Resistance of Inner Soil to the Horizontal Vibration of Pipe Piles

The resistance of the soil inside a pipe-pile's cavity to the horizontal dynamic response of the pipe pile is quantified by extending a well-established analytical model from the literature for the soil surrounding solid piles. Accordingly, the derived solution is used to investigate the differences in the dynamic resistance mechanisms associated with the inner soil and outer soil surrounding the pipe pile. (C) 2017 American Society of Civil Engineers.