Improvement of Flexural Strength of RC Beams by Using the Multi-Layer Multi-Tensioning Method with CF Sheets

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A novel retrofitting method using extremely prestressed carbon fiber sheets, MLML (Multi-Layer Multi-Tensioning) method, was proposed for improving the flexural strength of reinforced concrete structures. The experimental results suggested that the crack initiation strength and the energy absorbing capacity of RC beams could be largely improved by the MLMT method. However, the advantage of the MLMT method was not so clear on the rebars yielding strength and the ultimate flexural strength of RC beams, compared with the conventional methods.

Info:

Periodical:

Key Engineering Materials (Volumes 334-335)

Edited by:

J.K. Kim, D.Z. Wo, L.M. Zhou, H.T. Huang, K.T. Lau and M. Wang

Pages:

429-432

Citation:

T. Kusaka et al., "Improvement of Flexural Strength of RC Beams by Using the Multi-Layer Multi-Tensioning Method with CF Sheets ", Key Engineering Materials, Vols. 334-335, pp. 429-432, 2007

Online since:

March 2007

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$38.00

[1] R.J. Quantrill, L.C. Hollaway and A.M. Thorne: Magagine of Concrete Research, 48 (1996), pp.331-342.

[2] R.J. Quantrill, L.C. Hollaway and A.M. Thorne: Magagine of Concrete Research, 48 (1996), pp.343-351.

[3] U. Meier, I. Stocklin and G.P. Terrasi: FRP Composites in Civil Engineering, Vol. 1, (2001), pp.41-48.

[4] I. Stocklin and U. Meier: Proceedings of the First International Conference on Bridge Maintenance, Safety and Management, (2002), pp.1-8.

[5] B. Taljsten: International Journal of Fracture Mechanics, 82 (1996), pp.253-266.

[6] Z. Wu and H. Niu: Journal of Structural Engineering, 46A (2000), pp.1431-1441.

[7] N. Horikawa, T. Kusaka, N. Takagi, M. Inoue and H. Namiki: Proceedings of the 5th China-Japan-US Joint Conference on Composites, (2002), pp.81-86.

[8] T. Kusaka, N. Horikawa, N. Namiki, N. Takagi and M. Inoue: JSCE Journal of Materials, Concrete Structures and Pavements, V-61 (2003), pp.151-163 (in Japanese).

[5] [0] 40302010 Crack initiation load Pi, kN Specimen A Specimen B Specimen C Specimen E Specimen D.

[46] [40] [27] [19] [12] [01] [0] [0] 80604020 Rebars yielding load Py, kN Specimen A Specimen B Specimen C Specimen E Specimen D.

[97] [88] [82] [76] [49] [01] [0] [0] 80604020 Maximum load Pu, kN Specimen A Specimen B Specimen C Specimen E Specimen D 104.

[91] [92] [93] [49] [0] Absorbed energy Uc, J 500 1000 1500 Specimen A Specimen B Specimen C Specimen E Specimen D 1300 490 520 690 150 Fig. 6 Summary of bending tests.

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