000018337 001__ 18337
000018337 005__ 20170118182217.0
000018337 04107 $$aeng
000018337 046__ $$k2017-01-09
000018337 100__ $$aCadet, Héloïse
000018337 24500 $$aImpact of Non-Linear Soil Behavior on Site Response Amplitude

000018337 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000018337 260__ $$b
000018337 506__ $$arestricted
000018337 520__ $$2eng$$aWe present an extensive analysis of the quantitative impact of the non-linear soil behavior on site response at 174 sites of the Japanese KiK-net network. The nonlinear to linear site response ratio, RSRNL-L is calculated by comparing the surface / downhole Fourier spectral ratio for strong events and for weak events. 3 thresholds of surface PGA are tested to characterize the "strong events": 100, 200 and 300 cm/s2, while weak events correspond to surface PGA in the range [0.1 – 25 cm/s2]. This ratio exhibits a "typical shape"; with a low frequency part above 1 and a high frequency part generally below 1, separated by a transition zone around a site-dependent frequency labelled fNL (characterized by RSRNL-L = 1). The average maximum amplitudes of RSRNL-L are 1.4, 1.5 and 1.6, and the minimums 0.6, 0.5 and 0.5 for PGA thresholds 100, 200 and 300 cm/s2 respectively, showing that non-linear soil behaviour results in significant site response modifications even for moderate PGA values of 100 cm/s2.

000018337 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000018337 653__ $$aNonlinear site response.

000018337 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000018337 720__ $$aCadet, Héloïse$$iRégnier, Julie
000018337 8560_ $$ffischerc@itam.cas.cz
000018337 8564_ $$s486235$$uhttps://invenio.itam.cas.cz/record/18337/files/126.pdf$$yOriginal version of the author's contribution as presented on USB, paper 126.
000018337 962__ $$r16048
000018337 980__ $$aPAPER