Table 2 Column index, concrete strength, steel/fiber reinforcement ratios and fiber wrapping scheme.
From: Seismic Retrofitting of RC Circular Columns Using Carbon Fiber, Glass Fiber, or Ductile PET Fiber
TG | Specimen index | fcu MPa | ρst % | ρtie % | ρf % | Fiber type | # of layers | Method of application [Area of fiber (mm2/pitch)] |
|---|---|---|---|---|---|---|---|---|
1 | C-1-Control | 21.0 | 1.93 | 0.37 | – | – | – | – |
C-1-CF | 0.108 | CF | 1 | CF sheet (27.23) | ||||
C-1-PET | 1.05 | PET | 20 | PET sheet (262.5) | ||||
2 | C-2-Control | 30.8 | 1.93 | 0.37 | – | – | – | – |
C-2-GF | 0.108 | GF | 1 | GF sheet (106) | ||||
C-2-PET | 1.05 | PET | 10 | PET sheet (132) | ||||
3 | C-3-Control | 41.1 | 1.83 | 0.29 | – | – | – | – |
C-3-PET | 1.31 | PET | 25 | PET sheet (393.8) | ||||
C-3-HF-hoop | 1.32 | HF | 1 | HF strand, hoop (PET = 362.4&AF = 32.7) | ||||
C-3-HF-spiral | 1.32 | HF | 1 | HF strand, spiral (PET = 362.4&AF = 32.7) | ||||
C-3-HF-spiral-LS | 1.32 | HF | 1 | HF strand, spiral-LS (PET = 362.4&AF = 32.7) |