Přístupnostní navigace
E-přihláška
Vyhledávání Vyhledat Zavřít
Detail publikace
LEHKÝ, D. NOVÁK, D. NOVÁK, L. ŠOMODÍKOVÁ, M.
Originální název
Prestressed concrete roof girders: Part II – Surrogate modeling and sensitivity analysis
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
angličtina
Originální abstrakt
The paper describes a particular part of complex stochastic modeling and design of a precast prestressed concrete girder failing in shear, namely surrogate modeling and sensitivity analysis. Both methods were efficiently used in order to reduce high computational effort related to utilization of a 3D nonlinear FEM model. Two types of surrogate models have been developed: (1) artificial neural network model and (2) polynomial chaos expansion model. In case of sensitivity analysis, three methods were utilized and compared: (i) Spearman non-parametric rank-order statistical correlation sensitivity, (ii) sensitivity analysis in terms of coefficient of variation, and (iii) sensitivity analysis in terms of Sobol sensitivity indices. The obtained information was used to set up a stochastic model and surrogate models in an optimum manner and was employed in the subsequent determination of selected uncertain design parameters followed by load-bearing capacity and reliability assessment using semi-probabilistic as well as fully probabilistic approaches.
Klíčová slova
Surrogate modelling, Artificial Neural Network, Polynomial Chaos Expansion, Sensitivity analysis
Autoři
LEHKÝ, D.; NOVÁK, D.; NOVÁK, L.; ŠOMODÍKOVÁ, M.
Vydáno
28. 10. 2018
Nakladatel
CRC press, Taylor and Francis group
Místo
London
ISBN
9781138626331
Kniha
Life Cycle Analysis and Assessment in Civil Engineering: Towards an Integrated Vision: Proceedings of the Sixth International Symposium on Life-Cycle Civil Engineering (IALCCE 2018)
Edice
1
Číslo edice
Strany od
495
Strany do
502
Strany počet
8
BibTex
@inproceedings{BUT151810, author="David {Lehký} and Drahomír {Novák} and Lukáš {Novák} and Martina {Sadílková Šomodíková}", title="Prestressed concrete roof girders: Part II – Surrogate modeling and sensitivity analysis", booktitle="Life Cycle Analysis and Assessment in Civil Engineering: Towards an Integrated Vision: Proceedings of the Sixth International Symposium on Life-Cycle Civil Engineering (IALCCE 2018)", year="2018", series="1", number="1", pages="495--502", publisher="CRC press, Taylor and Francis group", address="London", isbn="9781138626331" }