000011118 001__ 11118
000011118 005__ 20141205155838.0
000011118 04107 $$aeng
000011118 046__ $$k2008-10-12
000011118 100__ $$aNakamura, Yutaka
000011118 24500 $$aOn the H/V Spectrum

000011118 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000011118 260__ $$b
000011118 506__ $$arestricted
000011118 520__ $$2eng$$aThe H/V spectral ratio is overviewed from its origin and on the application for practical disaster prevention. First of all the H/V spectral ratio was found from the strong motion records at various sites in Japan. On the soft ground, horizontal motion is larger than vertical motion. On the other hand, on the hard ground, both horizontal and vertical motions are similar to each other both on the maximum value and waveform. First, horizontal to vertical ratio was derived from each maximum value and was compared with the softness of ground and the amplification factor. As a result, horizontal to vertical ratio of maximum value highly corresponds to these ground characteristics. On the next step, the H/V spectral ratio of microtremor measured at anywhere was confirmed that it is able to estimate the predominant frequency and the amplification factor for any researchers, and the result of estimation is stable for the measured time and season. The H/V spectral ratio shows the amplification characteristics by the multiple reflections of the SH wave at least around F0, the predominant frequency of sedimentary layer, and shows the characteristics confused by the Rayleigh wave around 2F0. In case of less effect of the Rayleigh wave it is possible to estimate not only preliminary peak but also secondary peak of amplification characteristics caused by multiple reflections with the H/V spectral ratio.

000011118 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000011118 653__ $$aHVSR, QTS, Microtremor, Strong Motion, Predominant Frequency, Amplification Factor

000011118 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000011118 720__ $$aNakamura, Yutaka
000011118 8560_ $$ffischerc@itam.cas.cz
000011118 8564_ $$s1534708$$uhttps://invenio.itam.cas.cz/record/11118/files/07-0033.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 07-0033.
000011118 962__ $$r9324
000011118 980__ $$aPAPER