ABSTRACT
Many post-earthquake investigations have found that some pre-tensioned high-strength spun concrete piles (PHC piles) have experienced different kinds and degrees of damage. However, the damage characteristics of PHC piles have not been systematically quantified. In the present study, the dynamic time history analysis method combined with the concrete damaged plasticity (CDP) model is adopted to research and quantify the damage characteristics of the PHC pile under different seismic ground motions. The tensile and compressive damage of the PHC pile under different ground motions with various input intensities are presented and compared. The PHC pile shows different seismic damage characteristics under various seismic ground motions. Consequently, it is of great significance to adopt probabilistic methods to quantify the randomness of seismic ground motions and the corresponding effect on the seismic damage characteristics of pile foundations.
