Abstract
A short-span highway bridge system composed of steel tee sections embedded in a concrete deck slab during fabrication of the member was developed for the Pennsylvania Department of Transportation. The connection between the concrete deck slab and steel tee sections consists of transverse reinforcing bars passing through drilled holes located near the top of the steel tee stems and cast into the deck slab. This paper presents the design and fabrication approach for the composite steel tee concrete deck bridge system. A full-scale prototype is fabricated in accordance with the design and fabrication approach, and the approach is verified through monitoring and destructive testing of the prototype. The prototype is load tested to examine its performance relative to AASHTO service and strength requirements. The full-scale prototype results indicate that the design and fabrication approach produces a composite steel tee concrete deck bridge system that satisfies AASHTO limit state criteria.
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Acknowledgments
The work conducted herein was supported through research funding from the Pennsylvania Department of Transportation through agreement E03134 Work Order 14. The authors are grateful to collaborators involved in the development, design, fabrication, and testing of the prototype STCD modules. Specifically, the authors acknowledge Tom Macioce, Heather Sorce, and Lauren Rogers of PennDOT; Scott Eshenaur and Phil Ritchie of Modjeski and Masters; Bob Slaw at Slaw Precast; and High Steel Structures. The authors also acknowledge William Koller of PennDOT, who initiated the research effort. The steel shapes used in the STCD modules were rolled by Nucor-Yamamoto Steel Company (Blytheville, Arkansas) and fabricated by High Steel Structures (Lancaster, Pennsylvania). The precast operations were conducted by Slaw Precast (Lehighton, Pennsylvania).
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Published In
Journal of Bridge Engineering
Volume 26 • Issue 1 • January 2021
Copyright
© 2020 American Society of Civil Engineers.
History
Received: Apr 2, 2020
Accepted: Jul 27, 2020
Published online: Oct 23, 2020
Published in print: Jan 1, 2021
Discussion open until: Mar 23, 2021
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