000020008 001__ 20008
000020008 005__ 20170118182350.0
000020008 04107 $$aeng
000020008 046__ $$k2017-01-09
000020008 100__ $$aHollender, Fabrice
000020008 24500 $$aTowards the Definition of Reference Motions (1000<vs<3000 M/S): Analysis of the Kik-Net Data and Correction of the Local Site Effects

000020008 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000020008 260__ $$b
000020008 506__ $$arestricted
000020008 520__ $$2eng$$aA key scientific component in Seismic Hazards Analysis (SHA) is the assessment of a local hazard for hard rock sites (1000 < V S30 < 3000 m/s), either for applications to installations built on this site category, or as a reference motion for site effect computation. Within the context of SHA, empirical ground motion prediction equations (GMPEs) are the traditional basis for estimating shaking intensities and V S30 , the time-averaged shear-wave velocity in the upper 30 meters from the surface, is the basis to account for site conditions. The current GMPEs, however, are not well constrained for V S30 larger than 1000 m/s (only a few records on high V S30 sites are included in the main accelerometric databases). The presently used approach is based on host-to-target adjustment techniques based on V S30 and κ 0 values. This study is investigating alternative methods to estimate reference motions on site effect free, very hard rocks (1000 < V S30 < 3000 m/s). We explore methodologies to obtain a prediction for reference motions (1000 < V S30 < 3000 m/s) by using the “rock” Japanese KiK-net sites with 500 < V S30 < 1350 m/s. Each site presents the advantages of having sensor pairs (one at the surface, and one installed in a borehole at depth between 100 and 200 m for most sites and up to 2000 m) and geotechnical characterization (P- and S-wave velocity profiles) for surface and down-hole sensors. Firstly, the “rock” transfer functions are estimated in two ways: empirically (spectral ratios between surface and depth records) and theoretically (linear SH1D simulation). These two approaches are compared to validate the input parameters and also to select the stations for which the 1D approximation is verified. Then, two new accelerometric datasets characterizing hard rock sites (1000 < V S30 < 3000 m/s) in free surface condition are developed:

000020008 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000020008 653__ $$aHard Rock reference motion – Site effects – KiK-net – GMPE – « host-to-target » adjustments

000020008 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000020008 720__ $$aHollender, Fabrice$$iLaurendeau, Aurore$$iBard, Pierre-Yves$$iKtenidou, Olga-Joan$$iFoundotos, Laetitia$$iHernandez, Bruno$$iPerron, Vincent
000020008 8560_ $$ffischerc@itam.cas.cz
000020008 8564_ $$s577202$$uhttps://invenio.itam.cas.cz/record/20008/files/4936.pdf$$yOriginal version of the author's contribution as presented on USB, paper 4936.
000020008 962__ $$r16048
000020008 980__ $$aPAPER