Advanced Integrated Assessment of Concrete Bridges Considering Nonlinearities, Uncertainties and Degradation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F23%3APU150269" target="_blank" >RIV/00216305:26110/23:PU150269 - isvavai.cz</a>

Výsledek na webu

<a href="https://pubs.aip.org/aip/acp/article/2950/1/020022/2928771/Advanced-integrated-assessment-of-concrete-bridges" target="_blank" >https://pubs.aip.org/aip/acp/article/2950/1/020022/2928771/Advanced-integrated-assessment-of-concrete-bridges</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0181746" target="_blank" >10.1063/5.0181746</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Advanced Integrated Assessment of Concrete Bridges Considering Nonlinearities, Uncertainties and Degradation

Popis výsledku v původním jazyce

Consideration of uncertainties in bridge structural engineering is a growing topic because it provides valuable information on the reliability of bridges in time while addressing life-cycle aspects. Utilization of nonlinear finite element method (NLFEM) and Monte Carlo (MC) type simulation is essential for modelling of the concrete bridge random behaviour and its reliability assessments. Generally, a physical problem can be represented by a mathematical model, which depends on input parameters (material characteristics, geometry, etc.). The aim of the stochastic analysis is to propagate uncertainties through a mathematical model to gain statistical information from the output as well as information about the sensitivity of the mathematical model to uncertainties in input variables. However, in bridge engineering, the mathematical model can be quite complex and uncertainty propagation solved by classical MC approach is very difficult to perform as MC type simulation involves large number of numerical evaluations of structural response. Therefore, advanced statistical and reliability techniques, including meta-modelling, have to be applied. The paper describes methodology of such integrated approach for a routine complex assessment utilizing developed software tools and practical application of the approach for selected case studies of concrete bridges from Czech Republic.

Název v anglickém jazyce

Advanced Integrated Assessment of Concrete Bridges Considering Nonlinearities, Uncertainties and Degradation

Popis výsledku anglicky

Consideration of uncertainties in bridge structural engineering is a growing topic because it provides valuable information on the reliability of bridges in time while addressing life-cycle aspects. Utilization of nonlinear finite element method (NLFEM) and Monte Carlo (MC) type simulation is essential for modelling of the concrete bridge random behaviour and its reliability assessments. Generally, a physical problem can be represented by a mathematical model, which depends on input parameters (material characteristics, geometry, etc.). The aim of the stochastic analysis is to propagate uncertainties through a mathematical model to gain statistical information from the output as well as information about the sensitivity of the mathematical model to uncertainties in input variables. However, in bridge engineering, the mathematical model can be quite complex and uncertainty propagation solved by classical MC approach is very difficult to perform as MC type simulation involves large number of numerical evaluations of structural response. Therefore, advanced statistical and reliability techniques, including meta-modelling, have to be applied. The paper describes methodology of such integrated approach for a routine complex assessment utilizing developed software tools and practical application of the approach for selected case studies of concrete bridges from Czech Republic.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GA22-00774S" target="_blank" >GA22-00774S: Pravděpodobnostní posouzení v mostním inženýrství za užití náhradního metamodelu (MAPAB)</a><br>

Návaznosti

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

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název statě ve sborníku

Volume 2950: Structural and Physical Aspects of Construction Engineering 2022 (SPACE 2022)

ISBN

9780735447615

ISSN

0094-243X

e-ISSN

—

Počet stran výsledku

7

Strana od-do

„020022-1“-„0220022-7“

Název nakladatele

AIP Publishing

Místo vydání

neuveden

Místo konání akce

Štrbské Pleso

Datum konání akce

12. 10. 2022

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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