
en_US
ethz.size
15 p.
en_US
ethz.version.deposit
publishedVersion
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::09660 - Taras, Andreas / Taras, Andreas
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::09660 - Taras, Andreas / Taras, Andreas
ethz.relation.isPreviousVersionOf
10.3929/ethz-b-000649118
ethz.date.deposited
2023-03-21T04:13:01Z
ethz.source
SCOPUS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2023-03-21T07:14:39Z
ethz.rosetta.lastUpdated
2024-02-02T21:13:17Z
ethz.rosetta.versionExported
true
ethz.COinS
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