Sensitivity of Lifeline Response to Models for the Spatial Incoherence of the Seismic Ground Motions

by Aspasia Zerva, Drexel Univ, Philadelphia, United States,



Document Type: Proceeding Paper

Part of: Engineering Mechanics

Abstract:

The sensitivity of the response of above-ground and buried lifelines to different models describing the spatial variability of the seismic ground motions is examined. It is shown that spatial variability models yielding partial correlation at low frequencies and decaying slowly with increasing frequency and separation distance will, generally, produce the highest contribution to the seismic response of the structures.

Subject Headings: Ground motion | Seismic tests | Seismic design | Lifeline systems | Sensitivity analysis | Seismic effects | Failure analysis

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