Table 4 Fatigue testing results for the half-scale AASHTO type II girders.
Half-scale girder designations | Loading level ranges | Loading rates | Number of loading cycles completed |
|---|---|---|---|
PS-11 | 10–35 kips (44.48–155.69 kN) | Started at 4 Hz then to 3 Hz after 2,000 cycles, then 2 Hz after 214,000 cycles | 322,000 |
PS-12 | 10–35 kips (44.48–155.69 kN) | Started at 4 Hz then to 3 Hz after 6,000 cycles, then 2 Hz after 69,000 cycles | 296,000 |
PS-13 | 10–35 kips (44.48–155.69 kN) | 2 Hz | 635,000 |