Behaviour of carbon fibre–reinforced polymer-confined hollow circular concrete columns with inner polyvinyl chloride tube. Issue 8 (June 2018)

• Record Type: Journal Article
• Authors: Goaiz, Hussam A; Yu, Tao; Hadi, Muhammad NS
• Other Names: Pham Thong M guest-editor.; Chen Wensu guest-editor.
• Is Part Of: Advances in structural engineering. Volume 21:Issue 8(2018)
• Page Start: 1120
• Page End: 1133
• Publication Date: 2018-06
• Subjects: carbon fibre–reinforced polymer -- concrete -- confinement -- hollow columns -- polyvinyl chloride tube; Structural engineering -- Periodicals; Construction, Technique de la; Structural engineering; Periodicals; 624.1
• DOI: 10.1177/1369433217717110
• Languages: English
• ISSNs: 1369-4332

Abstract

Existing studies have shown that the use of an inner tube can significantly enhance the effectiveness of confinement in fibre-reinforced polymer-confined hollow columns. The inner tube used in the existing studies, however, generally had a large stiffness and also served as longitudinal reinforcement. The use of a stiff inner tube is inefficient in resisting bending for hollow columns with a relatively small void and may be unnecessary for constraining the inner surface of concrete. Against this background, this article presents the first experimental study on fibre-reinforced polymer-confined hollow columns with an inner polyvinyl chloride tube. The experimental program included a total of 18 specimens which were tested under axial compression. The test variables included the section configuration (i.e. solid specimens, hollow specimens and hollow specimens with a polyvinyl chloride tube) and the thickness of fibre-reinforced polymer. The test results showed that due to the beneficial effect of the polyvinyl chloride tube which provided constraints/confinement from inside, fibre-reinforced polymer-confined hollow columns with an inner polyvinyl chloride tube generally possessed good strength and ductility compared to their counterparts without a polyvinyl chloride tube.