Effect of Displacement Histories on Lightly Confined Reinforced Concrete Bridge Columns

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Authors
Zimmer, Kylee
Advisor
Cheryl Conover
Marc Eberhard
John Scharf
Editor
Date of Issue
2004-04-01
Subject Keywords
Publisher
Citation
Series/Report No.
item.page.identifier
Title
Effect of Displacement Histories on Lightly Confined Reinforced Concrete Bridge Columns
Other Titles
Type
thesis
Description
Abstract
This research involved the study of seismic behavior of older reinforced concrete bridge columns. The column reinforcement was modeled on columns used in the state of Washington prior to the mid 1970s. These columns were characterized by small quantities of hoop steel, poor confinement, and non-ductile behavior. The goal of the research was to determine the effects of cyclic load history on the resistance of such columns to lateral loading. Four specimens have been tested in a previous phase of the work, but the displacement histories used did not differ enough to determine the relative importance of two possible characterizing parameters: maximum displacement and cumulative plastic displacement. The current phase of the work involves constructing and testing two additional columns, subjected to very different load histories, to clarify the role of each parameter. Further analysis will be needed to determine the influence of each parameter on the column resistance.
Sponsors
Degree Awarded
Bachelor's
Semester
Spring
Department
Mathematics, Engineering & Computer Science