Assessment of long-term reliability of reinforced concrete bridges using digital twins

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F28399269%3A_____%2F22%3AN0000009" target="_blank" >RIV/28399269:_____/22:N0000009 - isvavai.cz</a>

Result on the web

<a href="https://www.cervenka.cz/assets/files/konference/CCC_2022_Zakopane_Paper_32.pdf" target="_blank" >https://www.cervenka.cz/assets/files/konference/CCC_2022_Zakopane_Paper_32.pdf</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Assessment of long-term reliability of reinforced concrete bridges using digital twins

Original language description

Chloride-induced reinforcement corrosion may compromise the serviceability and safety of the civil infrastructure. The early diagnosis together with advanced numerical tools of ageing management can contribute to the maintenance cost efficiency and long service life of reinforced concrete bridges. Such a role can be provided by real-time monitoring systems coupled with advanced numerical tools. The monitoring system is used to monitor the traffic passing the bridge as well as to deduce data for structural assessment. A digital twin refers to a computational model, which, upon calibration, is used to simulate the behaviour of the real structure as well as to predict its degradation rate in the future. In this study, a non-linear finite element model is calibrated based on the on-site measurements and advanced chemo-mechanical models are applied to estimate the chloride ingress, subsequent reinforcement corrosion rate, and its impact on the structural performance. Such an analysis is generally composed of multiple load intervals simulating the application of the typical load level, chloride attack modelling, and simulation of the structural overloading. It is assumed that the structure is subjected to the de-icing agents for up to 150 years since its construction. Finally, the structural resistivity is evaluated according to the methods given in the fib Model Code 2010.

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

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OECD FORD branch

20102 - Construction engineering, Municipal and structural engineering

Project

<a href="/en/project/CK03000023" target="_blank" >CK03000023: Digital twin for increased reliability and sustainability of concrete bridges</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů