Experimental Study on Effects of Temperature on Characteristic Parameters of CFRP-Confined Concrete Prisms

Yan Zhang; Zhi Sheng Xu

doi:10.4028/www.scientific.net/AMR.150-151.1400

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Experimental Study on Effects of Temperature on Characteristic Parameters of CFRP-Confined Concrete Prisms

Abstract:

The stress-strain model of concrete prism after high temperature confined by CFRP is scarce, which gives great trouble to the study of mechanical properties of compressed concrete member after fire strengthened by CFRP. This paper presents the results of an experimental study on effects of temperature on characteristic parameters of CFRP-wrapped concrete prisms at elevated temperature. Experimental results indicate that strength and ductility of CFRP-confined concrete prism after high temperature have a large certain extent increase as the result of the action of CFRP. The results reveal that transitional stress, transitional strain, ultimate stress and ultimate strain are related to width of CFRP strip, the greatest temperature, corner radius and layers of CFRP. This has established reliable foundation for the accurate calculation of concrete structures strengthened by CFRP after high temperature or post fire.

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Periodical:

Advanced Materials Research (Volumes 150-151)

Pages:

1400-1404

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.150-151.1400

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Online since:

October 2010

Authors:

Yan Zhang, Zhi Sheng Xu

Keywords:

CFRP-Confined Concrete Prism, Characteristic Parameters, Experimental Study, Temperature

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