Location
San Diego, California
Presentation Date
30 Mar 2001, 10:30 am - 12:30 pm
Abstract
Partially embedded rectangular foundations are considered. Soil at the side of the foundation is decoupled from that at the base and is treated as a stack of horizontal layers of unit thickness that are mutually uncoupled. The side soil stiffnesses/depth are formulated from the vibration of a massless rigid rectangular disc in an individual layer. In the development of formulations, the layer medium is further simplified with a column-spring system. All these simplifications lead to simple expressions suitable for practical use. The two parameters in these expressions are defined by iteration using two coupled simple equations. Dynamic soil stiffesses at the side are computed for foundations of rectangular base with various aspect ratios. Despite significant simplification, the developed expressions enable us to compute the side soil stiffnesses for rectangular foundations reasonably close to those computed by a far rigorous approach. An example of its application is provided.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
4th International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 2001 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
Nogami, Toyoaki and Chen, Ham Shean, "Partially Embedded Rectangular Foundations: A Simplified Approach to Compute Dynamic Stiffnesses" (2001). International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics. 22.
https://scholarsmine.mst.edu/icrageesd/04icrageesd/session02/22
Included in
Partially Embedded Rectangular Foundations: A Simplified Approach to Compute Dynamic Stiffnesses
San Diego, California
Partially embedded rectangular foundations are considered. Soil at the side of the foundation is decoupled from that at the base and is treated as a stack of horizontal layers of unit thickness that are mutually uncoupled. The side soil stiffnesses/depth are formulated from the vibration of a massless rigid rectangular disc in an individual layer. In the development of formulations, the layer medium is further simplified with a column-spring system. All these simplifications lead to simple expressions suitable for practical use. The two parameters in these expressions are defined by iteration using two coupled simple equations. Dynamic soil stiffesses at the side are computed for foundations of rectangular base with various aspect ratios. Despite significant simplification, the developed expressions enable us to compute the side soil stiffnesses for rectangular foundations reasonably close to those computed by a far rigorous approach. An example of its application is provided.
