Research Article
Experimental Research of Continuous Concrete Beams with GFRP Reinforcement
Table 1
Reinforcement details and compressive strength of concrete for tested beams.
| Beam | Day of testing | Middle support-top reinforcement | Midspan-bottom reinforcement | Concrete compressive strength fc (MPa) | Longitudinal reinforcement | EA (kN) | Reinforcement ratio (ACI) | Longitudinal reinforcement | EA (kN) | Reinforcement ratio (ACI) | ρf (%) | ρfb (%) | ρf/ρfb | ρf (%) | ρfb (%) | ρf/ρfb |
| S1-15 | 28 | 2Ø10 + 1Ø12 | 49526 | 0.82 | 1.26 | 0.65 | 2Ø12 + 1Ø10 | 54763 | 0.92 | 1.31 | 0.71 | 42.2 | G1-0 | 29 | 3Ø14 | 20318 | 1.40 | 0.46 | 3.01 | 2Ø12 + 1Ø10 | 13558 | 1.00 | 0.57 | 1.75 | 42.2 | G1-15 | 30 | 2Ø10 + 1Ø14 | 12604 | 0.86 | 0.53 | 1.63 | 2Ø12 + 1Ø14 | 17415 | 1.19 | 0.46 | 2.58 | 42.2 | G1-25 | 30 | 2Ø10 + 1Ø12 | 11153 | 0.74 | 0.51 | 1.44 | 2Ø14 + 1Ø12 | 18867 | 1.25 | 0.45 | 2.80 | 42.2 | G2-0 | 28 | 4Ø12 | 17654 | 1.11 | 0.33 | 3.35 | 2Ø10 + 2Ø9 | 10734 | 0.65 | 0.29 | 2.27 | 50.2 | G2-15 | 29 | 3Ø10 + 1Ø12 | 12482 | 0.79 | 0.33 | 2.37 | 2Ø12 + 2Ø9 | 14182 | 0.86 | 0.32 | 2.69 | 50.2 | G2-25 | 30 | 3Ø9 | 8033 | 0.48 | 0.29 | 1.70 | 3Ø12 + 1Ø10 | 15930 | 1.10 | 0.37 | 3.02 | 50.2 |
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