From: Seismic Retrofitting of RC Circular Columns Using Carbon Fiber, Glass Fiber, or Ductile PET Fiber
Column index | Load | Displacement | Displacement ductility (mm) | Drift ratio (%) | Failure mode | ||
---|---|---|---|---|---|---|---|
Py (kNm) | Pmax (kNm) | Δy (mm) | Δmax (mm) | ||||
C-1-Control | 116 | 147 | 11.5 | 50.4 | 4.4 | 4.2 | Main bar buckling |
C-1-CF | 126 | 178 | 7.9 | 78.4 | 9.9 | 6.5 | CF rupture |
C-1-PET | 130 | 188 | 7.2 | 96.1 | 13.3 | 8.0 | Main bar rupture |
C-2-Control | 134 | 157 | 11.3 | 58.5 | 5.2 | 4.9 | Main bar buckling |
C-2-GF | 122 | 174 (222)1 | 13.7 | 98.0 (148)1 | 7.2 (10.8)1 | 8.2 (12.3)1 | GF rupture |
C-2-PET | 134 | 180 | 10.6 | 96.0 | 9.1 | 8.0 | Main bar rupture |
C-3-Control | 146 | 172 | 15.1 | 44.6 | 3.0 | 3.6 | Shear failure |
C-3-PET | 133 | 214 | 9.6 | 83.3 | 8.7 | 6.7 | Main bar rupture |
C-3-HF-hoop | 138 | 195 | 11.5 | 96.7 | 8.4 | 7.8 | Main bar rupture |
C-3-HF-spiral | 133 | 211 | 10.9 | 88.4 | 8.1 | 7.1 | Shear failure (upper part of column) |
C-3-HF-spiral-LS | 148 | 217 | 10.0 | 82.0 | 8.2 | 6.6 | Shear failure (upper part of column) |