Full-Scale Test and Simulation on Flexural Behavior of Dovetail-Shaped Reactive Powder–Concrete Wet Joint in a Composite Deck System
Publication: Journal of Bridge Engineering
Volume 23, Issue 8
Abstract
Composite deck systems composed of a steel deck and a reactive powder–concrete (RPC) layer are widely used in long-span bridges because of their satisfactory crack resistance and fatigue resilience. However, durability problems usually appear at the interface between the wet joint and the precast RPC layer. In the present study, a dovetail-shaped RPC wet joint is proposed to improve crack resistance. An experimental study was conducted to describe the mechanical behavior of the dovetail-shaped RPC wet joint under a negative moment, including crack development, strain distribution, and load–deflection response. A finite-element model validated with the experimental results was built in a finite-element program for supplementary parametric analysis. The reinforcement ratio and the inclined angle of the dovetail-shaped area were quantitatively investigated. Design parameters are recommended according to the parametric analysis.
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Acknowledgments
This work was completed under the support of the Scientific Research Fund of the Institute of Engineering Mechanics, China Earthquake Administration (Grant 2017D02), the Fundamental Research Funds for the Central Universities (Grant 2682017CX002), and the Natural Science Foundation of China (Grant 51708466).
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Information & Authors
Information
Published In
Journal of Bridge Engineering
Volume 23 • Issue 8 • August 2018
Copyright
© 2018 American Society of Civil Engineers.
History
Received: Aug 30, 2017
Accepted: Feb 16, 2018
Published online: May 31, 2018
Published in print: Aug 1, 2018
Discussion open until: Oct 31, 2018
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