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Crack assessment of RC beam-column joints subjected to cyclic lateral loading using acoustic emission (AE): The influence of shear links aspect

Existing reinforced concrete (RC) beam-column joints, which are designed mainly to resist gravity load, may encounter serious problems in low to moderate seismic regions. The moderate earthquake in Ranau, Malaysia, affected numerous old buildings, mainly manifesting as uncontrolled crack propagation...

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Main Authors: Ganasan, Reventheran, Tan, Chee Ghuan, Ibrahim, Zainah, Muhamad Bunnori, Norazura, Nazri, Fadzli Mohamed, Nayaka, Ramappa Ramesh
Format: Article
Published: Canadian Science Publishing 2021
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://eprints.um.edu.my/28176/
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spelling my.um.eprints.281762022-03-30T07:11:44Z http://eprints.um.edu.my/28176/ Crack assessment of RC beam-column joints subjected to cyclic lateral loading using acoustic emission (AE): The influence of shear links aspect Ganasan, Reventheran Tan, Chee Ghuan Ibrahim, Zainah Muhamad Bunnori, Norazura Nazri, Fadzli Mohamed Nayaka, Ramappa Ramesh TA Engineering (General). Civil engineering (General) Existing reinforced concrete (RC) beam-column joints, which are designed mainly to resist gravity load, may encounter serious problems in low to moderate seismic regions. The moderate earthquake in Ranau, Malaysia, affected numerous old buildings, mainly manifesting as uncontrolled crack propagation in RC members at the beam-column joint. Effects of shear reinforcement between shear link spacing on crack formation on four RC beam-column joints were investigated under cyclic lateral loading with acoustic emission (AE) monitoring. The control specimen (BCJ-1), which was designed in BS-8110, showed more irregular cracks thus concrete cover spall was observed at an earlier drift ratio (DR) level than for other specimens with additional shear reinforcement between shear link spacing. Sudden drop of AE hits beyond 2.25% DR level with a significant increase in crack width showed that BCJ-1 was no longer able to resist higher loads due to de-bonding between reinforcement and concrete. From the rise time/amplitude against average frequency (RA-AF) graphs, the mode of failure was determined according to DR stages concerning crack characteristics. Canadian Science Publishing 2021-10 Article PeerReviewed Ganasan, Reventheran and Tan, Chee Ghuan and Ibrahim, Zainah and Muhamad Bunnori, Norazura and Nazri, Fadzli Mohamed and Nayaka, Ramappa Ramesh (2021) Crack assessment of RC beam-column joints subjected to cyclic lateral loading using acoustic emission (AE): The influence of shear links aspect. Canadian Journal of Civil Engineering, 48 (10). pp. 1274-1286. ISSN 0315-1468, DOI https://doi.org/10.1139/cjce-2019-0578 <https://doi.org/10.1139/cjce-2019-0578>. 10.1139/cjce-2019-0578
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Ganasan, Reventheran
Tan, Chee Ghuan
Ibrahim, Zainah
Muhamad Bunnori, Norazura
Nazri, Fadzli Mohamed
Nayaka, Ramappa Ramesh
Crack assessment of RC beam-column joints subjected to cyclic lateral loading using acoustic emission (AE): The influence of shear links aspect
description Existing reinforced concrete (RC) beam-column joints, which are designed mainly to resist gravity load, may encounter serious problems in low to moderate seismic regions. The moderate earthquake in Ranau, Malaysia, affected numerous old buildings, mainly manifesting as uncontrolled crack propagation in RC members at the beam-column joint. Effects of shear reinforcement between shear link spacing on crack formation on four RC beam-column joints were investigated under cyclic lateral loading with acoustic emission (AE) monitoring. The control specimen (BCJ-1), which was designed in BS-8110, showed more irregular cracks thus concrete cover spall was observed at an earlier drift ratio (DR) level than for other specimens with additional shear reinforcement between shear link spacing. Sudden drop of AE hits beyond 2.25% DR level with a significant increase in crack width showed that BCJ-1 was no longer able to resist higher loads due to de-bonding between reinforcement and concrete. From the rise time/amplitude against average frequency (RA-AF) graphs, the mode of failure was determined according to DR stages concerning crack characteristics.
format Article
author Ganasan, Reventheran
Tan, Chee Ghuan
Ibrahim, Zainah
Muhamad Bunnori, Norazura
Nazri, Fadzli Mohamed
Nayaka, Ramappa Ramesh
author_facet Ganasan, Reventheran
Tan, Chee Ghuan
Ibrahim, Zainah
Muhamad Bunnori, Norazura
Nazri, Fadzli Mohamed
Nayaka, Ramappa Ramesh
author_sort Ganasan, Reventheran
title Crack assessment of RC beam-column joints subjected to cyclic lateral loading using acoustic emission (AE): The influence of shear links aspect
title_short Crack assessment of RC beam-column joints subjected to cyclic lateral loading using acoustic emission (AE): The influence of shear links aspect
title_full Crack assessment of RC beam-column joints subjected to cyclic lateral loading using acoustic emission (AE): The influence of shear links aspect
title_fullStr Crack assessment of RC beam-column joints subjected to cyclic lateral loading using acoustic emission (AE): The influence of shear links aspect
title_full_unstemmed Crack assessment of RC beam-column joints subjected to cyclic lateral loading using acoustic emission (AE): The influence of shear links aspect
title_sort crack assessment of rc beam-column joints subjected to cyclic lateral loading using acoustic emission (ae): the influence of shear links aspect
publisher Canadian Science Publishing
publishDate 2021
url http://eprints.um.edu.my/28176/
_version_ 1735409541921636352
score 13.211869

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