Moment redistribution and strain localisation in two-span concrete slab strips reinforced with low strain hardening steel

Medientyp: Elektronischer Konferenzbericht
Titel: Moment redistribution and strain localisation in two-span concrete slab strips reinforced with low strain hardening steel
Beteiligte: Reckinger, Nathalie [Verfasser:in]; id_orcid0 000-0003-0733-2131 [Verfasser:in]; Thoma, Karel [Verfasser:in]; id_orcid0 000-0002-0994-840X [Verfasser:in]; Kaufmann, Walter [Verfasser:in]; id_orcid0 000-0002-8415-4896 [Verfasser:in]
Erschienen: International Federation for Structural Concrete, 2022
Erschienen in: fib Symposium Proceedings, 58 ; Proceedings of the 14th fib International PhD Symposium in Civil Engineering
Sprache: Englisch
DOI: https://doi.org/20.500.11850/589879; https://doi.org/10.3929/ethz-b-000589879
ISBN: 978-2-940643-17-2; 978-2-940643-17-2
Schlagwörter: Civil engineering
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Beschreibung: Structural engineering design rules given in modern standards are often based on the lower-bound theorem of the Theory of Plasticity. Hence, they rely on a sufficient deformation capacity of the structure and its components. This paper presents preliminary results of a test series of three two-span continuous slab strips reinforced with bars whose stress-strain characteristic exhibits a large ultimate strain, but hardly any strain hardening over a major part of the inelastic range. While the lack of strain hardening causes a pronounced strain localisation, the large ultimate strain of the reinforcing bars enables considerable ultimate deflections. Moment redistributions from the intermediate support section to the span are observed while the plastic hinge at the support softens. ; ISSN:2617-4820
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