Concrete-Filled Steel Tubular Tied Arch Bridge System: Application to Columbus Viaduct
Publication: Journal of Bridge Engineering
Volume 17, Issue 1
Abstract
The tied arch bridge system provides a unique solution to the several challenges associated with the construction of railroad overpasses and water crossings, such as restricted vertical clearance, undesirable or impractical arrangement for intermediate piers, and extremely limited traffic control during construction. The paper presents the design and construction challenges pertinent to a novel concrete-filled steel tubular tied arch system that was first introduced in the Ravenna viaduct (53 m) and applied later to the Columbus viaduct (79 m). The main structural components of the Columbus viaduct are described in detail and the advantages of the system are summarized. The detailed analysis of the system at different construction stages and design checks of main components and connections under various loading conditions are discussed. Experimental investigations conducted on concrete-filled steel tubular arch and tie specimens to validate their theoretical capacities are demonstrated. The three-dimensional nonlinear finite element model developed to analyze the tie-to-arch connection and evaluate the lateral stability of arches is presented. Finally, the main construction procedures and challenges of the three tied arches of the Columbus viaduct are highlighted.
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Acknowledgments
This project was sponsored by the Nebraska Department of Roads (NDOR) and the University of Nebraska-Lincoln. The support of the technical advisory committee (TAC) members is gratefully acknowledged. The design team at the NDOR Bridge Division is also acknowledged; they spent considerable time and effort in coordinating this project, discussing its technical direction, and inspiring the university researchers. Acknowledgement also goes to the undergraduate and graduate students who participated in the different tasks of the project.
References
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Information & Authors
Information
Published In
Journal of Bridge Engineering
Volume 17 • Issue 1 • January 2012
Pages: 107 - 116
Copyright
© 2012 American Society of Civil Engineers.
History
Received: Aug 25, 2010
Accepted: Nov 29, 2010
Published online: Dec 1, 2010
Published in print: Jan 1, 2012
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