Vibrational characteristics of an earth dam
| Author(s): |
W. O. Keightley
|
|---|---|
| Medium: | journal article |
| Language(s): | English |
| Published in: | Bulletin of the Seismological Society of America, 1 December 1966, n. 6, v. 56 |
| Page(s): | 1207-1226 |
| DOI: | 10.1785/bssa0560061207 |
| Abstract: |
An earth dam was excited into vibrations, in the upstream-downstream direction, by four rotating eccentric-mass vibration generators which were operated on the crest. Natural frequencies, mode shapes, and equivalent viscous modal damping constants of the dam were revealed by the forced vibrations. A theoretical analysis of the dam, based on consideration of shearing deformations only, shows moderately good agreement with the behavior which was observed at the lower frequencies. |
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