Location
St. Louis, Missouri
Presentation Date
13 Mar 1991, 1:30 pm - 3:30 pm
Abstract
A method for reducing earthquake load acting on piles by means of ground walls installed around pile foundation is proposed. First, a shaking table test was carried out. Test specimens are 1/40 scale structural models, which consist of soil, piles and a building with or without ground walls. The pile head moment of the specimens with ground walls show only 60% of that of the specimens without the ground walls. An FEM analysis was carried out for both cases and the results were compared with the test results. The comparison showed a good agreement. Furthermore, a simplified calculation method is proposed. This method takes account of the inertia force of buildings and the earth pressure to piles. The earth pressure is represented by Winkler's springs. This simplified model gives a good agreement with those experimental and analytical results and is proved to be applicable to design purposes.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
2nd International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 1991 University of Missouri--Rolla, 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
Nagataki, Yoshiaki and Senoo, Hiroaki, "Earthquake Resistant Piles Reinforced with Ground Walls" (1991). International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics. 15.
https://scholarsmine.mst.edu/icrageesd/02icrageesd/session05/15
Included in
Earthquake Resistant Piles Reinforced with Ground Walls
St. Louis, Missouri
A method for reducing earthquake load acting on piles by means of ground walls installed around pile foundation is proposed. First, a shaking table test was carried out. Test specimens are 1/40 scale structural models, which consist of soil, piles and a building with or without ground walls. The pile head moment of the specimens with ground walls show only 60% of that of the specimens without the ground walls. An FEM analysis was carried out for both cases and the results were compared with the test results. The comparison showed a good agreement. Furthermore, a simplified calculation method is proposed. This method takes account of the inertia force of buildings and the earth pressure to piles. The earth pressure is represented by Winkler's springs. This simplified model gives a good agreement with those experimental and analytical results and is proved to be applicable to design purposes.
