Table 1: Vertical forces (nominal).
| Units | Fv (kN) | a (mm) | b (mm) | c (mm) | RVO (kN) | RVU (kN) |
| BSF225 | 225 | 115 | 340 | 195 | 327 | 102 |
| BSF300 | 300 | 125 | 330 | 235 | 456.4 | 156.4 |
| BSF450 | 450 | 152.5 | 432.5 | 250 | 660.7 | 210.7 |
| BSF700 | 700 | 165 | 420 | 280 | 1068 | 368 |
| BSF1100 | 1100 | 206 | 704 | 360 | 1557 | 457 |
The table above is for “ideal” values of a, b and c. Larger forces arise when including unfavorable tolerances on location of anchorage reinforcement (± 5mm) as well as construction site deviation (10mm).
Table 2: Vertical forces (maximum).
| Units | Fv (kN) | a (mm) | b (mm) | c (mm) | RVO (kN) | RVU (kN) |
| BSF225 | 225 | 130 | 330 | 195 | 340.2 | 115.2 |
| BSF300 | 300 | 140 | 320 | 235 | 475.3 | 175.3 |
| BSF450 | 450 | 167.5 | 422.5 | 250 | 681.7 | 231.7 |
| BSF700 | 700 | 180 | 410 | 280 | 1103 | 403 |
| BSF1100 | 1100 | 221 | 694 | 360 | 1587 | 487 |
For calculation, use memo BSF Calculating XL.
More info, see memo no. 551 and 521.