Vector-Valued Uniform Hazard Spectra
- 1 November 2012
- journal article
- Published by SAGE Publications in Earthquake Spectra
- Vol. 28 (4), 1549-1568
- https://doi.org/10.1193/1.4000081
Abstract
Uniform hazard spectra (UHS) have been used as design earthquakes in several design codes. However, as the results from scalar probabilistic seismic hazard analysis (PSHA), UHS do not provide knowledge about the simultaneous occurrence of spectral accelerations at multiple vibration periods. The concept of a single “design earthquake” is then lost on a UHS. In this study, a vector-valued PSHA combined with scalar PSHA is applied to establish an alternative design spectrum, named vector-valued UHS (VUHS). Vector-valued seismic hazard deaggregation (SHD) is also performed to determine the design earthquake in terms of magnitude, distance, and occurrence rate for the VUHS. The proposed VUHS preserves the essence of the UHS and can also be interpreted as a single design earthquake. To simplify the procedure for generating the VUHS, so that they can be easily incorporated into performance-based seismic design, an approximate method is also developed.Keywords
This publication has 15 references indexed in Scilit:
- Conditional Mean Spectrum: Tool for Ground-Motion SelectionJournal of Structural Engineering, 2011
- Statistical Tests of the Joint Distribution of Spectral Acceleration ValuesBulletin of the Seismological Society of America, 2008
- Correlation of Spectral Acceleration Values from NGA Ground Motion ModelsEarthquake Spectra, 2008
- Typical uniform hazard spectra for eastern North American sites at low probability levelsCanadian Journal of Civil Engineering, 2007
- Spectral shape, epsilon and record selectionEarthquake Engineering & Structural Dynamics, 2006
- Correlation of Response Spectral Values for Multicomponent Ground MotionsBulletin of the Seismological Society of America, 2006
- Performance‐based seismic engineering: the need for a reliable conceptual comprehensive approachEarthquake Engineering & Structural Dynamics, 2001
- Application of uniform hazard spectra in seismic design of multistorey buildingsCanadian Journal of Civil Engineering, 2000
- Compatible ground-motion time histories for new national seismic hazard mapsCanadian Journal of Civil Engineering, 1998
- Empirical Response Spectral Attenuation Relations for Shallow Crustal EarthquakesSeismological Research Letters, 1997