Joint Occurrence of Spectral Accelerations Between Horizontal and Vertical Ground Motions

Xiaolei Wang, Zixu Zhao, Weidong Yan, Dagang Lu, Hui Kong*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

This paper estimates the joint occurrence of spectral accelerations (SA) between horizontal (HGM) and vertical ground motions (VGM) based on the NGA-West2 ground motion database, which includes the correlation model and joint distribution model. In this study, the correlation model calculated via CB14 horizontal ground motion prediction equation (GMPE) and BC16 vertical GMPE is obtained. It is verified that the joint distribution of residuals follows a multivariate normal distribution via both a set of quantitative validation methods and a qualitative validation method. Conditional mean spectra of VGMs conditioned on SAs of HGMs are studied as an application of joint occurrence of SA V–SA H.

Original languageEnglish
Pages (from-to)532-548
Number of pages17
JournalJournal of Earthquake Engineering
Volume28
Issue number2
DOIs
Publication statusPublished - 2024

Keywords

  • Statistical tests
  • conditional mean spectra
  • correlation model
  • joint distribution model
  • vertical ground motions

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Wang, X., Zhao, Z., Yan, W., Lu, D., & Kong, H. (2024). Joint Occurrence of Spectral Accelerations Between Horizontal and Vertical Ground Motions. Journal of Earthquake Engineering, 28(2), 532-548. https://doi.org/10.1080/13632469.2023.2217453