Effect of pre-tensioned level on axial stress-strain behaviour of confined concrete: A review

• Main Authors: Chin, C. L., Ma, C. K., Tan, J. Y., Awang, A. Z., Omar, W.
• Format: Article
• Language: English
• Published: Science Publishing Corporation Inc 2018
• Subjects: Unspecified
• Online Access: http://eprints.utm.my/id/eprint/79846/1/AlinaWagiran2018_EffectofPreTensionedLevelonAxial.pdf; http://eprints.utm.my/id/eprint/79846/; http://dx.doi.org/10.14419/ijet.v7i3.9.15265

External passive confinement has been used as strengthening scheme to rehabilitate existing reinforced concrete buildings. Passive confinement requires a certain lateral dilation of concrete prior to the activation of the confining effect. Applying pre -tensioned force to the confining material can eliminate the needs of such lateral dilation. This paper presents a review on previous studies conduct ed about pretensioned level in confined concrete. A short discussion is done based on the effect of pre -tensioned level to the three regions of stressstrain curve. It was found that pre-tensioned level affects the stress-strain behaviour of confined concrete. Pre-tensioned level that is too high decreases the strain capacity of the confined concrete. This review suggests that there exists an optimum pre-tensioned level for each confining material.