Research Article
The Experimental Studies on Behavior of Ultrahigh-Performance Concrete Confined by Hybrid Fiber-Reinforced Polymer Tubes
Table 4
Summary of test results.
| Specimen group | (MPa) | (MPa) | Confinement ratio
| Ultimate strength (MPa) | Ultimate axial strain () | Ultimate hoop strain (με) | Confinement effectiveness
| Axial strain ratio |
| P0 | N/A | N/A | N/A | 82.8 | 3080 | 829 | N/A | N/A | A1B1 | 11.48 | 253.84 | 0.13 | 130.4 | 12750 | 8960 | 1.57 | 4.76 | A2B2 | 22.95 | 507.68 | 0.26 | 168.0 | 18050 | 14730 | 2.03 | 6.74 | A3B3 | 34.43 | 761.52 | 0.39 | 208.1 | 19680 | 15070 | 2.51 | 7.34 | B1G1 | 13.38 | 285.59 | 0.16 | 122.8 | 11090 | 7760 | 1.48 | 4.14 | B2G2 | 26.76 | 571.18 | 0.32 | 165.2 | 16690 | 10570 | 2.00 | 6.23 | B3G3 | 40.14 | 856.77 | 0.48 | 204.1 | 18920 | 11920 | 2.46 | 7.06 | C1B1 | 10.17 | 442.64 | 0.12 | 110.7 | 8690 | 5250 | 1.34 | 3.24 | C2B2 | 20.34 | 885.28 | 0.25 | 162.4 | 10440 | 6870 | 1.96 | 3.90 | C3B3 | 30.51 | 1327.92 | 0.37 | 213.2 | 12850 | 8980 | 2.57 | 4.79 | C1G1 | 12.14 | 478.66 | 0.15 | 154.0 | 10120 | 7190 | 1.86 | 3.78 | C2G2 | 24.28 | 957.32 | 0.29 | 192.2 | 14650 | 10820 | 2.32 | 5.47 | C3G3 | 36.42 | 1435.98 | 0.44 | 260.2 | 18940 | 12460 | 3.14 | 7.07 | C2AG | 18.87 | 598.67 | 0.23 | 128.6 | 10330 | 6900 | 1.55 | 3.85 | C2A2G2 | 32.16 | 1073.08 | 0.38 | 201.7 | 16080 | 11160 | 2.44 | 6.00 | C2BG | 17.54 | 609.12 | 0.21 | 139.5 | 10450 | 6310 | 1.68 | 3.90 | C2B2G2 | 31.02 | 1143.54 | 0.37 | 195.3 | 14960 | 10670 | 2.36 | 5.58 |
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