| Specimen | Surface cond. | Concrete strength | Dia. of rebar (mm) | No. of rebar | Steel ratio (As/Ac) | Measured shear force (kN) | Stress (MPa) | (1)/(2) | |||||
| Upper layer | Bottom layer | A | B | C | Ave. | Test (1) | Equation (2) | ||||||
| S1-D10 | Smooth | SC80 | NC30 | 10 | 1 | 0.55 | 152.6 | 180.5 | 238.8 | 190.6 | 1.3 | 1.18 | 1.12 |
| S2-D10 | 2 | 1.09 | 94.4 | 410.1 | 221.3 | 315.7 | 2.2 | 1.31 | 1.67 | ||||
| S3-D10 | 3 | 1.64 | 250.3 | 300.7 | 222.8 | 257.9 | 1.8 | 1.44 | 1.24 | ||||
| S4-D10 | 4 | 2.18 | 281.4 | 370.8 | 206.3 | 286.2 | 2.0 | 1.57 | 1.26 | ||||
| S6-D10 | 6 | 3.27 | 340.5 | 410.1 | 395.0 | 381.9 | 2.7 | 1.84 | 1.44 | ||||
| S1-D16 | 16 | 1 | 1.40 | 499.4 | 176.4 | 233.3 | 303.0 | 2.1 | 1.39 | 1.52 | |||
| S2-D16 | 2 | 2.79 | 337.7 | 370.0 | 400.4 | 369.4 | 2.6 | 1.72 | 1.49 | ||||
| S3-D16 | 3 | 4.19 | 195.8 | 279.8 | 199.5 | 225.0 | 1.6 | 2.06 | 0.76 | ||||
| S4-D16 | 4 | 5.59 | 357.6 | 418.3 | 283.5 | 353.1 | 2.5 | 2.39 | 1.03 | ||||
| S6-D16 | 6 | 8.38 | 422.7 | 402.2 | 438.5 | 421.1 | 2.9 | 3.06 | 0.96 | ||||
| R1-D10 | Indented | 10 | 1 | 0.55 | 423.2 | 360.1 | 329.8 | 371.0 | 2.6 | 1.70 | 1.52 | ||
| R2-D10 | 2 | 1.09 | 400.0 | 468.5 | 531.7 | 466.7 | 3.2 | 1.89 | 1.71 | ||||
| R3-D10 | 3 | 1.64 | 418.8 | 569.1 | 436.2 | 474.5 | 3.3 | 2.09 | 1.58 | ||||
| R4-D10 | 4 | 2.18 | 424.4 | 527.2 | 398.3 | 450.0 | 3.1 | 2.29 | 1.37 | ||||
| R6-D10 | 6 | 3.27 | 478.1 | 458.6 | 516.6 | 484.4 | 3.4 | 2.68 | 1.26 | ||||
| R1-D16 | 16 | 1 | 1.40 | 481.6 | 500.6 | 548.8 | 510.3 | 3.5 | 2.00 | 1.77 | |||
| R2-D16 | 2 | 2.79 | 406.4 | 405.8 | 527.1 | 446.4 | 3.1 | 2.51 | 1.24 | ||||
| R3-D16 | 3 | 4.19 | 436.4 | 450.1 | 493.7 | 460.1 | 3.2 | 3.01 | 1.06 | ||||
| R4-D16 | 4 | 5.59 | 438.4 | 548.6 | 555.5 | 514.2 | 3.6 | 3.51 | 1.02 | ||||
| R6-D16 | 6 | 8.38 | 621.6 | 549.3 | 610.4 | 593.8 | 4.1 | 4.52 | 0.91 | ||||
| NR1-D10 | Indented | NC30 | 10 | 1 | 0.55 | 288.4 | 359.6 | 284.3 | 310.8 | 2.2 | 1.70 | 1.27 | |
| NR2-D10 | 2 | 1.09 | 366.0 | 289.4 | 301.9 | 319.1 | 2.2 | 1.89 | 1.17 | ||||
| NR3-D10 | 3 | 1.64 | 380.0 | 344.5 | 402.1 | 375.5 | 2.6 | 2.09 | 1.25 | ||||
| NR4-D10 | 4 | 2.18 | 471.5 | 442.9 | 403.9 | 439.4 | 3.1 | 2.29 | 1.34 | ||||
| NR6-D10 | 6 | 3.27 | 501.4 | 481.6 | 431.7 | 471.6 | 3.3 | 2.68 | 1.22 | ||||
| NR1-D16 | 16 | 1 | 1.40 | 369.0 | 373.0 | 358.1 | 366.7 | 2.5 | 2.00 | 1.27 | |||
| NR2-D16 | 2 | 2.79 | 340.5 | 345.9 | 421.8 | 369.4 | 2.6 | 2.51 | 1.02 | ||||
| NR3-D16 | 3 | 4.19 | 430.9 | 325.0 | 383.3 | 379.7 | 2.6 | 3.01 | 0.88 | ||||
| NR4-D16 | 4 | 5.59 | 505.5 | 460.6 | 529.5 | 498.5 | 3.5 | 3.51 | 0.99 | ||||
| NR6-D16 | 6 | 8.38 | 529.6 | 530.5 | - | 530.1 | 3.7 | 4.52 | 0.82 | ||||