Sensitivity of site response analysis on the number of ground motion records and implications for PSHA
File(s)
Accepted version
Author(s)
Papaspiliou, M
Kontoe, S
Type
Journal Article
Abstract
This paper investigates issues related to the number of ground-motion records required for the performance of site response analysis and the inclusion of the site-specific amplification function within probabilistic seismic hazard calculations (PSHA). It explores the minimum number of records required for a robust estimation of the median and standard deviation of the site amplification function, as well as the impact of the selected ground-motion suites on the results of PSHA. Site response analyses are performed using both equivalent linear and nonlinear methodologies. Although the median amplification was observed to be relatively easy to capture, the standard deviation was seen to fluctuate considerably, especially when suites of few records were used. It was observed that in the case of the nonlinear site response analysis 10 records provide relatively stable estimates of the hazard curves for the majority of periods, while in the case of the equivalent linear analysis 20 records or more are required to achieve a similar level of accuracy.
Date Issued
2013-05-19
Citation
Bulletin of Earthquake Engineering, 2013, available online
ISSN
1573-1456
Publisher
SPRINGER
Start Page
1287
End Page
1304
Journal / Book Title
Bulletin of Earthquake Engineering
Volume
available online
Issue
5
Copyright Statement
© Springer Science+Business Media Dordrecht 2013. The final publication is available at link.springer.com
Description
10.11.14 KB. Ok to add accepted version to spiral, 12 month embargo expired.
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=000324266300003&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Site response
ground-motion selection
PSHA
Publication Status
Published