MODE IDENTIFICATION OF AN ARCH DAM BY A DYNAMIC AIR-GUN TEST.
By: Hsi-Ping Liu, Joseph J. Fedock, and Jon B. Fletcher
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Abstract
Thirteen natural frequencies of a concrete arch dam (Monticello Dam near Sacramento, California) have been identified by using a dynamic testing method which employs an air gun firing in the reservoir as the excitation source. These vibrations modes are determined from the peak responses in the Fourier amplitude spectra of the free-vibration data recorded at three crest locations using three-component geophones. Comparisons of the first five natural frequencies with results obtained by forced vibration tests using rotating mass shakers show good agreement. The next eight higher-frequency modes, not previously identified, are determined from data of the present tests.
Suggested Citation
Liu, H., Fedock, J.J., Fletcher, J.B., 1986, MODE IDENTIFICATION OF AN ARCH DAM BY A DYNAMIC AIR-GUN TEST., Proceedings of the Third U. S. National Conference on Earthquake Engineering., Charleston, SC, USA, p. 753-764.
| Publication type | Conference Paper |
|---|---|
| Publication Subtype | Conference Paper |
| Title | MODE IDENTIFICATION OF AN ARCH DAM BY A DYNAMIC AIR-GUN TEST. |
| ISBN | 0943198070 |
| Year Published | 1986 |
| Language | English |
| Publisher | Earthquake Engineering Research Inst |
| Publisher location | El Cerrito, CA, USA |
| First page | 753 |
| Last page | 764 |
| Conference Title | Proceedings of the Third U. S. National Conference on Earthquake Engineering. |
| Conference Location | Charleston, SC, USA |