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.
Full text not available from this repository.Abstract
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.
| Item Type: | Article |
|---|---|
| Funders: | Research Fund Assistance from the University of Malaya under RU Grant -Faculty Program (GPF026A-2018), University of Tun Hussein Onn Malaysia |
| Uncontrolled Keywords: | RC beam-column joint; Acoustic emission; Cyclic loading; Shear link spacing; Cracking formation |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Faculty of Engineering |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 30 Mar 2022 07:11 |
| Last Modified: | 30 Mar 2022 07:11 |
| URI: | http://eprints.um.edu.my/id/eprint/28176 |
Actions (login required)
 |
View Item |
