000018944 001__ 18944
000018944 005__ 20170118182249.0
000018944 04107 $$aeng
000018944 046__ $$k2017-01-09
000018944 100__ $$aFarrugia, Joseph
000018944 24500 $$aEarthquake Site Class Characterization of Seismograph and Strong-Motion Stations in Canada and Chile

000018944 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000018944 260__ $$b
000018944 506__ $$arestricted
000018944 520__ $$2eng$$aEarthquake recording stations, seismographs and/or strong-motion instruments, located on underlying soils are generally installed without comprehensive knowledge or testing of the underlying geologic material in Canada and Chile. To remedy this issue, various in situ geophysical methods are applied to evaluate the underlying ground conditions at earthquake recording stations in Canada and Chile with the overall aim to develop a standard, systematic, and inexpensive procedure for earthquake site classification. The underlying geology at Canadian and Chilean earthquake recording stations is immensely variable and therefore comprehensive to this study's application. At central and southern Chilean strong-motion stations that recorded the 2010 M W 8.8 Maule earthquake, boreholes were drilled to 30-80 m depth and various invasive methods (downhole velocity, laboratory bender element, and standard penetration testing) were performed, as well as passive (ambient vibration) array testing at surface. At northern Chilean strong-motion stations that recorded the 2014 M W 8.2 Iquique earthquake, a combination of active (hammer-impact) and passive surface wave array testing was performed. Combination surface wave array testing is also performed at Canadian seismograph stations in Alberta (western Canada) and Ontario (eastern Canada). For all stations, spectral ratio analysis of ambient vibration and available earthquake recordings is performed. A database of each station’s earthquake site classification according to the respective National Building Code in Canada and Chile is generated – both countries have adopted the six NEHRP (Natural Earthquake Hazard Reduction Program) site classification groupings (A-F) based primarily on the harmonic average shear-wave velocity over the upper 30 meters (i.e., V S30 ) with slightly different bounds in v S30 per site class. Expansion or evolution of v S30 -based site classification to include spectral content (i.e., site period or peak frequency classifications) is included in this study.

000018944 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000018944 653__ $$aearthquake site classification, amplification, v S30 , seismic networks.

000018944 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000018944 720__ $$aFarrugia, Joseph$$iAtkinson, Gail$$iBoroschek, Ruben$$iVentura, Carlos$$iBraganza, Sebastian$$iMolnar, Sheri
000018944 8560_ $$ffischerc@itam.cas.cz
000018944 8564_ $$s1111449$$uhttps://invenio.itam.cas.cz/record/18944/files/2538.pdf$$yOriginal version of the author's contribution as presented on USB, paper 2538.
000018944 962__ $$r16048
000018944 980__ $$aPAPER