Presenter: Yu-Hua Liou
Date: 2017/02/23
Abstract
Site characters plays an important role in the amplification of strong ground motion. In order to realize the effects of various surficial geology, the following two studies are valuable for the estimation of amplification in both soil and rock sites. In Joyner et al. (1981), they use data from the Coyote Lake earthquake to examine the effect of soil on strong ground motion with particular emphasis on the linearity of the response, comparing the observed data with the response computed for a plane layered linear viscoelastic model and for plane-layered nonlinear models. On the other hand, predictions of ground motions are often needed on rock sites, especially for use in seismic design and building codes. In Boore et al. (1997), they show the site amplification on rock sites and very hard rock sites by estimating seismic shear-wave velocity and density as a function of depth with borehole data and studies of crustal velocities. In these two papers, the site effects of various surficial geology are obtained and providing available comparisons with the results of my research.
Reference
W.B. Joyner, R.E. Warrick and T.E. Fumal, “THE EFFECT OF QUATERNARY ALLUVIUM ON STRONG GROUND MOTION IN THE COYOTE LAKE, CALIFORNIA, EARTHQUAKE OF 1979”, Bulletin of the Seismological Society of America, Vol 71, pp. 1333-1349, 1981.
D.M. Boore and W.B. Joyner, “Site Amplifications for Generic Rock Sites”, Bulletin of the Seismological Society of America, Vol 87, pp. 327-341, 1997.