Table 4 Load deflection at different load stages and shear strength.
Slabs | Pcr (kN) | Δcr (mm) | Py (kN) | Δy (mm) | Pu (kN) | Δu (mm) | Vu (measured shear strength) ACI 421-1R (N/mm2) | Vn (nominal shear strength) ACI 421-1R (N/mm2) |
|---|---|---|---|---|---|---|---|---|
S1 | 20 | 0.5 | 112 | 10.5 | 130 | 13 | 3.00 | 1.83 |
S2 | 22 | 0.5 | 120 | 7.5 | 135 | 15.5 | N/A | N/A |
S3 | 23 | 0.6 | 120 | 8 | 141 | 17 | N/A | N/A |
S4 | 25 | 0.7 | 138 | 7.2 | 200 | 22 | 3.69 | 4.16 |
S5 | 27 | 0.6 | 140 | 6.4 | 220 | 28 | 5.08 | 1.1 |
S6 | 30 | 0.6 | 145 | 9 | 244 | 35 | 5.63 | 1.57 |
S7 | 35 | 0.8 | 185 | 14.5 | 300 | – | 2.97 | 1.83 |