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
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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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