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NOVÁK, D. PUKL, R.
Originální název
Advanced Integrated Assessment of Concrete Bridges Considering Nonlinearities, Uncertainties and Degradation
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
angličtina
Originální abstrakt
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.
Klíčová slova
Concrete, Bridges, Nonlinearities, Uncertainties, Degradation, Reliability
Autoři
NOVÁK, D.; PUKL, R.
Vydáno
8. 12. 2023
Nakladatel
AIP Publishing
ISBN
9780735447615
Kniha
Volume 2950: Structural and Physical Aspects of Construction Engineering 2022 (SPACE 2022)
Číslo edice
293
ISSN
0094-243X
Periodikum
AIP conference proceedings
Stát
Spojené státy americké
Strany od
020022-1
Strany do
0220022-7
Strany počet
7
URL
https://pubs.aip.org/aip/acp/article/2950/1/020022/2928771/Advanced-integrated-assessment-of-concrete-bridges