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Site-Specific Design Spectra for Vertical Ground Motion
Date
2011-11-01
Author
Gülerce, Zeynep
Metadata
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This paper contains ground-motion prediction equations (GMPEs) for the vertical-to-horizontal spectral acceleration (V/H) ratio, and the methods for constructing vertical design spectra that are consistent with the probabilistic seismic hazard assessment results for the horizontal ground motion component. The GMPEs for V/H ratio consistent with the horizontal GMPE of Abrahamson and Silva (2008) are derived using the Pacific Earthquake Engineering Research Center's Next Generation of Ground-Motion Attenuation Models (PEER-NGA) database (Chiou et al. 2008). The proposed V/H ratio GMPE is dependent on the earthquake magnitude and distance, consistent with previous models, but it differs from previous studies in that it accounts for the differences in the nonlinear site-response effects on the horizontal and vertical components. This difference in nonlinear effects results in large V/H ratios at short spectral periods for soil sites located close to large earthquakes. A method to develop vertical design spectra dependent on the horizontal component uniform hazard spectrum that accounts for the correlation between the variability of the horizontal ground-motion model and the variability of the V/H ratio ground-motion model is proposed. [DOI: 10.1193/1.3651317]
Subject Keywords
Geotechnical Engineering and Engineering Geology
,
Geophysics
URI
https://hdl.handle.net/11511/43050
Journal
EARTHQUAKE SPECTRA
DOI
https://doi.org/10.1193/1.3651317
Collections
Department of Civil Engineering, Article
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Z. Gülerce, “Site-Specific Design Spectra for Vertical Ground Motion,”
EARTHQUAKE SPECTRA
, pp. 1023–1047, 2011, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/43050.