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

Kód výsledku v 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>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20102 - Construction engineering, Municipal and structural engineering

Projekt

<a href="/cs/project/CK03000023" target="_blank" >CK03000023: Digitální dvojče pro zvýšení spolehlivosti a životnosti betonových mostů</a><br>

Návaznosti

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

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název statě ve sborníku

13th Central European Congress on Concrete Engineering CCC 2022. Next Generation of Concrete Engineering for Post-Pandemic Europe

ISBN

978-83-938649-7-3

ISSN

—

e-ISSN

—

Počet stran výsledku

8

Strana od-do

—

Název nakladatele

nbi media

Místo vydání

Kraków, Poland

Místo konání akce

Zakopane

Datum konání akce

13. 9. 2022

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

—