000013259 001__ 13259
000013259 005__ 20161114160333.0
000013259 04107 $$aeng
000013259 046__ $$k2009-06-22
000013259 100__ $$aDu , Chengbin
000013259 24500 $$aSimulation of earthquake ground motions with seismic physical characteristic

000013259 24630 $$n2.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000013259 260__ $$bNational Technical University of Athens, 2009
000013259 506__ $$arestricted
000013259 520__ $$2eng$$aA methodology is proposed to simulate artificial non-stationary earthquake acceleration time histories with the seismic physical characteristic in this paper. The methodology is based on the Priestley’s theory of non-stationary random processes with Evolutionary Power Spectral Density Function(EPSDF).The relationship between the acceleration evolutionary power spectral density function and the seismic Fourier Amplitude Spectra(FAS) is established, then by combining the EPSDF which takes into account the seismic physical characteristic with the engineering spectral representation method, the methodology to simulate artificial earthquake ground motions with seismic physical characteristic in the present work is presented. To evaluate the performance of the proposed methodology accelerations, four station earthquake acceleration records of the Northridge were simulated, some response and seismic variables such as response Fourier amplitude spectra were computed, the results were compared with actual earthquake obtained in the stations, the comparison shows that the simulation coincides well with the actual one. The merit of the proposed method is the simulation earthquake acceleration records consistent with the seismic characteristics of the sites where the structure will be constructed by combining the EPSDF with the spectral representation method. The simulation acceleration records can be used to earthquake-resistant analysis of the region where seismic activity is importantly but recorded acceleration time history is scarce.

000013259 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000013259 653__ $$aEarthquake ground motion, Evolutionary spectrum, Non-stationary, Fourier Amplitude Spectra. Abstract. A methodology is proposed to simulate artificial non-stationary earthquake acceleration time histories with the seismic physical characteristic in this paper. The methodology is based on the Priestley’s theory of non-stationary random processes with Evolutionary Power Spectral Density Function(EPSDF).The relationship between the acceleration evolutionary power spectral density function and the seismic Fourier Amplitude Spectra(FAS) is established, then by combining the EPSDF which takes into account the seismic physical characteristic with the engineering spectral representation method, the methodology to simulate artificial earthquake ground motions with seismic physical characteristic in the present work is presented. To evaluate the performance of the proposed methodology accelerations, four station earthquake acceleration records of the Northridge were simulated, some response and seismic variables such as response Fourier amplitude spectra were computed, the results were compared with actual earthquake obtained in the stations, the comparison shows that the simulation coincides well with the actual one. The merit of the proposed method is the simulation earthquake acceleration records consistent with the seismic characteristics of the sites where the structure will be constructed by combining the EPSDF with the spectral representation method. The simulation acceleration records can be used to earthquake-resistant analysis of the region where seismic activity is importantly but recorded acceleration time history is scarce.

000013259 7112_ $$aCOMPDYN 2009 - 2nd International Thematic Conference$$cIsland of Rhodes (GR)$$d2009-06-22 / 2009-06-24$$gCOMPDYN2009
000013259 720__ $$aDu , Chengbin$$iLiu, Zhiming$$iRen, Qingwen
000013259 8560_ $$ffischerc@itam.cas.cz
000013259 8564_ $$s223051$$uhttps://invenio.itam.cas.cz/record/13259/files/CD386.pdf$$yOriginal version of the author's contribution as presented on CD, section: Masonry structures - i.
000013259 962__ $$r13074
000013259 980__ $$aPAPER