Seismic Response of End Bearing Piles

by Raul Flores-Berrones, (A.M.ASCE), Prof.; School of Engrg., National Univ. of Mexico, Mexico 20, D.F., Mexico,
Robert V. Whitman, (F.ASCE), Prof. of Civ. Engrg.; Massachusetts Inst. of Tech., Cambridge, Mass.,

Serial Information: Journal of the Geotechnical Engineering Division, 1982, Vol. 108, Issue 4, Pg. 554-569

Document Type: Journal Paper


A very simple analysis of dynamic soil-pile-supported mass interaction is presented as an aid to understanding pile foundations behaviour during earthquakes. The equilibrium equations of the soil and pile movements during seismic motions are established and the response of the soil-pile system is obtained as a function of the existing frequency; for simplicity the analysis was based on Winkler's model although the same procedure can be applied using a more refined model. The effect of the supported mass is studied, the natural frequency of the system is obtained, and some practical design considerations are presented. A method for considering group effects is also presented.

Subject Headings: Soil-pile interaction | Seismic effects | Soil analysis | Dynamic structural analysis | Dynamic analysis | Earthquakes | Equilibrium | Piles

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