Rocking Impedance of Embedded Strip Foundations in Layered Soil
Publication: Journal of Geotechnical Engineering
Volume 118, Issue 5
Abstract
This paper presents a detailed investigation of the influence of key mechanical and geometrical parameters on the rocking impedance of rigid strip foundations embedded in layered soil. Geometrical parameters include the depth of embedment, the thickness of the top soil layer, and the degree of contact of foundation sidewalls with surrounding backfill soil. The influence of the relative shear wave velocities of the layers for a two‐layered soil profile is also investigated. The results are presented in the form of simple and versatile dimensionless graphs. This investigation is conducted using an advanced algorithm of the boundary element method incorporating isoparametric boundary elements. Higher order quadratic elements are used since they can model accurately the wavy nature of the dynamic problem.
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References
1.
Ahmad, S. (1988). “Dynamic stress analysis of a class of geomechanics problems by BEM.,” Int. J. Numer. Anal. Methods Geomech., 12(4), 401–417.
2.
Ahmad, S., and Banerjee, P. K. (1988). “Multi‐domain BEM for two dimensional problems in elastodynamics.” Int. J. Numer. Methods Engrg., 26(4), 891–911.
3.
Cruse, T. A., and Rizzo, F. J. (1968). “A direct formulation and numerical solution of the general transient elastodynamic problem—I.” J. Math. Anal. Appl., 22, 244–259.
4.
Dominguez, J. (1978). “Dynamic Stiffness of rectangular foundation.” Report No. R78‐20, Dept. of Civil Engrg., MIT, Cambridge, Mass.
5.
Gazetas, G., and Dobry, R. (1984). “Simple radiation damping model for piles and footings.” J. Engrg. Mech., ASCE, 110(6), 937–956.
6.
Gazetas, G., and Roesset, J. M. (1976). “Forced vibrations of strip footing on layered soils.” Proc., Methods Struct. Analysis, 1, ASCE, New York, N.Y., 115–131.
7.
Hatzikonstantinou, E., Tsssoulas, J. L., Gazetas, G., Kotsanopoulos, P., and Fotopoulou, M. (1989). “Rocking stiffness of arbitrarily shaped foundations.” J. Geotech. Engrg., ASCE, 115(4), 457–471.
8.
Karasudhi, P., Keer, L. M., and Lee, S. L. (1968). “Vibratory motion of a body on an elastic half plane.” J. Appl. Mech., ASME, 35(4), 697–705.
9.
Kobayashi, S., and Nishimura, N. (1983). “Analysis of dynamic soil‐structure interaction by boundary integral equation method.” Proc. 3rd Int. Symp. on Numerical Methods in Engineering, Pluralis Publication, Paris, France. 353–362.
10.
Luco, J. E., and Westmann, R. A. (1972). “Dynamic response of a rigid footing bonded to an elastic half‐space.” J. Appl. Mech., ASME, 39(2), 527–534.
11.
Rajapakse, R. K. N. D., and Shah, A. H. (1988). “Impedances of embedded rigid strip foundations.” J. Earthquake Engrg. Struct. Dyn., 16, 255–273.
12.
Von Estorff, O., and Schmid, G. (1984). “Application of the boundary element method to the analysis of the vibration behavior of strip foundations on a soil layer.” Proc., Int. Symp. on Dynamic Soil‐Structure Interaction, A. A. Balkema Publ., Rotterdam, Netherlands, 11–17.
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Published In
Journal of Geotechnical Engineering
Volume 118 • Issue 5 • May 1992
Pages: 796 - 813
Copyright
Copyright © 1992 ASCE.
History
Published online: May 1, 1992
Published in print: May 1992
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