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Stochastic differential ground motion

Zerva, A. / Shinozuka, M.

AbstractAn important consideration in the seismic analysis and design of lifeline systems is the differential motion between their supports, which may induce significant stresses and strains in the structure. Presented herein is an analytical model for describing spatial variations of ground motion and differential motions between stations. The results of the application of the model to the earthquake of January 29, 1981 at Lotung, Taiwan, compare well with the recorded data. The effect of random variability in the source parameters on the differential ground motion is also examined; the analysis suggests that randomness in the rise time and the rupture velocity increases the frequency content of the differential strong ground motion.

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Stochastic differential ground motion

Zerva, A. / Shinozuka, M.

AbstractAn important consideration in the seismic analysis and design of lifeline systems is the differential motion between their supports, which may induce significant stresses and strains in the structure. Presented herein is an analytical model for describing spatial variations of ground motion and differential motions between stations. The results of the application of the model to the earthquake of January 29, 1981 at Lotung, Taiwan, compare well with the recorded data. The effect of random variability in the source parameters on the differential ground motion is also examined; the analysis suggests that randomness in the rise time and the rupture velocity increases the frequency content of the differential strong ground motion.

Stochastic differential ground motion

Zerva, A. / Shinozuka, M.

AbstractAn important consideration in the seismic analysis and design of lifeline systems is the differential motion between their supports, which may induce significant stresses and strains in the structure. Presented herein is an analytical model for describing spatial variations of ground motion and differential motions between stations. The results of the application of the model to the earthquake of January 29, 1981 at Lotung, Taiwan, compare well with the recorded data. The effect of random variability in the source parameters on the differential ground motion is also examined; the analysis suggests that randomness in the rise time and the rupture velocity increases the frequency content of the differential strong ground motion.

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Title:

Stochastic differential ground motion

Contributors:

Zerva, A. (author) / Shinozuka, M. (author)

Published in:

Structural Safety ; 10 ; 129-143

Publication date:

1991-01-01

Size:

15 pages

ISSN:

DOI:

https://doi.org/10.1016/0167-4730(91)90010-7

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

differential response spectra , random source parameters , seismic ground motion , simulations , spatial variation

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