Location
San Diego, California
Presentation Date
26 May 2010, 4:45 pm - 6:45 pm
Abstract
In pile-foundation seismic design, until a few years ago, only inertial loads applied by the overstructure at the pile cap were taked into account, neglecting the dynamic interaction. So, good approaches to evaluate inertial interaction effects have been developed, but not for kinematic interaction. Modern national and international codes require to take into account the dynamic soil-pile-ovestructure interaction (inertial and kinematic), without giving any information about kinematic interaction evaluation criteria. In this work a practical method based on the Winkler foundation model is applied to analyse the seismic response of single piles. The analysis is focused on a single pile embedded in a two-layered soil profile. The two layers are h1 and h2 thick, with two different shear moduli, G1 and G2, respectively. The system is subjected to a conventional dynamic input motion. Different sharp stiffness contrast, expressed in terms of variation of the ratio G1/G2 are investigated. A parametric study on the influence trained on the maximum bending moment, by the depth of the discontinuity between the two layers and by the pile slenderness, is brought about. The results are presented in terms of bending moments expressed in a dimensionless form.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
5th International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics
Publisher
Missouri University of Science and Technology
Document Version
Final Version
Rights
© 2010 Missouri University of Science and Technology, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Ardita, Daniela; Maugeri, Michele; Motta, Ernesto; and Raciti, Erminia, "A Parametric Study on Soil-Pile Kinematic Interaction in Layered Soils" (2010). International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics. 1.
https://scholarsmine.mst.edu/icrageesd/05icrageesd/session05/1
Included in
A Parametric Study on Soil-Pile Kinematic Interaction in Layered Soils
San Diego, California
In pile-foundation seismic design, until a few years ago, only inertial loads applied by the overstructure at the pile cap were taked into account, neglecting the dynamic interaction. So, good approaches to evaluate inertial interaction effects have been developed, but not for kinematic interaction. Modern national and international codes require to take into account the dynamic soil-pile-ovestructure interaction (inertial and kinematic), without giving any information about kinematic interaction evaluation criteria. In this work a practical method based on the Winkler foundation model is applied to analyse the seismic response of single piles. The analysis is focused on a single pile embedded in a two-layered soil profile. The two layers are h1 and h2 thick, with two different shear moduli, G1 and G2, respectively. The system is subjected to a conventional dynamic input motion. Different sharp stiffness contrast, expressed in terms of variation of the ratio G1/G2 are investigated. A parametric study on the influence trained on the maximum bending moment, by the depth of the discontinuity between the two layers and by the pile slenderness, is brought about. The results are presented in terms of bending moments expressed in a dimensionless form.
