Abstract
Design of foundations in earthquake prone areas needs special considerations. Shallow foundations may experience a reduction in bearing capacity and increase in settlement and tilt due to seismic loading. the reduction in bearing capacity depends on the nature and type of soil and ground acceleration parameters. in the case of piles, the soil-pile behavior under earthquake loading is generally nonlinear. the nonlinearity must be accounted for by defining soil-pile stiffness in terms of strain dependent soil modulus. a comparison of observed and predicted pile behavior under dynamic loads has attracted the attention of several investigators. the lateral dynamic pile response of single piles predicted by analytical models often yields higher natural frequencies and lower resonant amplitudes compared to those determined from field tests in horizontal vibrations only. This has been found to be due to overestimated shear modulus and radiation damping of the soil. the authors made an investigation to determine a simple method to improve the theoretical predictions of piles embedded in fine soils. based upon this investigation shear strain dependent reduction factors are proposed for determining the shear modulus and damping for pile response calculations. © ASCE 2010.
Recommended Citation
V. K. Puri and S. Prakash, "Foundations for Dynamic Loads," Geotechnical Special Publication, no. 198 GSP, pp. 517 - 533, American Society of Civil Engineers, Oct 2010.
The definitive version is available at https://doi.org/10.1061/41093(372)26
Department(s)
Civil, Architectural and Environmental Engineering
International Standard Book Number (ISBN)
978-078441093-6
International Standard Serial Number (ISSN)
0895-0563
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 American Society of Civil Engineers, All rights reserved.
Publication Date
25 Oct 2010
