Application of Suspension Bridges Stiffened by Prestressed Concrete Slabs in China
Publication: Journal of Bridge Engineering
Volume 12, Issue 2
Abstract
Four suspension bridges stiffened by prestressed concrete slabs were designed and constructed on highways in southwestern mountainous areas of China. These bridges are the first applications of its kind in China. This paper discusses the site condition, adaptability, and design and construction features of these bridges. These bridges have single suspension spans between 278 and and deck width between 14.4 and . The longitudinal distance between hangers is only , which is relatively small for this bridge type, and there are only two lanes. The dual direction prestressed concrete slabs are deep, and its wind blocking area is relatively small. Dynamic analysis and wind tunnel tests verify that the wind resistance requirements are easily satisfied.
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Acknowledgments
The writers would like to acknowledge Miss Congmin Su of BRDI of China and Dr. Lubin Gao, P.E., of SAS Suite LLC, for their comments and contribution to this paper.
References
Lei, J. Q., Zheng, M. Z., and Xu, G. Y. (2002). Suspension bridge design, The People’s Communication Press, Beijing, 358–382.
Yang, J., and Hsu, G. Y. (1995a). “Design and seismic problems of PC stiffened girder for Shantou Bay suspension bridge.” Bridge into 21st century, The Hong Kong Institution of Engineers, Hong Kong, 789–796.
Yang, J., and Xu, G. Y. (1995b). “Design of PC box girder for Shantou Bay suspension bridge.” Bridge construction, Bridge Construction Compiling House, Wuhan, China, 8–12.
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© 2007 ASCE.
History
Received: Jul 14, 2004
Accepted: Jan 12, 2006
Published online: Mar 1, 2007
Published in print: Mar 2007
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