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Non-linear finite element analyses to study the effects of local corrosion on reinforced concrete slabs and shells
Date
2023-09Type
- Other Conference Item
ETH Bibliography
yes
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Abstract
Local corrosion due to the ingress of chlorides is an issue for many existing structures, and assessing affected structures is an essential task in practice. However, few models for the assessment are mechanically consistent and practically applicable to entire structures. The Corroded Tension Chord Model (CTCM) is an analytical model that predicts the mechanical behaviour of concrete elements, capturing the effects caused by local corrosion. It is well-suited for continuum models because it relates the local effects to a reference volume with a length equal to the crack spacing. This paper presents the implementation of the CTCM into a commercial finite element software as a user-defined material for plate and shell elements. The load-deformation behaviour of a bridge deck cantilever with local corrosion is modelled with non-linear finite elements, and the results are presented and discussed. Show more
Publication status
publishedBook title
Capacity Assessment of Corroded Reinforced Concrete Structures. Proceedings of the fib CACRCS 2023Journal / series
fib Symposium ProceedingsVolume
Publisher
International Federation for Structural Concrete (fib)Event
Subject
NLFEA; structural assessment; local corrosion; Pitting; reinforced concrete structuresOrganisational unit
09469 - Kaufmann, Walter / Kaufmann, Walter
Notes
Extended abstract; Conference lecture held on September 14, 2023More
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ETH Bibliography
yes
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