Location

San Diego, California

Session Start Date

3-26-2001

Session End Date

3-31-2001

Abstract

This paper describes an analytical study with the purpose to gain some new understandings of the behavior of motion amplification in both horizontal and vertical components at liquefiable sites. By using a verified, effective-stress based nonlinear procedure, a series of numerical tests of a liquefiable sand deposit subjected to simultaneous action of horizontal and vertical shaking of various levels are carried out. To account for the characteristics of near-source motion, realistic array records of strong motion due to the Kobe earthquake of 1995 are employed to produce a variety of intensities of input motion in horizontal and vertical components. An extensive analysis of results for various loading cases is presented and, particularly, comparisons of the motion behavior and associated soil response between the case of horizontal input motion only and the cast of combination of horizontal and vertical input motion are made.

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

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

Meeting Name

Fourth Conference

Publisher

University of Missouri--Rolla

Publication Date

3-26-2001

Document Version

Final Version

Rights

© 2001 University of Missouri--Rolla, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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Mar 26th, 12:00 AM Mar 31st, 12:00 AM

Motion Amplification in Horizontal and Vertical Components at Liquefiable Sites

San Diego, California

This paper describes an analytical study with the purpose to gain some new understandings of the behavior of motion amplification in both horizontal and vertical components at liquefiable sites. By using a verified, effective-stress based nonlinear procedure, a series of numerical tests of a liquefiable sand deposit subjected to simultaneous action of horizontal and vertical shaking of various levels are carried out. To account for the characteristics of near-source motion, realistic array records of strong motion due to the Kobe earthquake of 1995 are employed to produce a variety of intensities of input motion in horizontal and vertical components. An extensive analysis of results for various loading cases is presented and, particularly, comparisons of the motion behavior and associated soil response between the case of horizontal input motion only and the cast of combination of horizontal and vertical input motion are made.