Effect of Soil Flow Changes on Structure Loads
Publication: Journal of Structural Engineering
Volume 126, Issue 12
Abstract
Current methods of analyzing the response of buried structures to ground shock loads consider the effects of structure response on structure loads, but do not consider the effects of structure motion on the soil flow near the structure and subsequent changes in the structure loads and response. Analyses of the effects of these soil flow changes for a high explosive detonation very close to a structure have not been reported until now. In this paper, dynamic finite-element analyses, including the detonation of high explosives in the soil, are used to determine the changes in soil flow and structure loads. These analyses demonstrate that the soil flow near the structure changes significantly due to structure motion, and neglecting these changes in flow causes the underprediction of late-time loads and structure response.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Baylot, J. T. ( 1993). “Loads on structures in low shear-strength soils subjected to localized blast effects.” PhD thesis, University of Illinois, Champaign, Ill.
2.
Biggs, J. M. ( 1964). Introduction to structural dynamics, McGraw-Hill, New York.
3.
Hayes, P. G. ( 1989). “Backfill effects on the response of buried reinforced concrete slabs.” Tech. Rep. SL-89-18, U.S. Army Engineer Waterways Experiment Station, Vicksburg, Miss.
4.
Newmark, N. W. (1959). “A method of computation for structural dynamics.”J. Engrg. Mech., ASCE, 85(3), 67–94.
5.
Pelessone, D. ( 1989). “A modified formulation of the cap model.” General Atomics Draft Rep. GA-C19579, General Atomics, San Diego.
6.
Sandler, I. S., and Rubin, D. ( 1979). “An algorithm and modular subroutine for the cap model.” Int. J. Numer. and Analyt. Methods in Geomech., 3, 173–186.
7.
U.S. Army. ( 1986). “Fundamentals of protective design for conventional weapons.” Army Tech. Manual TM-5-855-1, Washington, D.C.
8.
Weidlinger, P., and Hinman, E. (1991). “Cavitation in solid medium.”J. Engrg. Mech.., ASCE, 117(1), 166–183.
9.
Whirley, R. G., and Engelmann, B. E. ( 1993). “DYNA3D: a nonlinear, explicit, three-dimensional finite element code for solid and structural mechanics- user manual.” Rep. UCRL-MA-107254, Rev. 1, Lawrence Livermore Nat. Lab., University of California, Berkeley, Calif.
Information & Authors
Information
Published In
History
Received: Apr 16, 1997
Published online: Dec 1, 2000
Published in print: Dec 2000
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.