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《Journal of Earthquake Engineering and Engineering Vibration》 2009-01
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Study on simplified method of simulation for multi-point ground motion

XU Moukui1,ZHANG Meng2,ZHANG Zengjun3(1.WHL Asia(Shanghai)Co.Limited,Shanghai 200002,China;2.Postdoctoral Station of Civil Engineering,Zhengzhou University,Zhengzhou 450001,China;3.NGS Real Estate(Group)Co.Limited,Shanghai 200333,China)  
A simulation method for spatial correlated multi-point ground motion is proposed.By simplification of cross power spectral density matrix,only decomposition of lagging coherent density matrix is required instead of Cholesky decomposition of cross power spectral density matrix.Thus complex matrix computation is avoided and the simulation efficiency is improved.A corresponding program has been compiled using the method and an example is drawn.
【Fund】: 河南省教育厅科技攻关项目(2008A560015)
【CateGory Index】: P315
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