A Practice-Oriented Procedure for Seismic Reliability Assessment of RC Structures Affected by Carbonation-Induced Degradation

Existing reinforced concrete (RC) buildings in Europe have generally been designed without proper consideration of seismic actions and capacity design principles, and thus they tend to be vulnerable to earthquakes. Moreover, since a significant proportion of the aforementioned buildings were develop...

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Main Authors: Francesco Nigro, Adamo Zinco, Enzo Martinelli
Format: Article
Language:English
Published: MDPI AG 2021-10-01
Series:Applied Mechanics
Subjects:
Online Access:https://www.mdpi.com/2673-3161/2/4/47
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author Francesco Nigro
Adamo Zinco
Enzo Martinelli
author_facet Francesco Nigro
Adamo Zinco
Enzo Martinelli
author_sort Francesco Nigro
collection DOAJ
description Existing reinforced concrete (RC) buildings in Europe have generally been designed without proper consideration of seismic actions and capacity design principles, and thus they tend to be vulnerable to earthquakes. Moreover, since a significant proportion of the aforementioned buildings were developed during the 1950s and 1960s, they are currently close to the end of their service life. Therefore, seismic assessment of existing RC building is a major issue in structural engineering and construction management, and the related seismic analyses should take into account the effect of material ageing and degradation. This paper proposes a practice-oriented procedure for quantifying seismic reliability, taking into account the main effects of carbonation-induced degradation phenomena. It summarizes the main aspects of the most up-to-date models for the seismic degradation of concrete and RC members and shows how nonlinear static (pushover) analyses can be utilized (in lieu of the most time-consuming non-linear time history analyses) in quantifying seismic reliability with respect to the performance levels of relevance in seismic engineering. A relevant case study is finally considered with the aim to showing how some parameters, such as exposure class and cover thickness, affect the resulting seismic reliability of existing RC buildings.
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spelling doaj.art-021add42787b44278a1a606d3b4f6ec62023-11-23T03:34:47ZengMDPI AGApplied Mechanics2673-31612021-10-012482084010.3390/applmech2040047A Practice-Oriented Procedure for Seismic Reliability Assessment of RC Structures Affected by Carbonation-Induced DegradationFrancesco Nigro0Adamo Zinco1Enzo Martinelli2Department of Civil Engineering, University of Salerno, 84084 Fisciano, SA, ItalyDepartment of Civil Engineering, University of Salerno, 84084 Fisciano, SA, ItalyDepartment of Civil Engineering, University of Salerno, 84084 Fisciano, SA, ItalyExisting reinforced concrete (RC) buildings in Europe have generally been designed without proper consideration of seismic actions and capacity design principles, and thus they tend to be vulnerable to earthquakes. Moreover, since a significant proportion of the aforementioned buildings were developed during the 1950s and 1960s, they are currently close to the end of their service life. Therefore, seismic assessment of existing RC building is a major issue in structural engineering and construction management, and the related seismic analyses should take into account the effect of material ageing and degradation. This paper proposes a practice-oriented procedure for quantifying seismic reliability, taking into account the main effects of carbonation-induced degradation phenomena. It summarizes the main aspects of the most up-to-date models for the seismic degradation of concrete and RC members and shows how nonlinear static (pushover) analyses can be utilized (in lieu of the most time-consuming non-linear time history analyses) in quantifying seismic reliability with respect to the performance levels of relevance in seismic engineering. A relevant case study is finally considered with the aim to showing how some parameters, such as exposure class and cover thickness, affect the resulting seismic reliability of existing RC buildings.https://www.mdpi.com/2673-3161/2/4/47RC buildingsseismic reliabilitypushover analysiscarbonationcorrosion
spellingShingle Francesco Nigro
Adamo Zinco
Enzo Martinelli
A Practice-Oriented Procedure for Seismic Reliability Assessment of RC Structures Affected by Carbonation-Induced Degradation
Applied Mechanics
RC buildings
seismic reliability
pushover analysis
carbonation
corrosion
title A Practice-Oriented Procedure for Seismic Reliability Assessment of RC Structures Affected by Carbonation-Induced Degradation
title_full A Practice-Oriented Procedure for Seismic Reliability Assessment of RC Structures Affected by Carbonation-Induced Degradation
title_fullStr A Practice-Oriented Procedure for Seismic Reliability Assessment of RC Structures Affected by Carbonation-Induced Degradation
title_full_unstemmed A Practice-Oriented Procedure for Seismic Reliability Assessment of RC Structures Affected by Carbonation-Induced Degradation
title_short A Practice-Oriented Procedure for Seismic Reliability Assessment of RC Structures Affected by Carbonation-Induced Degradation
title_sort practice oriented procedure for seismic reliability assessment of rc structures affected by carbonation induced degradation
topic RC buildings
seismic reliability
pushover analysis
carbonation
corrosion
url https://www.mdpi.com/2673-3161/2/4/47
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