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Table 5 Results of momentcurvature analyses versus test results: TG-3 columns.

From: Seismic Retrofitting of RC Circular Columns Using Carbon Fiber, Glass Fiber, or Ductile PET Fiber

Column index Test results moment (kNm) Analysis results moment (kNm), curvature (10–5 rad/mm) My_calc/My_test (%) Mu_calc/Mu_test (%) Curvature ductility Φuy
Yield Ultimate
My_test Mu_test My_calc Φy Mu_calc Φu
C-3-control 183 199 150 1.12 192 3.38 82.0 96.3 3.0
C-3-PET (hoop fibers only) 166 238 152 1.14 213 7.87 91.4 89.4 6.9
C-3-PET (hoop + axial fibers) 153 1.14 223 7.68 92.0 93.5 6.7
C-3-HF-hoop 173 210 149 1.13 200 6.64 86.4 95.5 5.7
C-3-HF-spiral 166 233 89.7 86.1
  1. My_test is measured moment at yield stage; Mu_test is measured moment at ultimate stage; My_calc is theoretical momenta at yield stage; Φy is theoretical curvature of column at yield stage; Mu_calc is theoretical momenta at ultimate stage; Φu is theoretical curvature of column at ultimate stage.