000019033 001__ 19033
000019033 005__ 20170118182256.0
000019033 04107 $$aeng
000019033 046__ $$k2017-01-09
000019033 100__ $$aKwong, Neal Simon
000019033 24500 $$aA Method for Selecting Hazard-Consistent Ground Motions and Estimating Seismic Demand Hazard Curves

000019033 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019033 260__ $$b
000019033 506__ $$arestricted
000019033 520__ $$2eng$$aThis paper presents a method to select unscaled ground motions for estimating seismic demand hazard curves (SDHCs) in performance-based earthquake engineering (PBEE). Currently, SDHCs are estimated from a probabilistic seismic demand analysis (PSDA), where several ensembles of ground motions are selected and scaled to a user-specified scalar conditioning intensity measure (IM). In contrast, the method presented herein provides a way to select a single ensemble of unscaled ground motions for estimating the SDHC. In the context of unscaled motions, the proposed method requires three inputs: (i) a database of unscaled ground motions, (ii) a small vector of IMs for selecting ground motions IM, and (iii) the number of ground motions to be selected, n; in the context of scaled motions, two additional inputs are needed: (i) a maximum acceptable scale factor, SF max , and (ii) a target fraction of scaled ground motions, γ . Using a recently developed approach for evaluating ground motion selection and modification procedures, the proposed method is evaluated and is demonstrated to provide accurate estimates of the SDHC when ground motions are unscaled.

000019033 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019033 653__ $$aselection of unscaled ground motions; Importance Sampling; hazard consistency; seismic demand hazard curve

000019033 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019033 720__ $$aKwong, Neal Simon
000019033 8560_ $$ffischerc@itam.cas.cz
000019033 8564_ $$s759728$$uhttps://invenio.itam.cas.cz/record/19033/files/2718.pdf$$yOriginal version of the author's contribution as presented on USB, paper 2718.
000019033 962__ $$r16048
000019033 980__ $$aPAPER