NUMERICAL ANALYSIS ON THE EFFECT OF DAMAGE POSITION OF PILE ON SEISMIC RESPONSE

Abstract

 The damage positions of pile are affected by the soil-pile interaction and the different damage position affect the seismic response of structure. As the fundamental study on this problem, we study the effect of the damage position on pile by sensitivity analysis. In the analysis, we use the analytical model of the soil and pile that complies with shaking test. Using this analytical model, we change the damage position, and study the difference of seismic response. From this analysis, we found that if the damage position is deeper than 1/β(β: the characteristic value of a pile), the response of the structure is restrained to a limited extent, whereas the shallower damage position than 1/β dominates the response of the structure significantly. Especially, due to the damage at shallower position, the displacement response can be increased.