Explicitly Assessing the Durability of RC Structures Considering Spatial Variability and Correlation

The durability design of reinforced concrete (RC) structures that are exposed to aggressive environmental attacks (e.g., corrosion due to chloride ingress in marine environment) plays a vital role in ensuring the structural serviceability within a reference period of interest. Existing approaches fo...

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Autor principal:	Cao Wang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	concrete structures durability design durability assessment spatial correlation structural serviceability Technology T
Acceso en línea:	https://doaj.org/article/4184cc8ee105425d80663baa1f3017bc
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id	oai:doaj.org-article:4184cc8ee105425d80663baa1f3017bc
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spelling	oai:doaj.org-article:4184cc8ee105425d80663baa1f3017bc2021-11-25T17:58:51ZExplicitly Assessing the Durability of RC Structures Considering Spatial Variability and Correlation10.3390/infrastructures61101562412-3811https://doaj.org/article/4184cc8ee105425d80663baa1f3017bc2021-11-01T00:00:00Zhttps://www.mdpi.com/2412-3811/6/11/156https://doaj.org/toc/2412-3811The durability design of reinforced concrete (RC) structures that are exposed to aggressive environmental attacks (e.g., corrosion due to chloride ingress in marine environment) plays a vital role in ensuring the structural serviceability within a reference period of interest. Existing approaches for the durability design and assessment of RC structures have, for the most part, not considered the spatial distribution of corrosion-related structural properties. In this paper, a closed-form approach is developed for durability assessment of RC structures, where the structural dimension, spatial variability, and correlation of structural properties such as the concrete cover thickness and the chloride diffusion coefficient are taken into account. The corrosion and crack initiations of an emerged tube tunnel segment that was used in the Hong Kong-Zhuhai-Macau bridge project were assessed to demonstrate the applicability of the proposed approach. The accuracy of the method was verified through a comparison with Monte Carlo simulation results based on two-dimensional random field modeling. The proposed method can be used to efficiently assess the durability performance of RC structures in the marine environment and has the potential to become an efficient tool to guide the durability design of RC structures subjected to corrosion.Cao WangMDPI AGarticleconcrete structuresdurability designdurability assessmentspatial correlationstructural serviceabilityTechnologyTENInfrastructures, Vol 6, Iss 156, p 156 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	concrete structures durability design durability assessment spatial correlation structural serviceability Technology T
spellingShingle	concrete structures durability design durability assessment spatial correlation structural serviceability Technology T Cao Wang Explicitly Assessing the Durability of RC Structures Considering Spatial Variability and Correlation
description	The durability design of reinforced concrete (RC) structures that are exposed to aggressive environmental attacks (e.g., corrosion due to chloride ingress in marine environment) plays a vital role in ensuring the structural serviceability within a reference period of interest. Existing approaches for the durability design and assessment of RC structures have, for the most part, not considered the spatial distribution of corrosion-related structural properties. In this paper, a closed-form approach is developed for durability assessment of RC structures, where the structural dimension, spatial variability, and correlation of structural properties such as the concrete cover thickness and the chloride diffusion coefficient are taken into account. The corrosion and crack initiations of an emerged tube tunnel segment that was used in the Hong Kong-Zhuhai-Macau bridge project were assessed to demonstrate the applicability of the proposed approach. The accuracy of the method was verified through a comparison with Monte Carlo simulation results based on two-dimensional random field modeling. The proposed method can be used to efficiently assess the durability performance of RC structures in the marine environment and has the potential to become an efficient tool to guide the durability design of RC structures subjected to corrosion.
format	article
author	Cao Wang
author_facet	Cao Wang
author_sort	Cao Wang
title	Explicitly Assessing the Durability of RC Structures Considering Spatial Variability and Correlation
title_short	Explicitly Assessing the Durability of RC Structures Considering Spatial Variability and Correlation
title_full	Explicitly Assessing the Durability of RC Structures Considering Spatial Variability and Correlation
title_fullStr	Explicitly Assessing the Durability of RC Structures Considering Spatial Variability and Correlation
title_full_unstemmed	Explicitly Assessing the Durability of RC Structures Considering Spatial Variability and Correlation
title_sort	explicitly assessing the durability of rc structures considering spatial variability and correlation
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/4184cc8ee105425d80663baa1f3017bc
work_keys_str_mv	AT caowang explicitlyassessingthedurabilityofrcstructuresconsideringspatialvariabilityandcorrelation
_version_	1718411738040238080

Explicitly Assessing the Durability of RC Structures Considering Spatial Variability and Correlation

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