AN DYNAMIC CORNER FREQUENCY BASED SOURCE SPECTRAL MODEL
A source spectral model for stochastic synthesis of near-field ground motion was presented in this paper. It is compared with the famous source spectral model ( 2 ω ) by Brune and the source spectral model with double corner frequencies by Atkinson in different magnitudes. The result shows that the source spectrum by this paper is very close to Brunes for small magnitude and is close to Atkinsons for large magnitude. Afterwards, the source spectral model is combined with the dynamic corner frequency to eliminate the effect of the sub-fault size on the high frequency radiating energy. The improved source spectral model was verified finally from the comparing the ground motion synthesized with the records at three rock sites in Northridge earthquake, 1994.
Source spectral model Dynamic corner frequency Stochastic synthesis
X.X. Tao X.D. Sun G.X.Wang
Professor, Dept. of Civil Engineering, Harbin Institute of Technology, Harbin. China PhD Candidate, Dept. of Civil Engineering, Harbin Institute of Technology, Harbin. China Professor, Dept. of Civil and hydraulic Engineering, Dalian University of Technology, Dalian, China
国际会议
14th World Conference on Earthquake Engineering(第十四届国际地震工程会议)
北京
英文
2008-10-12（万方平台首次上网日期，不代表论文的发表时间）