Title:
Design Developments for Extradosed Prestressed Bridges
Author(s):
Steven L. Stroh
Publication:
Symposium Paper
Volume:
340
Issue:
Appears on pages(s):
159-178
Keywords:
aesthetics, bridges, construction, extradosed, fatigue, post-tensioning, proportioning parameters, stay cables
DOI:
10.14359/51725811
Date:
4/1/2020
Abstract:
This paper provides a description and design developments of the extradosed prestressed bridge concept. The development of the extradosed prestressed bridge concept is discussed, drawing upon the differences with a cable-stayed bridge type. Proportioning parameters used for initial concept development or verification are provided. This includes recommendations on span ranges, structure depth, tower height and multi-span applicability. Stay cable design considerations are discussed. These proportioning parameters are applied to a prototype design, the Pearl Harbor Memorial Bridge. Aesthetic opportunities for this new bridge type are discussed.
Related References:
1. Stroh, Steven L., 2012. On the Development of the Extradosed Bridge Concept, A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy, Department of Civil and Environmental Engineering, College of Engineering, University of South Florida, February 8, 2012.
2. Mathivat, J., 1988. Recent Developments in Prestressed Concrete Bridges, FHP Notes, Quarterly Journal of the Fédération Internationale de la Précontrainte, 1988/2, pp. 15-20
3. Ogawa, Atsuo; Kasuga, Akio; and Okamoto, Hiroaki, “Prestressed Concrete Extradosed Bridge – Odawara Blueway Bridge-“, Prestressed Concrete in Japan, A report of the XIII FIP Congress, Amsterdam, Holland, April, 1998(b), published by Japan Prestressed Concrete Engineering Association.
4. Kasuga, Akio, Extradosed Bridges in Japan, Structural Concrete, Thomas Telford and fib, 2006, No. 3, pp. 91-103
5. PTI, Recommendations for Stay Cable Design, Testing and Installation, 6th Ed., Post Tensioning Institute, PTI DC45.1-12, Published May 2012
6. FHWA, Feasibility of Standards for Segmental P/S Box Girder Bridges, Offices of Research and Development Report No. FHWA/RD-82/024 dated July 1982.
7. Kasuga, Akio, Shirono, Yoshiaki, Nishibe, Gou, and Okamoto, Hiroaki, 1994. Design and Construction of the Ordawa Port Bridge – The First Extradosed Prestressed Bridge, proceedings of the XIIth FIP Inter-national Congress, Washington, D.C., May 29-June 2, 1994, pp. F56-F62.
8. Komiya, Dr. Masahisa, 1999. A Characteristics and Design of PC Bridges with Large Eccentric Cables (PC Extradosed Bridges), Japan & Structure Institute, Inc., report dated 16 March 1999.
9. Podolny, Walter, Jr., 1994. “Cable-Stayed Bridges State-Of-The–Art in the United States”, Proceedings of A Seminar Series on Cable-Stayed Bridges held in Miami, Florida, October 17- 18, 1994. Edited by Ahmad H. Namini, University of Miami, Coral Gables, FL
10. Leonhardt, F. and Zelner, W., 1980. Cable-Stayed Bridges, International Association for Bridge and Structural Engineers, IABSE Surveys S-13/80, IABSE Periodica 2/1980, ISSN 0377-7251, pp. 21-48.
11. Structurae, web data retrieved September 2018 (http://en.structurae.de/structures/stype/?id=1002)
12. Menn, Christian, 1986. Prestressed Concrete Bridges, Birkhäuser Verla