Design of Machine Foundations on Piles

by Jogeshwar P. Singh, (A.M.ASCE), Sr. Engr.; Dames and Moore, San Francisco, Calif.,
Adrianus C. Jobsis, Sr. Project Engr.; Texaco, Inc., Houston, Tex.,
Neville C. Donovan, (F.ASCE), Principal Engineer and Part.; Dames and Moore, San Francisco, Calif.,

Serial Information: Journal of the Geotechnical Engineering Division, 1977, Vol. 103, Issue 8, Pg. 863-877

Document Type: Journal Paper


A practical method for the analysis of pile-supported foundations subjected to dynamic loadings is described. The method uses a single-degree-of-freedom mass-spring-dashpot model of a form similar to that used for shallow foundations to analyze the response of the actual system. The method of analysis uses the concept of an equivalent cantilever, which is a technique to simplify the soil-structure interaction problem, and allow the computation of equivalent spring constants in all modes of vibration. The method is demonstrated with an actual case history where computed and observed motions are compared.

Subject Headings: Foundation design | Machine foundations | Pile foundations | Shallow foundations | Dynamic loads | Equipment and machinery | Case studies | Dynamic structural analysis

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