000019338 001__ 19338
000019338 005__ 20170118182312.0
000019338 04107 $$aeng
000019338 046__ $$k2017-01-09
000019338 100__ $$aGonzález-Drigo, J.R.
000019338 24500 $$aOrientation-Independent Measures of Ground Motion for a Database of Central America.

000019338 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019338 260__ $$b
000019338 506__ $$arestricted
000019338 520__ $$2eng$$aGround Motion Prediction Equations commonly use response spectra as input data. However, the selection of a unique spectral function which minimizes the error between predicted and observed values, remains a subject of research. Recently, response spectra independent of the sensors orientation have been used in seismic hazard studies, showing a reduction in the error of the predictive equations. Nevertheless, the use of response spectra determined from the geometric mean of the horizontal orthogonal response spectra is in debate. In particular, when it is convenient to know about the maximum spectral accelerations expected. In this paper, different Orientation-Independent Measures are calculated for a Strong Motion Data Base of Central America. A total of 1406 strong motion records with 3 orthogonal acceleration time series are used. For this database, the median value of the ratio between the maximum spectral response with orientation of the sensors independence and the one of the geometric mean of the as-recorded spectral response varies as a function of the period, with a minimum of 1.22 at 0.1 seconds and a maximum of 1.3 at periods greater than 1 second. A new approach, for determining the maximum Orientation-Independent spectral response, which is based on the Root-Sum-of-Squares, is probed.

000019338 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019338 653__ $$aDirectionality; Ground Motion Equations; Seismic Response.

000019338 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019338 720__ $$aGonzález-Drigo, J.R.$$iBarbat, A.H.$$iDiaz, S.A.$$iPujades, L.G.$$iHidalgo-Leiva, D.A.
000019338 8560_ $$ffischerc@itam.cas.cz
000019338 8564_ $$s634384$$uhttps://invenio.itam.cas.cz/record/19338/files/342.pdf$$yOriginal version of the author's contribution as presented on USB, paper 342.
000019338 962__ $$r16048
000019338 980__ $$aPAPER