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[1]ZHONG Ju-fang,HU Xiao,XING Yi-chuan.Analysis of Spatial Variability on Evolutionary Power Spectrum[J].Journal of Seismological Research,2010,33(01):99-105.

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Analysis of Spatial Variability on Evolutionary Power Spectrum

Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume: 33 Number of periods: 2010 01 Page number: 99-105 Column: Public date: 2010-01-01

Title:: Analysis of Spatial Variability on Evolutionary Power Spectrum

Author(s):: ZHONG Ju-fang¹; HU Xiao²; XING Yi-chuan³; (1.College of Civil Engineering,Nanchang Hangkong University,Nanchang 330063,Jiangxi,China)(2.Earthquake Engineering and Technology Research,China Institute of Water Resourcesand Hydropower Research,Beijing 100044,China)(3.Department of Integrated Service

Keywords:: evolutionary power spectra; multi-filter technique; spatial variability; stochastic prediction model

CLC:: P315.9

DOI:: -

Abstract:: Based on the strong-motion datasets of SMART-1 array and Kameda's evolutionary power spectral model,the evolutionary power spectral of earthquake ground motions were calculated by using multi-filter technique.Each parameter of the Kameda's evolutionary power spectral model were fitted by nonlinear least squares fit.Stochastic model of each parameter varying with frequency were constructed by analyzing the distribution law of spot figures of parameters varying with frequency.The spatial variability stochastic prediction models were studied by analyzing the influence of the variation of planar coordinate and soil thickness.Results gained in this paper can be applied to non-stationary,multi-point ground motion simulation.

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Last Update: 2010-01-23