Spectrum analysis of strong-motion earthquakes
- Creators
- Housner, G. W.
- Martel, R. R.
- Alford, J. L.
Abstract
The problem of the dynamic response of a structure to earthquake ground motion has been formulated in a manner which permits separation of the characteristics of particular structures from the characteristics of the earthquake. The expression involving the characteristics of the earthquake is defined as the "spectrum" of the earthquake and it is shown that the spectrum is a plot of the maximum response of a simple oscillator versus the period of the oscillator. Eighty-eight such spectra were computed by means of an electric analog computer and are presented in this paper. It is found that damping is a very important parameter in the over-all problem; relatively small amounts of damping reduce the structural response sharply. Further research on damping in buildings is recommended, and it is also proposed that the spectrum be used as a quantitative measure of earthquake intensity.
Additional Information
Copyright © 1953, by the Seismological Society of America. Manuscript received for publication March 8, 1952. The work described in this paper was done at the California Institute of Technology, under a contract with the Office of Naval Research. The accelerograms used in the study were especially prepared for this project by the U. S. Coast and Geodetic Survey.Attached Files
Published - 97.full.pdf
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Additional details
- Eprint ID
- 48032
- Resolver ID
- CaltechAUTHORS:20140805-165113746
- Office of Naval Research (ONR)
- Created
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2014-08-06Created from EPrint's datestamp field
- Updated
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2019-10-03Created from EPrint's last_modified field