ANALYSIS OF THE SPATIAL VARIATION OF SEISMIC WAVES AND GROUND MOVEMENTS FROM SMART-1 ARRAY DATA.

被引：0

作者：

Loh, Chin-Hsiung ^{[1
]}

机构：

[1] Natl Central Univ, Dep of Civil, Engineering, Chung-Li, Taiwan, Natl Central Univ, Dep of Civil Engineering, Chung-Li, Taiwan

来源：

Earthquake Engineering & Structural Dynamics | 1985年 / 13卷 / 05期

关键词：

SEISMOGRAPHS; -; SOILS; Vibrations;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The spatial variaton of seismic waves along the principal direction is studied. From frequency-domain analysis, mathematical models of the spatial variation of ground displacement are developed using a wave-number spectrum and the cross-spectral density function between two spatial coordinates; these models in turn can provide two alternative models for the random vibration analysis of extensive structures subject to multiple point seismic excitation. The SMART-1 array data gathered during the January 29, 1981 earthquake also are used to demonstrate calculation of the ground strains and differential movements of the array site. From time-domain analysis, the spatial variation of seismic waves is defined for ground motion along the identified principal direction. The time variation of evolutionary spectra characterized by frequency-dependent parameters is used for this formulation.

引用

页码：561 / 581

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