Research Article
Apr 1978
Seismic Ground Motion Parameter Relations
Publication: Journal of the Geotechnical Engineering Division
Volume 104, Issue 4
Abstract
The relationships among spectral velocity for 0.5 hz and 1.0 hz frequencies, peak ground acceleration, and peak ground velocity of earthquake-induced ground motion are investigated using the horizontal components of motion from 70 California strong-motion records and accounting for event size, source-to-site distance, and geologic conditions at the recording site. These strong motion records indicate that the estimation of intermediate-frequency spectral response using ground acceleration and typical design spectra is unconservative for a large, distant event (magnitude-8+, 120-km epicentral distance) by a factor of about 2 to 6, depending on the site geology. Ground velocity can be used to estimate intermediate frequency spectral response; however, expected spectral response will exceed these estimates during the motion from large, distant events by a factor of about 1.4 to 2.5. Because of the large variabilities associated with strong motion data, these results are tentative.
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Published In
Journal of the Geotechnical Engineering Division
Volume 104 • Issue 4 • April 1978
Pages: 481 - 490
Copyright
© 1978 American Society of Civil Engineers.
History
Published in print: Apr 1978
Published online: Feb 11, 2021
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Authors
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Robin K. McGuire, AM.ASCE
Research Struct. Engr., U.S. Geological Survey, Denver, Colo
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