Research Article
Strengthening Effect of Prestressed Near-Surface-Mounted CFRP Tendon on Reinforced Concrete Beam
| | Specimen | Cracking | Yield | Failure | Ductility | Failure mode | | Load (kN) | Disp. (mm) | Ratio to Control (%) | Load (kN) | Disp. (mm) | Ratio to Control (%) | Load (kN) | Disp. (mm) | Ratio to Control (%) |
| | Control-1 | 68.3 | 2.5 | — | 160.1 | 21.1 | — | 193.2 | 105.4 | — | 5.00 | C | | M-SC-1-B-40-0 | 118 | 4.1 | 72.77 | 224.4 | 22.4 | 40.16 | 298.9 | 84.5 | 54.71 | 3.77 | F | | M-SC-2-B-40-0 | 143.2 | 4.6 | 109.66 | 283.2 | 25.2 | 76.89 | 379.4 | 98.9 | 96.38 | 3.92 | F | | M—GR-1-B-40-0 | 120.9 | 4.4 | 77.01 | 216.7 | 21 | 35.35 | 265.7 | 86.5 | 37.53 | 4.12 | F | | Control-2 | 37.61 | 1.18 | — | 145.22 | 20.32 | — | 175.5 | 166.59 | — | 8.20 | C | | E-OX-1-B-40-0 | 69.24 | 2.48 | 84.10 | 198.89 | 22.06 | 36.96 | 283.6 | 141.88 | 61.60 | 6.43 | F | | E-OX-1-UB-40-0 | 68.36 | 2.38 | 81.76 | 186.52 | 21.2 | 28.44 | 243.15 | 126.44 | 38.55 | 5.96 | C, F | | E-OX-1-B-30-0 | 69.53 | 2.06 | 84.87 | 197.57 | 21.9 | 36.05 | 272.74 | 139.06 | 55.41 | 6.35 | F | | E-OX-1-B-40-30 | — | — | — | 199.52 | 21.34 | 37.39 | 290.08 | 122.18 | 65.29 | 5.73 | F | | E-OX-1-B-40-60 | — | — | — | 201.85 | 19.86 | 39.00 | 274.98 | 99.72 | 56.68 | 5.02 | C, F |
|
|
Note. C = concrete crushing; F = CFRP rupture.
|
