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LEHNER, P. HORŇÁKOVÁ, M. HRABOVÁ, K.
Originální název
Sensitivity analysis of stochastic calculation of SCC regarding aggressive environment
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
Probabilistic procedures considering the durability with respect to corrosion of reinforcement caused by aggressive substances are widely applied; however, they are based on narrow assumptions. The aspects need to be evaluated both in terms of the search for suitable application of the various experimental results and in terms of their impact on the result of the stochastic assessment itself. In this article, sensitivity analysis was used as an ideal tool to prove how input parameters affect the results of the evaluation, with consideration of different types of concrete (ordinary or self-compacting with and without fibres). These concretes may be used in aggressive environments, as an industrial floor or as a part of the load-bearing bridge structure. An example of a reinforced concrete bridge deck was selected as the solved structure. The results show that in the case of a classic evaluation, a larger amount of fibre reports a lower resistance of concrete, which contradicts the assumptions. The sensitivity analysis then shows that self-compacting concrete is more sensitive to the values of the diffusion coefficient, and with the consideration of fibres, the effect is even greater.
Klíčová slova
concrete; fibres; stochastic analysis; sensitivity analysis; self-compacting concrete
Autoři
LEHNER, P.; HORŇÁKOVÁ, M.; HRABOVÁ, K.
Vydáno
12. 11. 2021
Nakladatel
MDPI
ISSN
1996-1944
Periodikum
Materials
Ročník
14
Číslo
22
Stát
Švýcarská konfederace
Strany od
1
Strany do
9
Strany počet
URL
https://www.mdpi.com/1996-1944/14/22/6838
Plný text v Digitální knihovně
http://hdl.handle.net/11012/203095
BibTex
@article{BUT175110, author="Petr {Lehner} and Marie {Horňáková} and Kristýna {Hrabová}", title="Sensitivity analysis of stochastic calculation of SCC regarding aggressive environment", journal="Materials", year="2021", volume="14", number="22", pages="1--9", doi="10.3390/ma14226838", issn="1996-1944", url="https://www.mdpi.com/1996-1944/14/22/6838" }