Location
San Diego, California
Presentation Date
26 May 2010, 4:45 pm - 6:45 pm
Abstract
To investigate inertial and kinematic effects on stress distributions within a pile group, physical model tests were conducted at EDefense, one of the largest shaking table facilities in the world. A 3x3 steel pile group supporting a foundation with a superstructure was set in a dry sand deposit prepared in a cylindrical laminar box with a height of 6.5 m and a diameter of 8.0 m. Natural periods of superstructures were variable in the tests. The tests were conducted under one-, two- or three-dimensional shaking. The test results have shown that pile stresses were mainly controlled by the inertial force when the natural period of superstructure was shorter than or close to that of the ground. In this case, the pile group effects were remarkable, in which pile stresses were the largest in the leading pile and the smallest in the following pile. In contrast, the pile stresses were mainly controlled by the ground displacement when the natural period of superstructure was longer than that of the ground. In this case, the pile group effects were insignificant in such a way that the pile stresses were almost the same within the pile group.
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
Suzuki, Hiroko and Tokimatsu, Kohji, "Effects of Soil-Structure Interaction on Stress Distribution within a Pile Group under Multi-Dimensional Loading" (2010). International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics. 19.
https://scholarsmine.mst.edu/icrageesd/05icrageesd/session05/19
Included in
Effects of Soil-Structure Interaction on Stress Distribution within a Pile Group under Multi-Dimensional Loading
San Diego, California
To investigate inertial and kinematic effects on stress distributions within a pile group, physical model tests were conducted at EDefense, one of the largest shaking table facilities in the world. A 3x3 steel pile group supporting a foundation with a superstructure was set in a dry sand deposit prepared in a cylindrical laminar box with a height of 6.5 m and a diameter of 8.0 m. Natural periods of superstructures were variable in the tests. The tests were conducted under one-, two- or three-dimensional shaking. The test results have shown that pile stresses were mainly controlled by the inertial force when the natural period of superstructure was shorter than or close to that of the ground. In this case, the pile group effects were remarkable, in which pile stresses were the largest in the leading pile and the smallest in the following pile. In contrast, the pile stresses were mainly controlled by the ground displacement when the natural period of superstructure was longer than that of the ground. In this case, the pile group effects were insignificant in such a way that the pile stresses were almost the same within the pile group.
