000020071 001__ 20071
000020071 005__ 20170118182353.0
000020071 04107 $$aeng
000020071 046__ $$k2017-01-09
000020071 100__ $$aTiliouine, B.
000020071 24500 $$aInvestigation of Incidence Angle Effects on 2-D Soil Amplification of Bedrock Seismic Motions Using a Discrete Time Approach

000020071 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000020071 260__ $$b
000020071 506__ $$arestricted
000020071 520__ $$2eng$$aThe problem of seismic soil amplification is of particular importance in relation to the assessment of local soil condition effects on seismic motions characteristics in soil deposits. Most of the practical studies have been limited to 1-D amplification of vertically propagating SH-waves considering essentially the problem in the frequency domain. In this paper, the approach is extended to an investigation of the effects of incident angles on 2-D amplification of obliquely propagating shear waves based on a discrete–time wave propagation formulation. Simple analytical models of seismic site amplification with respect to bedrock for obliquely propagating shear waves in both elastic and viscoelastic soil deposits overlying bedrock are derived. Emphasis is placed on the significance of incidence angle effects on seismic site amplification, considering different values of rock – soil impedance ratios. Sensitivity analyses are performed utilizing the soil profile model of the site of El–Asnam Cultural Center, in the El–Chellif region (NorthWestern Algeria) formulated on the basis of field test and laboratory investigations. Numerical results are discussed in terms of site amplification functions, spectral peak ratios and simulated surface acceleration time histories at the studied site.

000020071 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000020071 653__ $$aNon vertical incidence, Bedrock seismic motions, 2-D soil amplification, Discrete-time approach, El-Asnam Earthquake.

000020071 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000020071 720__ $$aTiliouine, B.$$iBerrah, M.K.$$iHammoutene, M.$$iDjabali-Mohabeddine, Hafida
000020071 8560_ $$ffischerc@itam.cas.cz
000020071 8564_ $$s315109$$uhttps://invenio.itam.cas.cz/record/20071/files/5015.pdf$$yOriginal version of the author's contribution as presented on USB, paper 5015.
000020071 962__ $$r16048
000020071 980__ $$aPAPER