000011830 001__ 11830
000011830 005__ 20141205155951.0
000011830 04107 $$aeng
000011830 046__ $$k2008-10-12
000011830 100__ $$aTanaka, Kohei
000011830 24500 $$aCovariance Structure Between Spectral Accelerations with Different Periods

000011830 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000011830 260__ $$b
000011830 506__ $$arestricted
000011830 520__ $$2eng$$aGround motion attenuation relationships for spectral acceleration have been developed in Japan. Although these prediction models can usually provide a mean value and a standard deviation for each specified period, they do not characterize covariance property of spectral acceleration between two different periods. This leads to less precise prediction of the response of structural systems such as multi-degree-of-freedom systems and/or nonlinear systems. Some studies have paid attention to this shortcoming and tried to model the correlation of spectral accelerations by statistical methods based on the small number of records. In the present paper, a large amount of ground motion records, which have been observed from recent earthquakes by K-NET and KiK-NET, were used for the covariance analysis. The covariance structure of two spectral values was investigated through principal component analysis (PCA). The covariance characteristics were physically interpreted by examining the effects of the different attenuation relationships, paths and soil conditions.

000011830 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000011830 653__ $$aattenuation relationship, covariance structure, soil condition, principal component analysis, correlation model, generation of time history

000011830 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000011830 720__ $$aTanaka, Kohei$$iWang, M.$$iTakada, T.
000011830 8560_ $$ffischerc@itam.cas.cz
000011830 8564_ $$s318329$$uhttps://invenio.itam.cas.cz/record/11830/files/02-0077.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 02-0077.
000011830 962__ $$r9324
000011830 980__ $$aPAPER