Seismic Evaluation of Pile-Founded Highway Bridge on Saturated Peat
Publication: Journal of Structural Engineering
Volume 124, Issue 1
Abstract
Interstate 90 crosses Mercer Slough near Bellevue, Washington. Mercer Slough is filled with a very soft, thick peat deposit. Very little is currently known about the dynamic behavior of such soils or the seismic response of bridges supported on peaty soils. In this study, the seismic response of the westbound structure of the I-90 bridges crossing Mercer Slough was investigated. Both linear spectral and nonlinear dynamic analyses were performed. For the spectral analysis, two different column and three different foundation stiffness values were used, along with two different earthquake spectra. For the nonlinear analyses, soil-structure interaction and inelastic column behavior were included. Equivalent Winkler-type pile foundation models were used with two different conditions of fixity at the pile cap. In addition, earthquake acceleration time-histories that included the effects of the soil motion were used. The response of the bridge from the nonlinear analysis was found to be similar to that from the spectral analyses, but the response was found to depend significantly on the foundation assumptions.
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References
1.
Board of inquiry. (1990). “Competing against time.” C. C. Thiel, ed., Office of Plng. and Res., Calif., May, 264. Bridge design specifications manual. (1989). American Association of State Highway and Transportation Officials (AASHTO), Washington, D.C.
2.
Cofer, W. F., McLean, D. I., and McGuire, J. W. (1994). “Analytical modeling of foundations for seismic analysis of bridges.” Washington State Dept. of Transp. Final Tech. Rep., Report No. WA-RD 328.1, 339.
3.
Crouse, C. B., Kramer, S. L., Mitchell, R., and Hushmand, B.(1993). “Dynamic tests of pipe pile in saturated peat.”J. Geotech. Engrg., ASCE, 119(10), 1550–1567.
4.
Kramer, S. L. (1991). “Behavior of piles in full-scale, field lateral loading tests.” Washington State Transp. Ctr., Seattle, Wash., Oct., 79.
5.
Kramer, S. L. (1992). “Seismic response—foundations in soft soils.” Draft Rep. for Washington State Transp. Ctr., Seattle, Wash., July, 185.
6.
Lam, I. P., and Martin, G. R. (1984). “Seismic design for highway bridge foundations.”Proc., Lifeline Earthquake Engrg., ASCE, New York, N.Y., 7–21.
7.
McGuire, J. W., Cofer, W. F., Marsh, M. L., and McLean, D. I. (1994). “Analytical modeling of spread footing foundations for seismic analysis of bridges.”Transp. Res. Rec. No. 1447, National Res. Council, 80–92.
8.
McLean, D. I., and Cannon, I. B. S. (1994). “Seismic analysis of the westbound lanes of the I-90 bridges crossing Mercer Slough.” Washington State Dept. of Transp. Final Tech. Rep., Report No. WA-RD 299.1, 122.
9.
Nogami, T., and Konagai, K.(1988). “Time domain flexural response of dynamically loaded single piles.”J. Engrg. Mech., ASCE, 114(9), 1512–1525.
10.
Nogami, T., Otani, J., Konagai, K., and Chen, H. L.(1992). “Nonlinear soil-pile interaction model for dynamic lateral motion.”J. Geotech. Engrg., ASCE, 118(1), 89–106.
11.
Penzien, J., Imbsen, R. A., and Liu, W. D. (1981). NEABS (nonlinear earthquake analysis of bridge systems). Computer Program Source Code and Users Manual, Nat. Information Service for Earthquake Engineering, EERC, Univ. of California, Berkeley, Calif.
12.
Priestley, M. J. N. (1991). “Seismic assessment of existing concrete bridges.”Seismic assessment and retrofit of bridges, SSRP 91/03, 84–149.
13.
Richart, F. E., Hall, J. R., and Woods, R. D. (1970). Vibrations of soils and foundations. Prentice-Hall, Inc., Englewood Cliffs, N.J.
14.
Scott, R. F. (1989). “Assessment of existing bridges—foundation assessment.” California Inst. of Tech., Pasadena, Calif. SEISAB-I. (1990). Imbsen and Assoc., Inc., Sacramento, Calif.
15.
Seismic Design Guidelines for Highway Bridges. (1981). Rep. ATC-6, Appl. Tech. Council.
16.
Tsiatas, G., Fragaszy, R., Ho, C., and Kornher, K. (1989). “Design response spectra for Washington State bridges,” Dept. of Civ. Engrg., Washington State Univ., Pullman, Wash., May.
17.
Wolf, J. P. (1985). Dynamic soil-structure interaction. Prentice-Hall, Inc., Englewood Cliffs, N.J.
18.
Wolf, J. P. (1988). Soil-structure interaction analysis in time domain. Prentice-Hall, Inc., Englewood Cliffs, N.J.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 124 • Issue 1 • January 1998
Pages: 71 - 79
Copyright
Copyright © 1998 American Society of Civil Engineers.
History
Published online: Jan 1, 1998
Published in print: Jan 1998
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