000010664 001__ 10664
000010664 005__ 20141205155751.0
000010664 04107 $$aeng
000010664 046__ $$k2008-10-12
000010664 100__ $$aLi, Hongjing
000010664 24500 $$aA Note on the Stationary Model of Earthquake Induced Ground Motion With a Hu Spectrum

000010664 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010664 260__ $$b
000010664 506__ $$arestricted
000010664 520__ $$2eng$$aThe Hu spectral model, a modified Kanai-Tajimi spectral model for the stationary stochastic process of earthquake ground motion, is analyzed. According to the Hu spectral model, the spectral density function of the Kanai-Tajimi spectrum is modified only during the low frequency range and in good accordance with the Kanai-Tajimi spectrum during the moderate and high frequencies. It is proved that the earthquake-induced ground acceleration process with the Hu spectrum is essentially the result of which a filtered Gaussian white noise process on the rock is filtered by the overlaying soil represented by a linear single-freedom-degree system, namely it is a twice filtered white noise process. This shows that the Hu spectral model is not only concise in the mathematical expression but also distinct in physical meaning and reasonable in practice. Furthermore, the low frequency control factor which determines the low frequency contents in Hu spectral model is investigated and evaluated from the observation data of earthquake ground motion.

000010664 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010664 653__ $$aearthquake ground motions, stochastic process, Kanai-Tajimi spectrum, Hu spectrum, low frequency control factor

000010664 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010664 720__ $$aLi, Hongjing$$iSun, Guangjun$$iRen, Yongliang
000010664 8560_ $$ffischerc@itam.cas.cz
000010664 8564_ $$s115174$$uhttps://invenio.itam.cas.cz/record/10664/files/03-03-0050.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 03-03-0050.
000010664 962__ $$r9324
000010664 980__ $$aPAPER