000012237 001__ 12237
000012237 005__ 20141205160033.0
000012237 04107 $$aeng
000012237 046__ $$k2008-10-12
000012237 100__ $$aYou, Hongbing
000012237 24500 $$aScattering of SV Waves by a Local Nonhomogeneous Body in a Layered Half-Space

000012237 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000012237 260__ $$b
000012237 506__ $$arestricted
000012237 520__ $$2eng$$aThe scattering of SV waves by a local nonhomogeneous body of arbitrary shape in a layered half-space is modeled using the indirect boundary element method (IBEM) in the frequency domain. The free-field responses are calculated by using the exact dynamic-stiffness matrix of soil layers to determine the displacements and stresses at the interface of the local nonhomogeneous body , and fictitious distributed loads are then applied at the same interface in the free field to calculate the Green’s functions for displacements and stresses. The amplitudes of the fictitious distributed loads are determined from the boundary conditions, and the displacements arising from the waves in the free field and from the fictitious distributed loads are summed to obtain the solution. The effects of width and thickness of the local nonhomogeneous body, and the incident angle and frequency on the amplitudes of the surface displacements are studied. These results are compared with that of one-dimensional model. The numerical results indicate: The two-dimensional scattering effect of local nonhomogeneous body is significant and quite different from that of one-dimensional model. The influence of local nonhomogeneous body on determination of design earthquake ground motion parameters should be considered reasonably in evaluation of seismic safety for engineering site.

000012237 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000012237 653__ $$alayered site, local nonhomogeneous body, IBEM, SV waves, scattering

000012237 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000012237 720__ $$aYou, Hongbing$$iZhao, Fengxin
000012237 8560_ $$ffischerc@itam.cas.cz
000012237 8564_ $$s485954$$uhttps://invenio.itam.cas.cz/record/12237/files/04-01-0008.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 04-01-0008.
000012237 962__ $$r9324
000012237 980__ $$aPAPER