Modeling and Simulation of Spatially Correlated Ground Motions at Multiple Onshore and Offshore Sites

Chao Li, Hong Hao, Hongnan Li, Kaiming Bi, Baokui Chen

Research output: Journal article publicationJournal articleAcademic researchpeer-review

60 Citations (Scopus)

Abstract

A simulation method of spatially correlated seafloor motions is proposed by considering the influences of seawater on the seafloor motions and their spatial variations at different subsea sites. The offshore site transfer functions are theoretically derived using the fundamental hydrodynamics and one-dimensional wave propagation theory. Three-dimensional spatially varying ground motions on the surfaces of multiple onshore and offshore sites are synthesized based on the spectral representation method and the calculated site transfer functions. A pair of onshore and seafloor recordings from the same earthquake event is employed to examine the basic characteristics of simulated onshore and seafloor motions.

Original languageEnglish
Pages (from-to)359-383
Number of pages25
JournalJournal of Earthquake Engineering
Volume21
Issue number3
DOIs
Publication statusPublished - 3 Apr 2017
Externally publishedYes

Keywords

  • Ground Motion Spatial Variations
  • Seafloor Seismic Motions
  • Seawater Layer
  • Transfer Functions
  • Wave Propagation Theory

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Geotechnical Engineering and Engineering Geology

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