Risk assessment of an interacting structure–soil system due to liquefaction

Steve Koutsourelakis; Jean H. Prevost; George Deodatis

doi:10.1002/eqe.125

journal article Jan 25, 2002

Risk assessment of an interacting structure–soil system due to liquefaction

Steve Koutsourelakis Jean H. Prevost George Deodatis

Earthquake Engineering & Structural Dynamics Vol. 31 No. 4 pp. 851-879 · Wiley

View at Publisher Save 10.1002/eqe.125

Abstract

AbstractThe present study deals with the non‐linear stochastic dynamic analysis of a soil–structure interacting system. The ultimate objective is to determine the risk of damage to the system due to liquefaction under a wide range of earthquake intensities. A Monte Carlo simulation approach is followed in conjunction with advanced finite element procedures. The stochastic spatial variability of soil properties and the randomness of the seismic excitation are taken into account in order to estimate the statistics of the response, measured in terms of uniform foundation settlement and tilting. Specifically, soil properties are modelled as non‐Gaussian random fields and seismic excitations as non‐stationary random processes. The probabilistic characteristics of the stochastic field modelling soil properties are established from in situ tests. The risk of damage to the soil–structure system due to liquefaction is assessed by establishing fragility curves, which are of paramount importance for risk assessment and management studies of such systems. Fragility curves express the probability of exceeding various thresholds in the response. The relative effect of the variability of various soil parameters on the variability of the response is also examined. Copyright © 2002 John Wiley & Sons, Ltd.

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Metrics

95

Citations

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References

Details

Published: Jan 25, 2002
Vol/Issue: 31(4)
Pages: 851-879
License: View

Authors

Funding

National Science Foundation Award: 9523092

Cite This Article

Steve Koutsourelakis, Jean H. Prevost, George Deodatis (2002). Risk assessment of an interacting structure–soil system due to liquefaction. Earthquake Engineering & Structural Dynamics, 31(4), 851-879. https://doi.org/10.1002/eqe.125

Risk assessment of an interacting structure–soil system due to liquefaction

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