000010672 001__ 10672
000010672 005__ 20141205155752.0
000010672 04107 $$aeng
000010672 046__ $$k2008-10-12
000010672 100__ $$aLi, Jie
000010672 24500 $$aRandom Function Model Research on Strong Ground Motion

000010672 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010672 260__ $$b
000010672 506__ $$arestricted
000010672 520__ $$2eng$$aSince a stochastic process may be represented perfectly by a family of functions with random parameters, an original random function model, in this context, for earthquake ground motion accelerograms is proposed. The new model contains two parts: one is constructed for describing the Fourier amplitude spectrum based on the physical theory; the other behaves the Fourier phase spectrum employing the empirical theorem. The Fourier amplitude spectrum model (FASM) is originated from the dynamic equation of a single-degree-of-freedom system, featuring the amplitude spectrum of the recorded accelerograms in principles. However, the Fourier phase spectrum model (FPSM) is built on the trend patterned accumulated phase (or unwrapped phase) spectrum which can be denoted by a series of linear polynomials or trigonometric functions. Finally, the model has been justified by the real accelerograms.

000010672 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010672 653__ $$astrong ground motion, Fourier amplitude spectrum, phase unwrapping, random function

000010672 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010672 720__ $$aLi, Jie$$iAn, Zihui
000010672 8560_ $$ffischerc@itam.cas.cz
000010672 8564_ $$s402986$$uhttps://invenio.itam.cas.cz/record/10672/files/02-0049.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 02-0049.
000010672 962__ $$r9324
000010672 980__ $$aPAPER