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Modeling Seismic Damage of Circular Reinforced Concrete Bridge Columns
Author(s) and Affiliation(s):
Andrew Taylor and William Stone, National Institute of Standards and Technology Gaithersburg, MD Ashraf El-Bahy and Sashi Kunnath, Department of Civil Engineering University of Central Florida, Orlando, FL
Principal Investigator:
Andrew Taylor
Federal Highway Administration, National Center for Earthquake Engineering Research, and California Department of Transportation
Research Start Date:
October 1994
Expected Completion Date:
September 1996
Research Objectives:
The long term objective of this project is to develop performance-based approaches to the seismic design, retrofit, and repair of reinforced concrete bridge columns. The objectives of the current task, Phase II, are to use the experimental data obtained in Phase I to evaluate and calibrate existing analytical damage models for reinforced concrete columns, derive improved damage models, and develop methods of using these damage models in practical design applications.
Expected Products or Deliverables:
The primary product of this study will be an analytical damage model for circular, flexure-dominated, reinforced concrete bridge columns which reflects damage caused by controlled laboratory loading and damage caused by random earthquake loading. Based on the findings of the damage model, a performance-based approach for design and evaluation of well-confined circular, flexure-dominated bridge columns will be proposed. It is anticipated that this model will be based on a comparison of damage capacity and damage demand.

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