Prediction of Transfer Lengths Inclusive of Conventional and High-Strength Strands
This article has been corrected.
VIEW CORRECTIONPublication: Journal of Structural Engineering
Volume 146, Issue 9
Abstract
Twelve concrete prisms pretensioned with 2,400-MPa strands were fabricated to investigate the effects of initial prestress (), concrete compressive strength at prestress release (), and the spacing of the lateral confining reinforcement () on the transfer length. Test results showed that the transfer length increased with an increase in and with decreases in and confinement level. A theoretical model incorporating rigid–linear local bond-slip relationships was developed and validated by its reasonable predictions of the distributions of the measured concrete strains in the transfer region. Based on the theoretical model, predictive formulas of transfer length were derived for both conventional and high-strength strands.
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Acknowledgments
This research was supported by a Chung-Ang University research grant in 2019.
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Published In
Journal of Structural Engineering
Volume 146 • Issue 9 • September 2020
Copyright
©2020 American Society of Civil Engineers.
History
Received: Nov 1, 2018
Accepted: Apr 8, 2020
Published online: Jun 29, 2020
Published in print: Sep 1, 2020
Discussion open until: Nov 29, 2020
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