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Discussion about the Models of the Stress-Slip Curve of Near Surface Mounted CFRP Reinforcement Bond

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DOI: 10.23977/compag.2022.020101 | Downloads: 10 | Views: 1082

Author(s)

Xiaodong Zhang 1

Affiliation(s)

1 School of Environmental Arts and Architectural Engineering, Heilongjiang University of Technology, No.99 South Heping Street, Jixi City, Heilongjiang Province, China

Corresponding Author

Xiaodong Zhang

ABSTRACT

Carbon-fibre-reinforced polymer (CFRP)-the currently produced materials are now widely used for bridges and the strengthening and retrofitting of concrete structures. Large amounts of research has been directed to characterize the bond behaviour since FRP rods were proved to be good composites which can be used in construction industries, especially as the near-surface mounted reinforcements. E. Cosenza, G. Manfredi and R. Realfonzo (1997) carried out a series of tests in which the influence of type of fibre, outer surface (shape and type of concrete matrix), and other significant parameters (i.e., confining pressure, bar diameter, compressive concrete strength) on bond performance was investigated. Furthermore, some analytical models of bond-slip behaviour were examined to assess their adequacy to reproduce the experimental bond behaviour. However, it is evident that more information is still required to provide confidence for the design of the CFRP structures and for the development of design standards. This paper investigates different stress-slip models of the Near Surface Mounted CFRP rods that previous researchers suggested and try to recognize the difference between different models by comparisons.

KEYWORDS

Strengthening Concrete Structure, CFRP, Concrete Structure Refurbishments, NSM, Bond

CITE THIS PAPER

Xiaodong Zhang, Discussion about the Models of the Stress-Slip Curve of Near Surface Mounted CFRP Reinforcement Bond. Complex Analysis and Geometry (2022) Vol. 2: 1-6. DOI: http://dx.doi.org/10.23977/compag.2022.020101.

REFERENCES

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