Experimental Research on Axially Loaded Circular Concrete Columns Confined by CFRP under Preload

Abstract:

A total of 32 circular-section concrete columns confined by CFRP sheet were tested in uniaxial compression involved in different preload ratio, concrete strength and CFRP plies. The failure characteristic and mechanics behavior of confined concrete columns were presented, and the descending of the peak stress and strain of confined concrete due to preload were analyzed. The experimental results indicated that the confinement effect of CFRP was influenced by preload ratio observably. The second stiffness, the peak stress and strain declined with preload ratio ascending, and the extent developed with the enhancement of CFRP ply.

• Periodical: Advanced Materials Research (Volumes 255-260)
• Pages: 694-698
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.255-260.694
• Online since: May 2011
• Authors: Yi Pan, Shuang Yin Cao, Deng Hu Jing, Shi Chun Zhao
• Keywords: Carbon Fiber Reinforced Plastic (CFRP) Sheet, Circular-Section Concrete Columns, Peak Strain, Peak Stress, Preload Ratio

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