Axial behaviour of strengthened circular hollow reinforced concrete column with CFRP partial confinement

Authors

  • Ruqayyah Ismail School of Civil Engineering, College of Engineering, Universiti Teknologi MARA, Cawangan Pulau Pinang, Kampus Permatang Pauh, 13500 Permatang Pauh, Pulau Pinang, Malaysia
  • Raizal Saifulnaz Muhammad Rashid Department of Civil Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
  • Fariz Aswan Ahmad Zakwan School of Civil Engineering, College of Engineering, Universiti Teknologi MARA, Cawangan Pulau Pinang, Kampus Permatang Pauh, 13500 Permatang Pauh, Pulau Pinang, Malaysia
  • Hazrina Ahmad School of Civil Engineering, College of Engineering, Universiti Teknologi MARA, Cawangan Pulau Pinang, Kampus Permatang Pauh, 13500 Permatang Pauh, Pulau Pinang, Malaysia
  • Farzad Hejazi Department of Civil Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia

DOI:

https://doi.org/10.14311/APP.2022.33.0250

Keywords:

CFRP, FRP, hollow column, partial confinement

Abstract

Circular hollow reinforced concrete column will experience deterioration due to many causes such as natural disaster, corrosion, low quality and others. Therefore, structural strengthening is required since replacing the deteriorated column is costly. Carbon fibre reinforced polymer (CFRP) confinement is one of the common method used for column strengthening. However, being a non- biodegradable material, the usage of CFRP will contribute to environmental issues. Therefore, this study investigates the effect of using partial CFRP confinement in a strengthened circular hollow reinforced concrete column. Six specimens of 2 m height with 250 mm and 110 mm for outer and inner diameter were tested. The effectiveness of partial CFRP confinement is analyzed by investigating the tested specimens’ axial and transverse displacement and strain behaviour. This study has shown that with CFRP partial confinement the strength is increased up to 44% from the unconfined circular hollow reinforced concrete column. The results of the study showed that, circular hollow reinforced concrete column with CFRP partial confinement able to enhanced the column load carrying capacity.

Downloads

Download data is not yet available.

Downloads

Published

2022-03-03

How to Cite

Ismail, R. ., Muhammad Rashid, R. S. ., Ahmad Zakwan, F. A. ., Ahmad, H., & Hejazi, F. . (2022). Axial behaviour of strengthened circular hollow reinforced concrete column with CFRP partial confinement. Acta Polytechnica CTU Proceedings, 33, 250–255. https://doi.org/10.14311/APP.2022.33.0250

Issue

Vol. 33 (2022): fib International Conference on Concrete Sustainability

Section

Articles