000020072 001__ 20072
000020072 005__ 20170118182353.0
000020072 04107 $$aeng
000020072 046__ $$k2017-01-09
000020072 100__ $$aBoroschek, R.
000020072 24500 $$aSite Characterization for Strong Motion Stations in Latin American Countries

000020072 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000020072 260__ $$b
000020072 506__ $$arestricted
000020072 520__ $$2eng$$aThe geotechnical characteristics of a site for a strong motion station have a substantial bearing on understanding the recorded data and its usefulness. Latin American countries, with very limited budgets for strong motion monitoring, have reluctantly restricted their site evaluations to simple visual inspections and, in general, to noninvasive techniques—intensive soil explorations are rare. This article presents a summary of the methodology used in Argentina, Chile, Costa Rica, Colombia, Ecuador, El Salvador, Mexico, Nicaragua, Panama, Peru and Venezuela. Most of the above countries apply similar procedures. Initial site selection criteria considered for a new strong motion instrument station are typically based on the site’s ease of instrumentation, followed by population density, the area’s economic importance, instrument safety and communication accessibility. After these considerations have been examined, the seismic site class is evaluated. In general, once the site has been pre-selected, an initial classification is performed based on visual inspections of surface soils, data from exploration of nearby constructions, and available geotechnical and geological maps of the site. For all recording stations, a detailed study is performed only after the station has been installed and, more commonly, after critical data have already been recorded at the station. Most sites are typically characterized using very basic analytical methods such as horizontal-to-vertical-spectral-ratios (MHVSR) as recorded from ambient vibration (microtremor), or EHVSR from small and large amplitude earthquake recordings. A much smaller set of stations has estimations based on noninvasive surfacewave techniques that include the spatial auto-correlation (SPAC) analysis method and/or the multi-spectral analysis of surface waves (MASW) method, and on rare occasions, estimations are based on soil boring exploration with downhole shear wave velocities measurements.

000020072 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000020072 653__ $$astrong motion data, site characterization, ambient vibration, geophysical exploration.

000020072 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000020072 720__ $$aBoroschek, R.$$iGiuliano, A.$$iGarcia, H.$$iSchmidt, V.$$iCliment, A.$$iSingaucho, J.C.$$iViracucha, C.$$iTorres, R.$$iAlcantara, L.$$iTalavera, E.$$iTavera, H.$$iLazares, F.$$iRendón, H.$$iRocabado, V.$$iSchmitz, M.
000020072 8560_ $$ffischerc@itam.cas.cz
000020072 8564_ $$s741494$$uhttps://invenio.itam.cas.cz/record/20072/files/5016.pdf$$yOriginal version of the author's contribution as presented on USB, paper 5016.
000020072 962__ $$r16048
000020072 980__ $$aPAPER