Rational Design Approach for the Instantaneous and Time-Dependent Serviceability Deflections and Crack Widths of FRC and UHPFRC Continuous and Simply Supported Beams
Publication: Journal of Structural Engineering
Volume 145, Issue 11
Abstract
Novel mechanics-based closed-form solutions for long- and short-term serviceability deflections and crack widths of fiber-reinforced concrete (FRC) and ultra-high-performance fiber-reinforced concrete (UHPFRC) beams are presented. These solutions incorporate the bond properties from bond tests directly and as such obviate the need for constant bond stress simplification and consequently the need for member calibration as is commonly required in code approaches. The closed-form solutions are validated on 12 simply supported and 4 continuous UHPFRC beams as well as 10 normal-strength FRC beams with good correlation. A design example is also included for a UHPFRC T-beam demonstrating application of the solutions.
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Acknowledgments
This material is based on work supported by the Air Force Office of Scientific Research (Award No. FA2386-16-1-4098) and the Australian Research Council Discovery Project (Project No. 190102650).
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Published In
Journal of Structural Engineering
Volume 145 • Issue 11 • November 2019
Copyright
©2019 American Society of Civil Engineers.
History
Received: Apr 10, 2018
Accepted: Mar 13, 2019
Published online: Sep 11, 2019
Published in print: Nov 1, 2019
Discussion open until: Feb 11, 2020
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