Hydrodynamic and Foundation Flexibility Effects in Earthquake Response of Arch Dams
Publication: Journal of Structural Engineering
Volume 112, Issue 8
Abstract
The dynamic responses of Morrow Point Dam to Taft ground motion are presented under various assumptions for the impounded water and foundation rock for a range of properties of the alluvium and sediments at the reservoir boundary. Study of these response results demonstrates that the earthquake response of arch dams is increased by dam‐water interaction and decreased by reservoir boundary absorption, with these effects being more significant in the response of arch dams compared to gravity dams. It is also shown that the magnitudes of these effects depend significantly on the component of ground motion, and that the assumption of a rigid, nonabsorptive reservoir boundary leads to unrealistically large response for dams with impounded water, particularly due to vertical ground motion.
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References
1.
Fenves, G., and Chopra, A. K., “Earthquake Analysis and Response of Concrete Gravity Dams,” Report No. UCB/EERC‐84/10, Earthquake Engineering Research Center, Univ. of California, Berkeley, Calif., Aug., 1984.
2.
Fenves, G., and Chopra, A. K., “Reservoir Bottom Absorption Effects in Earthquake Response of Concrete Gravity Dams,” Journal of the Structural Division, ASCE, Vol. 111, No. ST3, Mar., 1985, pp. 545–562.
3.
Fok, K. L., and Chopra, A. K., “Earthquake Analysis and Response of Concrete Arch Dams,” Report No. UCB/EERC‐85/07, Earthquake Engineering Research Center, Univ. of California, Berkeley, Calif., July, 1985.
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6.
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7.
Porter, C. S., and Chopra, A. K., “Hydrodynamic Effects in Dynamic Response of Simple Arch Dams,” Earthquake Engineering and Structural Dynamics, Vol. 10, No. 3, May–June, 1982, pp. 417–431.
8.
Priscu, R., Popovici, A., Hie, L., and Stematiu, D., “New Aspects in the Earthquake Analysis of Arch Dams,” Criteria and Assumptions for Numerical Analysis of Dams, D. N. Naylor, et al., Eds., Proceedings of an International Symposium, Swansea, United Kingdom, Sept., 1975, pp. 709–725.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 112 • Issue 8 • August 1986
Pages: 1810 - 1828
Copyright
Copyright © 1986 ASCE.
History
Published online: Aug 1, 1986
Published in print: Aug 1986
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