The effects of corrosion on seismic performance of reinforced concrete moment frames

In recent years, evaluation of deterioration and aging effects on seismic performance assessment of existing reinforced concrete structures has been paid much attention in earthquake and structural engineering community due to economical and safety issues. Corrosion of concrete reinforcement causes...

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Autores principales: Mohsen Ali Shayanfar, Hamid Reza Savoj, Mohammad Ghanooni-Bagha, Ali Khodam
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Publicado: Iranian Society of Structrual Engineering (ISSE) 2018
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Acceso en línea:https://doaj.org/article/290a09a59abb4034a16cb64f29f97e0c
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spelling oai:doaj.org-article:290a09a59abb4034a16cb64f29f97e0c2021-11-08T15:48:11ZThe effects of corrosion on seismic performance of reinforced concrete moment frames2476-39772538-261610.22065/jsce.2017.86063.1183https://doaj.org/article/290a09a59abb4034a16cb64f29f97e0c2018-07-01T00:00:00Zhttps://www.jsce.ir/article_48592_c7a564a8076769d9b7fafcd4f9565b85.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616In recent years, evaluation of deterioration and aging effects on seismic performance assessment of existing reinforced concrete structures has been paid much attention in earthquake and structural engineering community due to economical and safety issues. Corrosion of concrete reinforcement causes changing of nonlinear behaviour of reinforced concrete structures and ignoring these changes may lead to structural damage during the design life time of RC structures. Investigation of reinforcement corrosion effects in concrete structures on nonlinear behaviour of reinforced concrete members is the main subject of this research. In this study, the structural behaviour of the moment-curvature curve was investigated under these corrosion effects. After occurring the corrosion, cross section of the reinforcement is gradually reduced and consequently load bearing capacity of the reinforced concrete members will be reduced significantly. Accordingly, the relationship between corrosion and moment-curvature curve of structural members will be discussed. A two-dimensional frame is considered to investigate the seismic behaviour of structural frame and members, under different scenarios of corrosion in comparison with the approach proposed by Instruction for Seismic Rehabilitation of Existing Buildings (No. 360). Based on these results, to take the corrosion effects into consideration, it is recommended to use a k factor associated to ultimate sectional capacity instead of ductility limit.Mohsen Ali ShayanfarHamid Reza SavojMohammad Ghanooni-BaghaAli KhodamIranian Society of Structrual Engineering (ISSE)articlereinforced concrete structurescorrosion effectmoment-curvaturenonlinear hingepushover analysisBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 5, Iss 2, Pp 146-159 (2018)
institution DOAJ
collection DOAJ
language FA
topic reinforced concrete structures
corrosion effect
moment-curvature
nonlinear hinge
pushover analysis
Bridge engineering
TG1-470
Building construction
TH1-9745
spellingShingle reinforced concrete structures
corrosion effect
moment-curvature
nonlinear hinge
pushover analysis
Bridge engineering
TG1-470
Building construction
TH1-9745
Mohsen Ali Shayanfar
Hamid Reza Savoj
Mohammad Ghanooni-Bagha
Ali Khodam
The effects of corrosion on seismic performance of reinforced concrete moment frames
description In recent years, evaluation of deterioration and aging effects on seismic performance assessment of existing reinforced concrete structures has been paid much attention in earthquake and structural engineering community due to economical and safety issues. Corrosion of concrete reinforcement causes changing of nonlinear behaviour of reinforced concrete structures and ignoring these changes may lead to structural damage during the design life time of RC structures. Investigation of reinforcement corrosion effects in concrete structures on nonlinear behaviour of reinforced concrete members is the main subject of this research. In this study, the structural behaviour of the moment-curvature curve was investigated under these corrosion effects. After occurring the corrosion, cross section of the reinforcement is gradually reduced and consequently load bearing capacity of the reinforced concrete members will be reduced significantly. Accordingly, the relationship between corrosion and moment-curvature curve of structural members will be discussed. A two-dimensional frame is considered to investigate the seismic behaviour of structural frame and members, under different scenarios of corrosion in comparison with the approach proposed by Instruction for Seismic Rehabilitation of Existing Buildings (No. 360). Based on these results, to take the corrosion effects into consideration, it is recommended to use a k factor associated to ultimate sectional capacity instead of ductility limit.
format article
author Mohsen Ali Shayanfar
Hamid Reza Savoj
Mohammad Ghanooni-Bagha
Ali Khodam
author_facet Mohsen Ali Shayanfar
Hamid Reza Savoj
Mohammad Ghanooni-Bagha
Ali Khodam
author_sort Mohsen Ali Shayanfar
title The effects of corrosion on seismic performance of reinforced concrete moment frames
title_short The effects of corrosion on seismic performance of reinforced concrete moment frames
title_full The effects of corrosion on seismic performance of reinforced concrete moment frames
title_fullStr The effects of corrosion on seismic performance of reinforced concrete moment frames
title_full_unstemmed The effects of corrosion on seismic performance of reinforced concrete moment frames
title_sort effects of corrosion on seismic performance of reinforced concrete moment frames
publisher Iranian Society of Structrual Engineering (ISSE)
publishDate 2018
url https://doaj.org/article/290a09a59abb4034a16cb64f29f97e0c
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