S transform is one of the effective modern time-frequency analysis techniques. A new method of applying S transform to simulate artificial near-fault ground motions is presented. The artificial near-fault ground motions are simulated by combining filtered real or artificial far-fault ground motions by time–frequency filter with equivalent pulse, which can reflect the local characteristics of site and the pulse characteristics of near-fault ground motions. Numerical analysis shows the time-frequency characteristics of artificial near-fault ground motions are similar to that of parents ground motions, and the PSD in high frequency range is compatible with a target PSD of code for seismic design of buildings of China. The PGA of artificial near-fault ground motions are identical to the PGA corresponding to earthquake intensity in this code. So the artificial near-fault ground motions presented in the paper can be used for seismic analysis of the structures in near-fault seismic zone.


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    Title :

    Simulation of Artificial Near-Fault Ground Motions Based on the S-Transform


    Contributors:
    Fan, Jian (author) / Dong, Ping (author)


    Publication date :

    2008-05-01


    Size :

    404331 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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