Title:
Modified Failure Criterion to Predict Ultimate Strength of Circular Columns Confined by Different Materials
Author(s):
Z. Canan Girgin
Publication:
Structural Journal
Volume:
106
Issue:
6
Appears on pages(s):
800-809
Keywords:
confinement; fiber-reinforced polymers; reinforced concrete; sheet; strength; tube
DOI:
10.14359/51663181
Date:
11/1/2009
Abstract:
This study addresses the extension of a failure criterion developed for rock data to small or near full-size circular concrete columns confined by different materials. Initially, a wide range database on small-scale specimens confined by fiber-reinforced polymer (FRP) sheets or tubes and analytical studies were evaluated to predict the ultimate compressive strength. Then, the reinforced concrete (RC) short-columns retrofitted with FRP jacket were examined through available data. The research further covers middle- or near fullscale columns confined by FRP composites and steel reinforcement. All of these estimations were conducted within a unified approach to the failure criterion. Thus, the ultimate compressive strength for different confining materials can be predicted easily and systematically.