Location
San Diego, California
Presentation Date
26 May 2010, 4:45 pm - 6:45 pm
Abstract
The lateral load resistance of pile foundations is critically important to the design of structures that may be subjected to earthquakes. This paper presents computational modeling results of the response of a large pile group system under lateral load. The open-source platform OpenSees is employed to conduct a nonlinear 3-dimensional finite element analysis. The piles are modeled by beam-column elements, and rigid beam-column elements are used to model the pile size (diameter). In order to facilitate the pre- and post-processing phases, a recently developed user interface OpenSeesPL is employed. Distribution of load within the pile group is presented and the group interaction effects are discussed. Under lateral loading, corner piles shoulder the greatest burden in resisting the resulting shear, bending, and axial loads. Lower compressive or even tensile axial forces in the back piles may greatly weaken/deteriorate the structural reinforced concrete properties. Further validation and calibration of the analysis framework may be conducted with the aid of case histories and experimental data.
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
Lu, Jinchi; Elgamal, Ahmed; Sikorsky, Charles; and Shantz, Thomas, "Computational Modeling of a Large Pile Group Under Lateral Load" (2010). International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics. 9.
https://scholarsmine.mst.edu/icrageesd/05icrageesd/session05/9
Included in
Computational Modeling of a Large Pile Group Under Lateral Load
San Diego, California
The lateral load resistance of pile foundations is critically important to the design of structures that may be subjected to earthquakes. This paper presents computational modeling results of the response of a large pile group system under lateral load. The open-source platform OpenSees is employed to conduct a nonlinear 3-dimensional finite element analysis. The piles are modeled by beam-column elements, and rigid beam-column elements are used to model the pile size (diameter). In order to facilitate the pre- and post-processing phases, a recently developed user interface OpenSeesPL is employed. Distribution of load within the pile group is presented and the group interaction effects are discussed. Under lateral loading, corner piles shoulder the greatest burden in resisting the resulting shear, bending, and axial loads. Lower compressive or even tensile axial forces in the back piles may greatly weaken/deteriorate the structural reinforced concrete properties. Further validation and calibration of the analysis framework may be conducted with the aid of case histories and experimental data.
