The spatial variation of seismic ground motions denotes the differences in the seismic time histories at various locations on the ground surface this text focuses on the spatial variability of the motions that is caused by the propagation of the waveforms from the earthquake source through the . Spatial variation of seismic ground motions modeling and engineering applications advances in engineering series home the spatial variation of seismic ground motions has an important effect on the response of long structures lifelines such as pipelines tunnels dams and bridges . Zerva a 2000 spatial variability of seismic motions recorded over extended ground surface areas wave motion in earthquake engineering e kausel and gd manolis eds volume in the series advances in earthquake engineering wit press. Last decade on modeling spatially varying earthquake ground motion svegm and on determin ing its effect on the seismic response of large structures such as bridges pipelines dams and so on. Extra resources for spatial variation of seismic ground motions modeling and engineering applications and also applies to eqs 62 is that the fourier phases of the individual time series contribute not only to the phase spectrum of the smoothed estimator but also to its cross spectral amplitude
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