000010437 001__ 10437
000010437 005__ 20141205155727.0
000010437 04107 $$aeng
000010437 046__ $$k2008-10-12
000010437 100__ $$aKamiakito, Noboru
000010437 24500 $$aEstimation of Site Amplification Factors Using Strong Motion Records of by Hokkaido

000010437 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010437 260__ $$b
000010437 506__ $$arestricted
000010437 520__ $$2eng$$aSite amplification factors at subsurface layers are often used as one of the parameters for estimation of strong ground motion. The site amplification factors influence strongly the ground motion at subsurface layers. For example, waveforms obtained from observation sites are sometimes clearly different even if the observation sites are situated in the vicinity of each other. Therefore, it is assumed that the consideration for the influence of site amplification factors on the ground motion at subsurface layers is important, and improving the accuracy of the site amplification factors contributes towards the technology of earthquake disaster mitigation. The authors investigated the site amplification factors at subsurface layers using strong motion records of Hokkaido. The site amplification factors were estimated by adopting microtopography classification based on the Digital National Land Information. It was found that there were areas which did not show similar tendency of site amplification factors when compared to that obtained by strong motion records of Hokkaido. A more detailed investigation of this issue revealed that the tendency was influenced by regional characteristics, such as alluvial fan. Therefore, detailed areas within the microtopography concentrated were selected, and the regression coefficients for estimation of the site amplification factors were re-determined. The tendency of the site amplification factors estimated by detailed area of the microtopography classification became approximately similar to the site amplification factors obtained by the strong motion records. And the site amplification factor was estimated more precisely by determining regression coefficients in consideration of the regional characteristics.

000010437 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010437 653__ $$asite amplification factor, strong motion record, digital national land information, microtopography classification

000010437 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010437 720__ $$aKamiakito, Noboru$$iSato, Takashi$$iNishi, Hiroaki$$iIshikawa, Hiroyuki$$iIkeda, Takaaki
000010437 8560_ $$ffischerc@itam.cas.cz
000010437 8564_ $$s478540$$uhttps://invenio.itam.cas.cz/record/10437/files/02-0115.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 02-0115.
000010437 962__ $$r9324
000010437 980__ $$aPAPER