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RESEARCH ABSTRACT
 
FOURTH NATIONAL WORKSHOP ON BRIDGE RESEARCH IN PROGRESS:
Title:
Seismic Analysis of Bridges Including Soil-Structure Interaction Effects
Author(s) and Affiliation(s):
Raimondo Betti and Kaizan Huang Columbia University, New York, New York
Principal Investigator:
Ahmed M. Abdel-Ghaffar (USC)
Sponsor(s):
California Department of Transportation
Research Start Date:
October 1, 1995
Expected Completion Date:
April 31, 1996
Research Objectives:
In this study, the analysis of soil-structure interaction effects and of multiple support excitation on the seismic response of long-span cable-supported bridges are presented. The purpose of this study is to provide a better understanding of the dynamic performance of cable supported bridges under earthquake excitation, considering the spatial variability of the ground motion and the complex phenomena of soil-bridge interaction, so that such effects can be included in the design and rehabilitation process. Amplification of structural displacements and internal forces will prove that neglecting soil-structure interaction effects leads to inaccurate and unsafe design procedures.
Expected Products or Deliverables:
A technical report document of the research results.

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