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

During the last decade, conventional materials such as steel have been replaced by fibre-reinforced polymer (FRP) material for the strengthening of the concrete structures. Although externally bonded FRP reinforcement performed extremely well in practice, premature debonding failure was observed and identified by many researchers. To solve the problem, the method of near-surface mounted FRP rods was adopted. This technique becomes particularly attractive for flexural strengthening in the negative moment regions of slabs and decks, where external reinforcement would be subjected to mechanical and environmental damage and would require protective cover, which could interfere with the presence of floor finishes.

KEYWORDS

Near Surface Mounted CFRP, Stress-Slip Model, Strengthening Concrete

CITE THIS PAPER

Xiaodong Zhang, Discussion about the "Modified-B.E.P." Model of Near Surface Mounted CFRP Strengthening Concrete. Journal of Materials, Processing and Design (2022) Vol. 6: 70-81. DOI: http://dx.doi.org/10.23977/jmpd.2022.060209.

REFERENCES

[1] Stratford T.J., Burgoyne C.J., 2003, Shear Analysis of Concrete with Brittle Reinforcement, ASCE Journal of Composites in Construction, 7/4, 323-330.
[2] Vicente Alcaraz Carrillo de Albornoz et al. Experimental Study of a New Strengthening Technique of RC Beams Using Prestressed NSM CFRP Bars. Sustainability, 2019, 11(5): 1374.
[3] Laura De Lorenzs et al, Bond of Fiber-Reinforced Polymer Laminates to Concrete, ACI Material Journal, V. 98, No. 3 2001, pp. 256-264.
[4] Chen. J.F., and Teng. J.G., 2001, Anchorage Strength Model for FRP and Steel Plates Bonded to concrete, Journal of Structural Engineering, ASCE, Vol.127, No.7, July, pp.784-791.
[5] Boulebd Adel et al. Modeling of CFRP strengthened RC beams using the SNSM technique, proposed as an alternative to NSM and EBR techniques. Fracture and Structural Integrity, 2020, 14(54): 21 - 35.
[6] Mohammad Abdallah et al. Experimental study on strengthening of RC beams with Side Near Surface Mounted technique-CFRP bars. Composite Structures, 2020, 234(C): 111716-111716.
[7] W.K.K.G. Kalupahana and T.J. Ibell and A.P. Darby. Bond characteristics of near surface mounted CFRP bars. Construction and Building Materials, 2013, 43: 58-68.
[8] Ahmed H. Abdel-Kareem. Punching Strengthening of Concrete Slab-column Connections Using Near Surface Mounted (NSM) Carbon Fiber Reinforced Polymer (CFRP) Bars. Journal of Engineering Research and Reports, 2020: 1-14.
[9] Tamer Eljufout and Houssam Toutanji. Fatigue behavior of prefatigued reinforced concrete beams rehabilitated with near surface mounted carbon fiber reinforced polymer reinforcement. Structural Concrete, 2020, 21(2):533-547.
[10] AlZu'bi Mohammad et al. The effect of length and inclination of carbon fiber reinforced polymer laminates on shear capacity of near‐surface mounted retrofitted reinforced concrete beams. Structural Concrete, 2021, 22(6):3677-3691.

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