Influence of Gross-to-Cracked Section Moment of Inertia Ratio on Long-Term Deflections in GFRP-Reinforced Concrete Members
Publication: Journal of Composites for Construction
Volume 22, Issue 6
Abstract
An experimental study was conducted to evaluate the effect of the gross-to-cracked section moment of inertia ratio on the long-term deflection multiplier for glass fiber–reinforced polymer (GFRP) reinforced concrete beams subjected to sustained loading. Ten beams (eight GFRP-reinforced beams and two steel-reinforced beams) were maintained under a constant sustained service load for nearly three years. Long-term deflections were monitored on each beam over the duration of the test. Based on the results, the long-term deflection multiplier was found to be related to the gross-to-cracked section moment of inertia of the beam cross section. These trends were further confirmed by an examination of results published by other researchers and from an analytical study based on simple deflection models.
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Acknowledgments
The authors wish to thank Hughes Brothers, Inc. and Concrete Protection Products, Inc. for their donation of FRP materials to support this research study. The authors also thank the Villanova University Department of Civil and Environmental Engineering for its support of this research study.
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Published In
Journal of Composites for Construction
Volume 22 • Issue 6 • December 2018
Copyright
©2018 American Society of Civil Engineers.
History
Received: May 31, 2017
Accepted: Jun 12, 2018
Published online: Oct 11, 2018
Published in print: Dec 1, 2018
Discussion open until: Mar 11, 2019
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