Correlation of spectral acceleration values of vertical and horizontal ground motion pairs. Issue 4 (November 2020)

• Record Type: Journal Article
• Authors: Kohrangi, Mohsen; Papadopoulos, Athanasios N; Bazzurro, Paolo; Vamvatsikos, Dimitrios
• Is Part Of: Earthquake spectra. Volume 36:Issue 4(2020)
• Page Start: 2112
• Page End: 2128
• Publication Date: 2020-11
• Subjects: Vertical component -- correlation coefficient -- NGA-West2 -- spectral acceleration -- ground motion duration -- peak ground velocity; Earthquake engineering -- Periodicals; Earthquake engineering; Periodicals; 624.1762
• DOI: 10.1177/8755293020919416
• Languages: English
• ISSNs: 8755-2930

Abstract

We present correlation coefficient estimates between a number of ground motion intensity measures ( IM s), as measured from the NGA-West2 database, with focus on the correlation of vertical–vertical and vertical–horizontal ground motion components. The IM s considered include spectral accelerations with periods from 0.01 to 10 s, peak ground acceleration, peak ground velocity, and significant duration (for 5%–75% and 5%–95% definitions). To facilitate their use, parametric equations are also fitted to the correlation models. Finally, the dependence of the obtained correlation coefficients to magnitude, distance, and Vs 30 is evaluated.