Table 3 Results of the tested Beams.
Group | Beam ID | First crack load Pcr (kN) | Ultimate load Pu (kN) | Deflection Δ (mm) | Failure mode |
|---|---|---|---|---|---|
G 1 | G01-GPC20 | 4.30 | 26.3 | 29.34 | Tension failure of GFRP bars |
G02-GPC20 | 4.70 | 56.5 | 42.12 | Tension failure of GFRP bars | |
G03-GPC20 | 11.70 | 81.7 | 39.83 | Tension failure of GFRP bars followed by compressive failure of the top concrete part | |
G 2 | G04-GPC35 | 11.9 | 35.8 | 25.13 | Tension failure of GFRP bars |
G05-GPC35 | 12.40 | 88.3 | 39.35 | Tension failure of GFRP bars followed by compressive failure of the top concrete part | |
G06-GPC35 | 15.50 | 124.7 | 36.80 | Tension failure of GFRP bars followed by compressive failure of the top concrete part | |
G3 | G07-GPC50 | 18.30 | 57.7 | 28.42 | Tension failure of GFRP bars |
G08-GPC50 | 20.8 | 100.0 | 28.98 | Tension failure of GFRP bars followed by compressive failure of the top concrete part | |
G09-GPC50 | 22.60 | 145.8 | 35.17 | Compressive failure of the top concrete part | |
G4 | G10-OPC35 | 15.50 | 34.2 | 17.66 | Tension failure of GFRP bars |
G11-OPC35 | 20.00 | 84.4 | 31.00 | Tension failure of GFRP bars followed by compressive failure of the top concrete part | |
G12-OPC35 | 20.90 | 137.8 | 41.14 | Debonding of GFRP from the concrete at the bottom of the beam |