000018647 001__ 18647
000018647 005__ 20170118182234.0
000018647 04107 $$aeng
000018647 046__ $$k2017-01-09
000018647 100__ $$aKong, Xijun
000018647 24500 $$aSurface Motion Evaluation of Terrace-Shaped Hill Subjected To Incident Plane Sv Wave Using Spectral Element Method

000018647 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000018647 260__ $$b
000018647 506__ $$arestricted
000018647 520__ $$2eng$$aIt has been recognized that effects of the local topographical and geotechnical characteristics are significant on seismic ground motion in the past researches. The terrace-shaped hill is a kind of local irregular topography which is widespread throughout southwest China. In this paper, the spectral element method is employed to investigate the site effects of twodimensional terrace-shaped hill topography subjected to incident plane P-SV waves. Firstly, the spectral-element model is established on fully quadrilateral meshes to simulate wave propagation by the terrace-shaped hill in a half-space. The wave field is typically represented in terms of high-degree Lagrange interpolants and integrals are computed based upon GaussLobatto-Legendre quadrature which leads to a simple explicit time scheme. Then the amplification of surface motions and the peak ground motion along each grade are calculated, and the seismic site effects of terrace-shaped topography on ground motion are evaluated. Finally, influences of some parameters related to the irregular topography, such as configuration of the terrace, characteristics of soil layers, angles of the incident wave, etc. are investigated. The numerical results show that there exist prominent topographical and geotechnical effects on seismic ground movement amplifications in the irregular configurations.

000018647 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000018647 653__ $$aterrace-shaped hill; seismic site effects; spectral element method

000018647 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000018647 720__ $$aKong, Xijun$$iLi, Hongjing
000018647 8560_ $$ffischerc@itam.cas.cz
000018647 8564_ $$s1169049$$uhttps://invenio.itam.cas.cz/record/18647/files/1914.pdf$$yOriginal version of the author's contribution as presented on USB, paper 1914.
000018647 962__ $$r16048
000018647 980__ $$aPAPER