000019530 001__ 19530
000019530 005__ 20170118182322.0
000019530 04107 $$aeng
000019530 046__ $$k2017-01-09
000019530 100__ $$aSaez, Esteban
000019530 24500 $$aQuantitative Estimation of Site Effects in the City of Arica By the Spectral Element Method

000019530 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019530 260__ $$b
000019530 506__ $$arestricted
000019530 520__ $$2eng$$aChile lies on the contact between the Nazca and South American plates, making it one of the most seismic countries in the world. In recent years, several studies have been carried out with the purpose of characterizing the dynamic properties of the soils of the most populated cities in the north of Chile. The purpose of this work is to estimate, by numerical modeling, the seismic amplification of a dense populated area of the city of Arica. Spatial distribution of main soil dynamic properties have been obtained from a detailed geophysical survey, including surface-wave based methods and gravimetry. To estimate the site effects, we solve the wave propagation equation in full heterogeneous media by the Spectral Element Method (SEM). This method allows including the topography, the irregular contact between soils and bedrock and heterogeneities of main materials properties along the computational domain. The inelastic behavior of the soil has been considered, using stiffness degradation and damping curves. The computations were done using the high performance open-source numerical code “SPEED” [1], which can solve the problem in parallel computers. Results of the distribution of the Peak Ground Acceleration (PGA) and other strong-motion indicators are compared against standard 1D horizontally layered modeling.

000019530 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019530 653__ $$aSite effects, Spectral Elements Method, Surface-wave geophysics

000019530 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019530 720__ $$aSaez, Esteban$$iMuñoz, Alvaro
000019530 8560_ $$ffischerc@itam.cas.cz
000019530 8564_ $$s1335141$$uhttps://invenio.itam.cas.cz/record/19530/files/3843.pdf$$yOriginal version of the author's contribution as presented on USB, paper 3843.
000019530 962__ $$r16048
000019530 980__ $$aPAPER