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Reliability-based optimization of a prestressed concrete roof girder using a surrogate model and the double-loop approach

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F21%3APU141563" target="_blank" >RIV/00216305:26110/21:PU141563 - isvavai.cz</a>

  • Result on the web

    <a href="https://onlinelibrary.wiley.com/doi/10.1002/suco.202000455" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1002/suco.202000455</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1002/suco.202000455" target="_blank" >10.1002/suco.202000455</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Reliability-based optimization of a prestressed concrete roof girder using a surrogate model and the double-loop approach

  • Original language description

    The paper describes the reliability-based optimization of a TT-shaped precast roof girder produced in Austria. An extensive experimental programme was performed using laboratory specimens to gain information on the mechanical fracture parameters of the utilized concrete. Subsequently, destructive shear tests were performed on scaled-down and full-scale girders under laboratory conditions. The experiments helped in the development of an accurate numerical model of the girder. The developed model was consequently used for the advanced stochastic analysis of structural response, followed by reliability-based optimization, which was used to maximize the shear and bending capacities of the girder and minimize production cost under defined reliability constraints. The enormous computational requirements of the double-loop optimization approach were significantly reduced by the utilization of an artificial neural network-based surrogate model instead of the original nonlinear finite element model of the optimized structure.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    20101 - Civil engineering

Result continuities

  • Project

    <a href="/en/project/GA19-09491S" target="_blank" >GA19-09491S: Multilevel determination of fracture–mechanical parameters for simulation of concrete structures (MUFRAS)</a><br>

  • Continuities

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

Others

  • Publication year

    2021

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Structural Concrete

  • ISSN

    1464-4177

  • e-ISSN

    1751-7648

  • Volume of the periodical

    22

  • Issue of the periodical within the volume

    4

  • Country of publishing house

    DE - GERMANY

  • Number of pages

    18

  • Pages from-to

    2184-2201

  • UT code for WoS article

    000664424600001

  • EID of the result in the Scopus database

    2-s2.0-85108283172