AN EMPIRICAL SCALING OF STRONG-MOTION SPECTRA WITH APPLICATION TO ESTIMATE OF SOURCE SPECTRA

Autor:	Makoto Kamiyama, Tadashi Matsukawa
Rok vydání:	1990
Předmět:	Dummy variable Wave propagation Statistics Motion (geometry) Regression analysis Statistical physics Earthquake magnitude Scaling Regression Spectral line Mathematics
Zdroj:	Doboku Gakkai Ronbunshu. 1990:213-224
ISSN:	1882-7187 0289-7806
DOI:	10.2208/jscej.1990.422_213
Popis:	A new regression model of strong-motion spectra is derived by incorporating the conception of the dummy variables to the conventional regression model. The dummy variables are available not only to obtain the amplification factors due to local soil conditions of each observation site but also to estimate the non-linear dependences of spectral amplitude on earthquake magnitude and hypocentral distance. The new regression model is applied to 228 strong-motion spectra obtained in Japan. The regression results are used to estimate the source spectra, as well as being discussed in detail, in particular, from the view points of faulting and wave propagation mechanisms. It is finally coneluded that the specific barrier model is more connected with the present statistical source spectra than the stochastic ω-square model.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bfde3d6da0f5ca0ca55427d2021f1eac https://doi.org/10.2208/jscej.1990.422_213 Zobrazit plný text záznamu