Empirical correlations between cumulative absolute velocity and amplitude-based ground motion intensity measures (2012)
Type of ContentJournal Article
PublisherUniversity of Canterbury. Civil and Natural Resources Engineering
Empirical correlation equations are developed between cumulative absolute velocity (CAV) and other common ground motion intensity measures, namely, peak ground acceleration (PGA), peak ground velocity (PGV), 5% damped pseudo spectral acceleration (SA), acceleration spectrum intensity (ASI), spectrum intensity (SI), and displacement spectrum intensity (DSI). It is found that, for a given earthquake rupture, CAV has the strongest correlation with high and moderate frequency intensity measures (IMs), i.e. ASI, PGA, PGV and high-frequency SA, and to a lesser extent with low frequency IMs (DSI and low-frequency SA). The largest positive correlations of approximately 0.7 however are not high in an absolute sense, a result of the cumulative nature of CAV. The equations allow estimation of the joint distribution of these intensity measures for a given earthquake rupture, enabling the inclusion of CAV, and its benefit as a cumulative intensity measure, in seismic hazard analysis, ground motion selection, and seismic response analysis.
CitationBradley, B.A. (2012) Empirical correlations between cumulative absolute velocity and amplitude-based ground motion intensity measures. Earthquake Spectra, 28(1), pp. 17-35.
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Keywordsearthquake engineering; seismology
ANZSRC Fields of Research40 - Engineering::4005 - Civil engineering::400506 - Earthquake engineering
40 - Engineering::4005 - Civil engineering::400510 - Structural engineering
37 - Earth sciences::3706 - Geophysics::370609 - Seismology and seismic exploration
RightsCopyright (2012) Earthquake Engineering Research Institute. This article may be downloaded for personal use only. Any other use requires prior permission of the Earthquake Engineering Research Institute
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Empirical Correlations between Cumulative Absolute Velocity and Amplitude-Based Ground Motion Intensity Measures Bradley, Brendon (University of Canterbury. Civil and Natural Resources Engineering, 2012)Empirical correlation equations are developed between cumulative absolute velocity (CAV) and other common ground motion intensity measures, namely, peak ground acceleration (PGA), peak ground velocity (PGV), 5% damped ...
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