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Novel nonparametric modeling of seismic attenuation and directivity relationship
Ka-Veng Yuen; Gilberto A. Ortiz; Ke Huang
2016-09-28
Source PublicationComputer Methods in Applied Mechanics and Engineering
ISSN0045-7825
Volume311Pages:537-555
Abstract

Seismic attenuation modeling is a core element in earthquake disaster assessment and earthquake early warning. In this paper, a novel nonparametric methodology, namely Bayesian Nonparametric General Regression (BNGR), is introduced for the modeling of peak ground acceleration attenuation relationship. In contrast to most existing methods, this method does not require a prescribed functional form of the attenuation relationship. Furthermore, it selects the proper set of variables necessary to model this relationship. Moreover, the proposed model does not only consider the epicentral distance but also the location of the measured station so it allows for the modeling of the attenuation directivity. The proposed method is demonstrated with a case study using a comprehensive database of ground motion records at 271 monitoring stations for the 2008 Ms 8.0 Wenchuan earthquake. Results show that the proposed methodology is capable to represent the seismic attenuation relationship. Furthermore, the contour plots of the peak ground acceleration provides valuable information for the study of the earthquake directivity characteristics.

KeywordBayesian Inference General Regression Model Selection Nonparametric Regression Peak Ground Acceleration Seismic Attenuation
DOI10.1016/j.cma.2016.09.004
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaEngineering ; Mathematics ; Mechanics
WOS SubjectEngineering, Multidisciplinary ; Mathematics, Interdisciplinary Applications ; Mechanics
WOS IDWOS:000387520000023
PublisherELSEVIER SCIENCE SA, PO BOX 564, 1001 LAUSANNE, SWITZERLAND
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Cited Times [WOS]:17   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionFaculty of Science and Technology
Corresponding AuthorKa-Veng Yuen
AffiliationDepartment of Civil and Environmental Engineering, University of Macau, 999078, Macao, China
First Author AffilicationUniversity of Macau
Corresponding Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
Ka-Veng Yuen,Gilberto A. Ortiz,Ke Huang. Novel nonparametric modeling of seismic attenuation and directivity relationship[J]. Computer Methods in Applied Mechanics and Engineering,2016,311:537-555.
APA Ka-Veng Yuen,Gilberto A. Ortiz,&Ke Huang.(2016).Novel nonparametric modeling of seismic attenuation and directivity relationship.Computer Methods in Applied Mechanics and Engineering,311,537-555.
MLA Ka-Veng Yuen,et al."Novel nonparametric modeling of seismic attenuation and directivity relationship".Computer Methods in Applied Mechanics and Engineering 311(2016):537-555.
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