Dynamic Interaction Factors for Floating Pile Groups
Publication: Journal of Geotechnical Engineering
Volume 117, Issue 10
Abstract
A comprehensive set of dimensionless graphs of complex‐valued dynamic interaction factors versus frequency is presented for vertical, horizontal, and rocking harmonic excitation at the head of each pile. These readily applicable graphs have been developed with a rigorous analytical‐numerical formulation for two idealized soil profiles (a homogeneous half‐space and a half‐space with modulus proportional to depth) and three pile separation distances (3, 5, and 10 pile‐diamcters). A wide range of values has been parametrically assigned to pile slendcrncss and pile‐to‐soil stiffness ratios. The results are discussed at length to gain valuable insight into the nature of dynamic pile‐soil‐pile interaction. Gcotcchnical and earthquake engineers can use the presented graphs exactly as they use the classical interaction factors for static deformation analysis of pile groups.
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References
1.
Butterfield, R., and Banerjee, P. K. (1971). “The elastic analysis of compressible piles and pile groups.” Geotechnique, 21(1), 43–60.
2.
Dobry, R., and Gazetas, G. (1988). “Simple method for dynamic stiffness and damping of floating pile groups.” Geotechnique, 38(4), 557–574.
3.
Gazetas, G. (1991). “Foundation vibrations.” Foundation engineering handbook, 2nd Ed., Y. Fang, ed., Van Nostrand Reinhold Co., New York, N.Y., 553–593.
4.
Gazetas, G., and Dobry, R. (1984). “Horizontal response of piles in layered soils.” J. Geotech. Engng., ASCE, 110(1), 20–40.
5.
Gazetas, G., and Makris, N. (1991). “Dynamic pile‐soil‐pile interaction. I: Analysis of axial vibration.” Earthquake Engrg. Struct. Dyn., 20(2), 115–132.
6.
Kagawa, T. (1983). “Dynamic lateral pile group effects.” J. Geotech. Engng., ASCE, 109, 1267–1285.
7.
Kaynia, A. M., and Kausel, E. (1982). “Dynamic stiffnesses and seismic response of pile groups.” Research Report, Dept. of Civil Engineering, MIT, Cambridge, Mass.
8.
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.
9.
Nogami, T. (1983). “Dynamic group effect in axial responses of grouped piles.” J. Geotech. Engng. Div., ASCE, 109, 225–243.
10.
Poulos, H. G. (1968). “Analysis of the settlement of pile groups.” Geotechnique, 18(4), 449–471.
11.
Poulos, H. G. (1971). “Behavior of laterally loaded piles. II: Pile groups.” J. Soil Mech. Found. Engrg. Div., ASCE, 97(5), 773–751.
12.
Poulos, H. G., and Davis, E. H. (1980). Pile foundation analysis and design. Wiley, New York, N.Y.
13.
Randolph, M. F. (1977). “A theoretical study of the performance of piles.” thesis presented to Cambridge University, at Cambridge, England, in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
14.
Randolph, M. F., and Wroth, C. P. (1979). “An analysis of the vertical deformation of pile groups.” Geotechnique, 29(4), 423–439.
15.
Roesset, J. M. (1984). “Dynamic stiffness of pile groups.” Pile foundations, ASCE, New York, N.Y., 263–286.
16.
Sheta, M., and Novak, M. (1982). “Vertical vibration of pile groups.” J. Geotech. Engng. Div., ASCE, 108, 570–590.
17.
Tyson, T. R., and Kausel, E. (1983). “Dynamic analysis of axisymmetric pile groups.” Research Report, Dept. of Civil Engrg., MIT, Cambridge, Mass.
18.
Waas, G., and Hartmann, H. G. (1981). “Analysis of pile foundations under dynamic loads.” Conf. of Struct. Mech. in Reactor Tech., Paris, France.
19.
Wolf, J. P., and Von Arx, G. A. (1978). “Impedance function of a group of verticalpiles.” Soil dynamics and Earthquake Engineering, ASCE, New York, N.Y., Vol. 2, 1024–1041.
Information & Authors
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Published In
Journal of Geotechnical Engineering
Volume 117 • Issue 10 • October 1991
Pages: 1531 - 1548
Copyright
Copyright © 1991 ASCE.
History
Published online: Oct 1, 1991
Published in print: Oct 1991
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