New conceptual approach combining the probabilistic nature of localised rebar corrosion and the load-deformation behaviour
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Author / Producer
Date
2021
Publication Type
Conference Paper
ETH Bibliography
yes
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Abstract
There is a need for sound engineering models and concepts taking into account the damage mechanisms of chloride-induced corrosion with respect to the load-bearing behaviour of reinforced concrete structures. In this paper, we present a novel conceptual approach combining the physical-electrochemical processes of chloride-induced corrosion initiation/propagation with the mechanical aspects of load-deformation behaviour. A particular focus lies on the stochastic nature of localised corrosion and the relevance of the location of corrosion for the load-bearing behaviour, which is considered with the Corroded Tension Chord Model (CTCM). We present a numerical implementation of this concept, applied to a case study of a bridge deck cantilever slab.
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Publication status
published
External links
Book title
Capacity Assessment of Corroded Reinforced Concrete Structures
Journal / series
Volume
52
Pages / Article No.
449 - 456
Publisher
International Federation for Structural Concrete
Event
2nd Workshop on Capacity Assessment of Corroded Reinforced Concrete Structures (CACRCS Days 2020)
Edition / version
Methods
Software
Geographic location
Date collected
Date created
Subject
Localised corrosion; chloride-induced corrosion; Load-bearing capacity; reinforced concrete; service life modelling; Service life modeling; localized corrosion; Tension chord model
Organisational unit
09593 - Angst, Ueli / Angst, Ueli
09469 - Kaufmann, Walter / Kaufmann, Walter
Notes
Conference lecture held on December 4, 2020. Due to the Coronavirus (COVID-19) the conference was conducted virtually.
Funding
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Is cited by: https://doi.org/10.3929/ethz-b-000602335