Validation of non-stationary ground motion simulation method based on Hilbert transform
Zhang Yushan
Zhao Fengxin
Abstract：The non-stationary ground motion simulation method based on Hil-bert transform can generate a series of artificial ground motion samples that pos-sess the non-stationary characteristics similar to the given natural ground mo-tion.The effectiveness of this method in simulating the time-domain waveform features and the time-frequency distribution of energy of the natural ground mo-tion has been validated.In this paper,based on the elastic-plastic seismic re-sponses of ideal single-degree-of-freedom system,the effectiveness of this meth-od in simulating the impacts of the natural ground motion on structures are vali-dated.The results show that,the method can simulate well the engineering properties of natural ground motions,and the structural elastic-plastic seismic responses evoked by the ground motion samples generated by this method have the similar characteristics to the responses caused by natural ground motion.
Keywords：ground motionnon-stationarityHilbert transformelastic-plasti-cityseismic response
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：12( 686-697 )