Correlation Analysis in Space‐Time Modeling of Strong Ground Motion
Publication: Journal of Engineering Mechanics
Volume 113, Issue 4
Abstract
The estimation of frequency-dependent correlation functions for pairs of accelerograms is important in the analysis and modeling of the space-time variation of earthquake ground motions. Two methods of estimating the frequency-dependent correlation functions, the conventional method and the ``moving window'' approach, are reviewed. It is shown that unless certain precautions are taken the moving window approach can sometimes yield estimates that are heavily biased and hence meaningless.
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References
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Bendat, J. S., and Piersol, A. G., Engineering Applications of Correlation and Spectral Analysis, John Wiley and Sons, Inc., New York, N.Y., 1980.
2.
Bolt, B. A., et al., “Earthquake Strong Motions Recorded by a Large Near‐Source Array of Digital Seismographs,” Earthquake Engineering and Structural Dynamics, 1982, Vol. 10, pp. 561–573.
3.
Harichandran, R. S., and Vanmarcke, E., “Stochastic Variation of Earthquake Ground Motion in Space and Time,” Journal of Engineering Mechanics, ASCE, Vol. 112, No. 2, 1986, pp. 154–174.
4.
Jenkins, G. M., and Watts, D. G., Spectral Analysis and Its Applications, Holden‐Day, San Francisco, Calif., 1969.
5.
Loh, C. H., and Penzien, J., “Identification of Wave Types, Directions and Velocities using SMART‐1 Strong Motion Array Data,” Proceedings of the Eighth World Conference on Earthquake Engineering, San Francisco, Calif., July, 1984, pp. 191–198.
6.
Loh, C. H., Penzien, J., and Tsai, Y. B., “Engineering Analysis of the SMART 1 Array Accelerograms,” Earthquake Engineering and Structural Dynamics, 1982, Vol. 10, pp. 575–591.
Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 113 • Issue 4 • April 1987
Pages: 629 - 634
Copyright
Copyright © 1987 ASCE.
History
Published online: Apr 1, 1987
Published in print: Apr 1987
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