Static and Fatigue Behavior of Short-Headed Studs Embedded in a Thin Ultrahigh-Performance Concrete Layer
Publication: Journal of Bridge Engineering
Volume 22, Issue 5
Abstract
In recent years, ultrahigh-performance concrete (UHPC) has been increasingly applied to orthotropic steel deck (OSD) bridges. The UHPC layer and the OSD are connected through short-headed studs. This paper studies the static and fatigue behavior of short-headed studs embedded in UHPC. Seven specimens were fabricated for push-out tests, three of which were subjected to static tests, and the other four were subjected to fatigue tests. The headed studs in these specimens had a low height-to-diameter ratio of 2.7. Both the static and fatigue tests showed that the specimens failed because of the fracture of the headed studs, whereas the UHPC layer did not develop appreciable damage. These observations reflected the fact that the short-headed studs developed full strength when embedded in UHPC. Based on the fatigue test results, a design S-N curve with 95% survival probability was proposed.
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Acknowledgments
The authors thank the following funders for their support: the National Natural Science Foundation of China (Grant 51178177), the Transportation Science and Technology Major Project sponsored by the Ministry of Transport of China (Grants 2011318494160 and 2013318798320), the Transport Agency of Zhejiang Province of China (Grant 2015J24), and the Scientific Research Innovation Program for Postgraduate Studies in the Hunan Province of China (Grant CX2011B150).
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Published In
Journal of Bridge Engineering
Volume 22 • Issue 5 • May 2017
Copyright
© 2017 American Society of Civil Engineers.
History
Received: Jul 6, 2016
Accepted: Nov 18, 2016
Published online: Feb 9, 2017
Published in print: May 1, 2017
Discussion open until: Jul 9, 2017
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