Faghihnia Torshizi Mostafa and Saitoh Masato
Influence of Pile Radius on Inertial Response of Pile Group in Fundamental Frequency of Homogeneous Soil Medium
355 - 361
2017
11
4
International Journal of Geological and Environmental Engineering
https://publications.waset.org/pdf/10007065
https://publications.waset.org/vol/124
World Academy of Science, Engineering and Technology
An efficient method is developed for the response of a group of vertical, cylindrical fixedhead, finite length piles embedded in a homogeneous elastic stratum, subjected to harmonic force atop the pile group cap. Pile to pile interaction is represented through simplified beamondynamicWinklerfoundation (BDWF) with realistic frequencydependent springs and dashpots. Pile group effect is considered through interaction factors. New closedform expressions for interaction factors and curvature ratios atop the pile are extended by considering different boundary conditions at the tip of the piles (fixed, hinged). In order to investigate the fundamental characteristics of inertial bending strains in pile groups, inertial bending strains at the head of each pile are expressed in terms of slenderness ratio. The results of parametric study give valuable insight in understanding the behavior of fixed head pile groups in fundamental natural frequency of soil stratum.
Open Science Index 124, 2017