Research Article
Shear Behavior of RC Beams Strengthened by External Vertical Prestressing Rebar
Table 2
Main parameters of beams.
| | Specimen label | EVPR | Ultimate load (kN) | Failure mode | | Diameter (mm) | Space (mm) | Tension force (kN) | ρsEP |
| | RC-1 | — | — | — | — | 253 | Diagonal tension failure | | RC-2 | — | — | — | — | 276 | Diagonal tension failure | | EP-P22-S1 | 14 | 340 | 22 | 0.36% | 505.0 | Shear compression failure | | EP-P22-S2 | 14 | 240 | 22 | 0.51% | 516.8 | Shear compression failure | | EP-P22-S3 | 14 | 280 | 22 | 0.44% | 527.6 | Shear compression failure | | EP-P26-S3 | 14 | 280 | 26 | 0.44% | 535.2 | Shear compression failure | | EP-P18-S3 | 14 | 280 | 18 | 0.44% | 517.6 | Shear compression failure |
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