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Analysis of Earthquake Response at a Site With Uncertain Properties

by F. Nadim, Norwegian Geotechnical Inst, Norway,
L. H?rvik, Norwegian Geotechnical Inst, Norway,
H. Nordal, Norwegian Geotechnical Inst, Norway,
O. T. Gudmestad, Norwegian Geotechnical Inst, Norway,



Document Type: Proceeding Paper

Part of: Structural Safety and Reliability

Abstract:

The problem of earthquake response of a soil deposit with uncertain properties is studied in the paper. Various analysis procedures for handling the dynamic response of an uncertain system are considered. A special type of Monte Carlo simulation, known as Latin hypercube sampling, is shown to be very effective for probabilistic site response evaluation. Use of this method is demonstrated through a case study. A sensitivity analysis is performed to identify the parameters that contribute most to the uncertainties in the results. The relative importance of different parameters is shown to vary with frequency.

Subject Headings: Sensitivity analysis | Soil properties | Soil analysis | Soil dynamics | Probability | Earthquakes | Site investigation

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