Location

New York, New York

Session Start Date

4-13-2004

Session End Date

4-17-2004

Abstract

Zipingpu concrete faced rockfill dam is located at upstream of Min River in Yangtze River drainage basin. It is the main body of Zipingpu hinge who governs irrigating, water supplying, generating electricity, preventing flood and so on. The dam is 156 meters high and 663.8 meters long. And the normal water level is 148 meters high. Investigations indicate the peak ground accelerations is 0.26g and the characteristic period of the ground is 0.17 second. Three-dimensional seismic response analysis was carried out for this dam. Improved equivalent visco-elastic model was adopted in FEM analysis. And the method of equal node force was used in residual deformation analysis. In the analysis, the foundation was supposed to be a rigid body. Time histories of the response accelerations, stresses and displacements as well as their distributions were obtained. The residual deformation induced by the input earthquake excitation was also evaluated. The analysis is of much benefit to understanding of the performance of the dam to a strong earthquake.

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

International Conference on Case Histories in Geotechnical Engineering

Meeting Name

Fifth Conference

Publisher

University of Missouri--Rolla

Publication Date

4-13-2004

Document Version

Final Version

Rights

© 2004 University of Missouri--Rolla, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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Apr 13th, 12:00 AM Apr 17th, 12:00 AM

3-D Seismic Response Analysis for Zipingpu Concrete Faced Rockfill Dam

New York, New York

Zipingpu concrete faced rockfill dam is located at upstream of Min River in Yangtze River drainage basin. It is the main body of Zipingpu hinge who governs irrigating, water supplying, generating electricity, preventing flood and so on. The dam is 156 meters high and 663.8 meters long. And the normal water level is 148 meters high. Investigations indicate the peak ground accelerations is 0.26g and the characteristic period of the ground is 0.17 second. Three-dimensional seismic response analysis was carried out for this dam. Improved equivalent visco-elastic model was adopted in FEM analysis. And the method of equal node force was used in residual deformation analysis. In the analysis, the foundation was supposed to be a rigid body. Time histories of the response accelerations, stresses and displacements as well as their distributions were obtained. The residual deformation induced by the input earthquake excitation was also evaluated. The analysis is of much benefit to understanding of the performance of the dam to a strong earthquake.