Ground-Motion Suite Selection for Eastern North America
Publication: Journal of Structural Engineering
Volume 137, Issue 3
Abstract
Ground-motion suite selection for Eastern North America (ENA) is distinguished from suite selection for high seismic regions by uncertainty related to earthquake intensity, spectral shape, and the wide range of relevant periods experienced by low-ductility structures. Whereas trends in high seismic regions point toward developing smaller, more efficient suites for use in practice based on reliable intensity parameters, current research on moderate seismic regions requires the development of ground-motion suites capable of exciting the widest range of structural periods while accounting for uncertainty related to ground-motion intensity. This paper discusses uncertainty related to ENA ground motions in terms of the logic tree in the probabilistic seismic hazard analysis (epistemic uncertainty) and the deaggregation of hazard into magnitude and distance bins (aleatory uncertainty), recommends a suite selection process for addressing this uncertainty without amplitude scaling, and evaluates the effectiveness of a specific suite in the context of reliability-based performance assessment procedures.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 137 • Issue 3 • March 2011
Pages: 358 - 366
Copyright
© 2011 American Society of Civil Engineers.
History
Received: Jun 10, 2008
Accepted: May 2, 2010
Published online: May 27, 2010
Published in print: Mar 1, 2011
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