Sensitivity Analysis of Stochastic Calculation of SCC Regarding Aggressive Environment

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 exper...

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Autores principales:	Petr Lehner, Marie Horňáková, Kristýna Hrabová
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	concrete fibres stochastic analysis sensitivity analysis self-compacting concrete Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/d19e18a66088418995bd5e7d1ae8cca9
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spelling	oai:doaj.org-article:d19e18a66088418995bd5e7d1ae8cca92021-11-25T18:14:00ZSensitivity Analysis of Stochastic Calculation of SCC Regarding Aggressive Environment10.3390/ma142268381996-1944https://doaj.org/article/d19e18a66088418995bd5e7d1ae8cca92021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/22/6838https://doaj.org/toc/1996-1944Probabilistic 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.Petr LehnerMarie HorňákováKristýna HrabováMDPI AGarticleconcretefibresstochastic analysissensitivity analysisself-compacting concreteTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6838, p 6838 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	concrete fibres stochastic analysis sensitivity analysis self-compacting concrete Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	concrete fibres stochastic analysis sensitivity analysis self-compacting concrete Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Petr Lehner Marie Horňáková Kristýna Hrabová Sensitivity Analysis of Stochastic Calculation of SCC Regarding Aggressive Environment
description	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.
format	article
author	Petr Lehner Marie Horňáková Kristýna Hrabová
author_facet	Petr Lehner Marie Horňáková Kristýna Hrabová
author_sort	Petr Lehner
title	Sensitivity Analysis of Stochastic Calculation of SCC Regarding Aggressive Environment
title_short	Sensitivity Analysis of Stochastic Calculation of SCC Regarding Aggressive Environment
title_full	Sensitivity Analysis of Stochastic Calculation of SCC Regarding Aggressive Environment
title_fullStr	Sensitivity Analysis of Stochastic Calculation of SCC Regarding Aggressive Environment
title_full_unstemmed	Sensitivity Analysis of Stochastic Calculation of SCC Regarding Aggressive Environment
title_sort	sensitivity analysis of stochastic calculation of scc regarding aggressive environment
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/d19e18a66088418995bd5e7d1ae8cca9
work_keys_str_mv	AT petrlehner sensitivityanalysisofstochasticcalculationofsccregardingaggressiveenvironment AT mariehornakova sensitivityanalysisofstochasticcalculationofsccregardingaggressiveenvironment AT kristynahrabova sensitivityanalysisofstochasticcalculationofsccregardingaggressiveenvironment
_version_	1718411466946641920

Sensitivity Analysis of Stochastic Calculation of SCC Regarding Aggressive Environment

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