Location

San Diego, California

Session Start Date

5-24-2010

Session End Date

5-29-2010

Abstract

A simple numerical deterministic approach for evaluating stochastic properties of structural systems with uncertain parameters under random seismic excitations (“double-random problem”) is presented. The method is based on the impulse response function method, the perturbation law and random central differential law. On the other hand, the equivalent linear model is used to account for the nonlinearity of soil. On the basis of the above random response analysis method, the aseismic reliability of earth-retaining wall is calculated and the analysis flow of dynamic reliability under the stationary random seismic action is also presented. From the above analysis, we can see that it is equally important both structural parameters and seismic excitations, the maximum value response including the displacement, moment and resultant force will increase with the heightening of reliability index and the aseismic design by linear model will result risk than non-linear model. The simulation analysis result verifies that the proposed method is applicable to the aseismic reliability analysis by contrast with the Richard-Elms displacement method and field actual measurements, which also provides a practical way for analyzing the aseismic reliability of other geotechnical engineering structures.

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics

Meeting Name

Fifth Conference

Publisher

Missouri University of Science and Technology

Publication Date

5-24-2010

Document Version

Final Version

Rights

© 2010 Missouri University of Science and Technology, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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May 24th, 12:00 AM May 29th, 12:00 AM

Analysis of Aseismic Reliability Considering the Uncertainties Both Structural Parameters and Earthquake Loadings for the Gravity Type Earth-Retaining Wall

San Diego, California

A simple numerical deterministic approach for evaluating stochastic properties of structural systems with uncertain parameters under random seismic excitations (“double-random problem”) is presented. The method is based on the impulse response function method, the perturbation law and random central differential law. On the other hand, the equivalent linear model is used to account for the nonlinearity of soil. On the basis of the above random response analysis method, the aseismic reliability of earth-retaining wall is calculated and the analysis flow of dynamic reliability under the stationary random seismic action is also presented. From the above analysis, we can see that it is equally important both structural parameters and seismic excitations, the maximum value response including the displacement, moment and resultant force will increase with the heightening of reliability index and the aseismic design by linear model will result risk than non-linear model. The simulation analysis result verifies that the proposed method is applicable to the aseismic reliability analysis by contrast with the Richard-Elms displacement method and field actual measurements, which also provides a practical way for analyzing the aseismic reliability of other geotechnical engineering structures.