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《Sichuan Building Science》 2010-01
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Simulation and checking of spatial correlative time histories of mult-support ground motion

LI Yonghua1,3,ZHU Qian2,LI Siming3 (1.School of Architecture and Civil Engineering,Nanchang University,Nanchang 330029,China;2.China Railway 24th Bureau Group Nanchang Construction Company,Nanchang 330002,China;3.School of Civil Engineering,Tongji University,Shanghai 200092,China)  
Based on design response spectrum of seismic design code,a simulation method for multi-support ground motion time history is developed.The relation between amplitudes spectrum,phase angles spectrum and power spectrum is established with random process theory.FFT techniques are used to improve synthetics efficiency of simulation.Because the methods of checking simulation seismic waves are focused on coherence mainly nowadays,a method of checking correlation is presented,and the importance of checking correlation is verified.Corresponding simulation and checking programs are designed in MATLAB,and an examples is used to verify the accuracy of the programs.
【Fund】: 国家自然科学基金创新研究群体项目(50621062)
【CateGory Index】: P315.9
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