Location
San Diego, California
Presentation Date
27 May 2010, 7:30 pm - 9:00 pm
Abstract
This study performs a parametric study on the displacement ductility capacity of a fixed-head pile. The Winkler-beam model is employed, in which both the soil nonlinearity and pile nonlinearity are adequately considered. In this parametric study, the pile is regarded as a limited ductility structure which conditionally allows the pile deformation to enter the plastic range during loadings. The analysis variables include the axial force, the pile diameter, the longitudinal reinforcement ratio, and the soil stiffness. The relationships of the displacement ductility capacity of the pile to the curvature ductility capacity and to the over-strength ratio of the pile section are examined through a large number of pushover analyses. Results show that the axial force level, the pile diameter, and the steel ratio remarkably influence the displacement ductility capacity of a fixed-head pile. Their influence can be represented mainly by the over-strength ratio of the pile section. Besides, the influence of the soil stiffness is insignificant: the displacement ductility capacity slightly decreases with the soil stiffness.
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
Chiou, Jiunn-Shyang and Chen, Cheng-Hsing, "Displacement Ductility Capacity of Fixed-Head Piles" (2010). International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics. 5.
https://scholarsmine.mst.edu/icrageesd/05icrageesd/session09/5
Included in
Displacement Ductility Capacity of Fixed-Head Piles
San Diego, California
This study performs a parametric study on the displacement ductility capacity of a fixed-head pile. The Winkler-beam model is employed, in which both the soil nonlinearity and pile nonlinearity are adequately considered. In this parametric study, the pile is regarded as a limited ductility structure which conditionally allows the pile deformation to enter the plastic range during loadings. The analysis variables include the axial force, the pile diameter, the longitudinal reinforcement ratio, and the soil stiffness. The relationships of the displacement ductility capacity of the pile to the curvature ductility capacity and to the over-strength ratio of the pile section are examined through a large number of pushover analyses. Results show that the axial force level, the pile diameter, and the steel ratio remarkably influence the displacement ductility capacity of a fixed-head pile. Their influence can be represented mainly by the over-strength ratio of the pile section. Besides, the influence of the soil stiffness is insignificant: the displacement ductility capacity slightly decreases with the soil stiffness.
