000019854 001__ 19854
000019854 005__ 20170118182339.0
000019854 04107 $$aeng
000019854 046__ $$k2017-01-09
000019854 100__ $$aOlafsson, Simon
000019854 24500 $$aGround Motion Prediction Equation for Pga and Sa Based on the Brune Extended Source Model

000019854 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019854 260__ $$b
000019854 506__ $$arestricted
000019854 520__ $$2eng$$aIn this paper theoretical ground motion prediction model is applied to data from four of the largest earthquakes that occured in South Iceland from 1987-2008. The model is based on the Brune point source model that has been extended by using an exponential function to represent spectral decay. A closed form reprentation for both PGA and response spectra can be obtained by applying Parseval’s theorem and carrying out the integration using a frequency domain representation. Peak factors relating rms and peak values are then applied. The model is presented as a GMPE for South-Iceland that can either give PGA or spectral acceleration as a function of distance from fault and seismic moment. Most of the model parameters are estimated by applying optimization in the frequency domain using ground motion records. Applying the stochastic method the theoretical model is used for simulating ground motion records for the four largest earthquakes in South Iceland from1987-2008. Here the near- and far-field equations for the ground motion and response are put foreward. Then the models are applied to the equations and an example given for the attenuation of ground motion for the earthquake on 21st June 2000. A comparison is made with empirical ground motion models based on European data that are commonly used for seismic hazard studies. An example of applying point source models to estimate response spectra for sites close to the earthquake fault and comparing the estimates obtained using near- and far-field models with the average response obtained from strong-motion records obtained during the earthquake.

000019854 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019854 653__ $$aGMPE, Source parameters, Simulated earthquakes, Brune‘s model

000019854 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019854 720__ $$aOlafsson, Simon$$iRupakhety, Rajesh
000019854 8560_ $$ffischerc@itam.cas.cz
000019854 8564_ $$s229704$$uhttps://invenio.itam.cas.cz/record/19854/files/4553.pdf$$yOriginal version of the author's contribution as presented on USB, paper 4553.
000019854 962__ $$r16048
000019854 980__ $$aPAPER