Kinematic Seismic Response of Single Piles and Pile Groups
Publication: Journal of Geotechnical Engineering
Volume 117, Issue 12
Abstract
Results of a numerical study are presented on the kinematic response of groups of vertical floating piles connected through rigid massless caps and subjected to vertically propagating harmonic S‐waves. Pile‐soil and pile‐pile interaction effects are modeled rigorously. Parametric results for the “effective seismic pile‐cap motion,” normalized by the “free‐field” ground‐surface motion, are displayed in dimensionless form for a number of typical pile‐group configurations, in three idealized soil profiles: a homogeneous half‐space, a half‐space with modulus proportional to depth, and a two‐layered stratum. It is shown that, whereas the influence of the nature of the soil profile is profound at all frequencies, the effects of pile‐group configuration, number of piles in the group, and relative spacing between piles are usually insignificant for lateral displacements, but quite important for pile‐cap rotations. Pile‐head “fixity” conditions and the pile/soil modulus ratio are found to affect appreciably and in a similar way the seismic response of a single pile and of a pile group.
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References
1.
Ahmad, S. (1986). “Linear and nonlinear dynamic analysis by boundary element method,” thesis presented to State University of New York at Buffalo, Buffalo, New York, in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
2.
Barghouthi, (1984). “Pile response to seismic waves,” thesis presented Univ. of Wisconsin, at Madison, Wisconsin, in partial fulfillment of the requirements forthe degree of Doctor of Philosophy.
3.
Blaney, G. W., Kausel, E., and Roesset, J. M.(1976). “Dynamic stiffness of piles.” Proc. Second Int. Conference Numerical Meth. in Geomech., ASCE, 1001–1012.
4.
Flores‐Berrones, R., and Whitman, R. V. (1982). “Seismic responses of end‐bearing piles.” J. Geotech. Engrg., ASCE, 108, 555–569.
5.
Gazetas, G. (1984). “Seismic response of end‐bearing piles.” Int. J. Soil Dynamics Earthquakes Engrg., 3(2), 82–93.
6.
Kausel, E. (1981). “An explicit solution for the Green functions for dynamic loads in layered media.” Research Report, Dept. of Civil Engrg., MIT, Cambridge, Mass.
7.
Kaynia, A. M., and Kausel, E. (1982). “Dynamic stiffnesses and seismic response of pile groups.” Research Report, Dept. of Civ. Engrg., MIT, Cambridge, Mass.
8.
Luco, J. E., and Wong, H. L. (1986). “Response of a rigid foundation to a spatially random ground motion.” Earthquake Engrg. and Struct. Dynamics, 14, 891–908.
9.
Makris, N., and Gazetas, G. (1993). “Dynamic pile‐soil‐pile interaction II: Lateral and seismic response.” Earthquake Engrg. and Struct. Dynamics, 22(2) (in press).
10.
Novak, M. (1991). “Piles under dynamic loads.” Proc. 2nd Int. Conjerence on Recent Advances in Geotech. Earthquake Engrg. and Soil Dynamics, III, Univ. of Mis‐souri‐Rolla.
11.
Pais, A., and Kausel, E. (1985). “Stochastic response of foundations.” Research Report R85‐6, MIT, Cambridge, Mass.
12.
Roesset, J. M. (1977). “Soil amplification of earthquakes,” Numerical Methods in Geotechnical Engineering, C. S. Desai, and J. T. Christian, eds., McGraw‐Hill.
13.
Scanlan, R. H. (1976). “Seismic wave effects on soil‐structure interaction.” Earthquake Engrg. Struct. Dynamics, 4, 379–388.
14.
Tazoh, T., Wakahara, T., and Shimizu, K. “Effective motion of group pile foundation.” Proc. of 9th World Conference on Earthquake Engrg., III.
15.
Takemiya, H., and Yamada, Y. (1981). “Layered soil‐pile‐structure interaction.” Earthquake Engrg. Struct. Dyn., 9, 437–457.
16.
Veletsos, A. S., and Prasad A. M. (1988). “Seismic interaction of structures and soils: Stochastic approach.” Technical Report NCEER‐88‐0021, State Univ. of New York, Buffalo, N.Y.
17.
Wolf, J. P., and Von Arx, G. A. (1978). “Impedance function of a group of vertical piles.” Soil dynamics and earthquake engineering, ASCE, 2, 1024–1041.
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Published In
Journal of Geotechnical Engineering
Volume 117 • Issue 12 • December 1991
Pages: 1860 - 1879
Copyright
Copyright © 1991 ASCE.
History
Published online: Dec 1, 1991
Published in print: Dec 1991
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