ABSTRACT
The effect of equivalent pile length or moment gradient on the low cycle fatigue performance of steel H-piles is investigated by performing comparable tests on the HP steel sections having same dimensions, but different lengths of piles. For this purpose, the equivalent pile length used in this study is determined as 1.30 m and 1.90 m for HP220x57. To investigate the effect of equivalent pile length or moment gradient on the low cycle fatigue performance of steel H-piles, the HP 220x57 specimens having 1.30 m and 1.90 m length are tested under same loading conditions. Comparisons between experimental test results are made in terms of equivalent length in the steel H-pile specimens for various lateral load values. It is observed that larger moment gradient (or shorter equivalent length of pile) has an adverse effect on the low cycle fatigue performance of steel H-piles.
