000009645 001__ 9645
000009645 005__ 20141205150226.0
000009645 04107 $$aeng
000009645 046__ $$k2008-10-12
000009645 100__ $$aCauzzi, Carlo
000009645 24500 $$aLong-Period Ground Motion Evaluation from a Large Worldwide Digital Strong Motion Database

000009645 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000009645 260__ $$b
000009645 506__ $$arestricted
000009645 520__ $$2eng$$aThe reliability of long-period ground motion from digital strong motion data is first explored using records from co-located broadband and digital strong motion instruments. It is shown that displacement waveforms obtained by double integration of the accelerogram need not be free of unrealistic baseline drift to yield reliable spectral ordinates up to at least 10 s. These findings are further corroborated by considering a set of synthetic accelerograms contaminated by random long-period noise. The results of this study suggest that high-pass filtering the digital acceleration record from a cut-off period selected to suppress baseline drifts on the displacement waveform appears to be in most cases too conservative and unduly depletes reliable information on long-period spectral ordinates. Based on these results, new predictive equations for long-period ground motions are obtained and implemented in probabilistic seismic hazard analyses. To illustrate some representative results, ground motion hazard maps in terms of long-period spectral displacements for the Southern Calabrian Arc (Italy) are shown.

000009645 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000009645 653__ $$aAttenuation relationships, digital accelerograms, displacement-based design, displacement response spectra, ground motion prediction, long-period ground motion

000009645 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000009645 720__ $$aCauzzi, Carlo$$iFaccioli, Ezio$$iPaolucci, Roberto$$iVillani, M.
000009645 8560_ $$ffischerc@itam.cas.cz
000009645 8564_ $$s305402$$uhttps://invenio.itam.cas.cz/record/9645/files/S10-047.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: S10-047.
000009645 962__ $$r9324
000009645 980__ $$aPAPER