NEHRP Clearinghouse

Title
Time and Frequency Domain Analyses of Three Dimensional Ground Motions San Fernando Earthquake.
File
PB260556.pdf
Author(s)
Kubo, T.; Penzien, J.
Source
National Science Foundation, Washington, D.C., March 1976, 237 p.
Identifying Number(s)
EERC-76-6
Abstract
Principal directions and components are generated for the strong ground motions recorded during the San Fernando earthquake of February 9, 1971. Characteristics of the principal components are investigated using the moving-window technique applied in both the time and frequency domains. A nonstationary random process is defined reflecting these same characteristics in a statistical sense. A computer program for generating principal directions and components of motion, wave-form characteristics, and sample accelerograms from the nonstationary random process is listed.
Keywords
Ground motion; Computer programs; Earthquake engineering; Time; Frequencies; Earthquakes; Random processes; Accelerograms; Earth movements; California; Domains; San Fernando earthquake