Development Length Tests of Full-Scale Prestressed Self-Consolidating Concrete Box and I-Girders
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Volume 18, Issue 11
Abstract
Self-consolidating concrete (SCC) is a highly workable concrete with tremendous potential to reduce the production time and cost of precast members. Institutions in Japan, Europe, and the United States have successfully utilized SCC in large-scale applications, particularly in bridges. However, lack of experimental data has hindered SCC’s implementation in prestressed design. This paper reports the findings of a study investigating the development length of steel strands in SCC full-scale prestressed bridge girders. Flexural tests are conducted on two 8.5-m-long box girders and two 14.6-m-long I-girders cast with SCC to determine the development length of their 12.7-mm-diameter prestressing steel strands. Experimental results are compared with requirements of the American Concrete Institute and AASHTO. Results are also compared with analytical expressions for development length proposed in the literature.
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Acknowledgments
This work was supported by the IDOT and the Illinois Center for Transportation under project no. R27-56.
References
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Published In
Journal of Bridge Engineering
Volume 18 • Issue 11 • November 2013
Pages: 1209 - 1218
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Jul 1, 2011
Accepted: Dec 21, 2011
Published online: Dec 23, 2011
Published in print: Nov 1, 2013
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