000018375 001__ 18375
000018375 005__ 20170118182219.0
000018375 04107 $$aeng
000018375 046__ $$k2017-01-09
000018375 100__ $$aTravasarou, Thaleia
000018375 24500 $$aSimplified Procedure for Estimating Seismic Slope Displacements in Subduction Zones

000018375 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000018375 260__ $$b
000018375 506__ $$arestricted
000018375 520__ $$2eng$$aA simplified procedure for estimating seismic shear-induced permanent displacements in subduction earthquake zones is presented. It may be applied to assess the seismic performance of an earth/rockfill dam, natural slope, heap leach pads, or solid-waste landfill. The new procedure uses the framework of the widely used Bray and Travasarou [1] simplified method (BT07). The primary source of uncertainty in assessing the likely performance of an earth slope or system during an earthquake is the input ground motion. Hence, a comprehensive database containing 1620 recorded ground motions from subduction zone interface earthquakes was developed and used to compute seismic slope displacements. The proposed seismic slope displacement model captures the primary influence of the system’s yield coefficient k y , its initial fundamental period T s , and the ground motion’s spectral acceleration at a degraded period of the slope taken as 1.5T s . The model separates the probability of “zero” displacement (i.e., < 1 cm) from the distribution of “nonzero” displacement, so that low values of calculated seismic displacement do not bias the results. The new seismic displacement model better captures the unique seismic setting of subduction earthquakes. The BT07 procedure, which was developed using only shallow crustal earthquake records, tends to overestimate seismic displacements (if applied to subduction settings) relative to the new model which was developed using subduction zone earthquake records. Reasons for the differences in the two models are discussed. The proposed model can be implemented rigorously within a fully probabilistic framework or used deterministically to evaluate seismic displacement potential.

000018375 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000018375 653__ $$aSubduction settings, Seismic displacement, Seismic Performance.

000018375 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000018375 720__ $$aTravasarou, Thaleia$$iBray, Jonhatan$$iMacedo, Jorge
000018375 8560_ $$ffischerc@itam.cas.cz
000018375 8564_ $$s1239621$$uhttps://invenio.itam.cas.cz/record/18375/files/1330.pdf$$yOriginal version of the author's contribution as presented on USB, paper 1330.
000018375 962__ $$r16048
000018375 980__ $$aPAPER