Misplacement of Launching Bearings in PC Launched Bridges
Publication: Journal of Bridge Engineering
Volume 3, Issue 4
Abstract
In the incremental launch of a prestressed concrete (PC) bridge, the deck is a continuous beam that moves over fixed bearings. Their vertical misplacement causes secondary stresses that sometimes can be resisted by the deck, but that other times require expensive compensating devices. An original theoretical model permits an analysis of this phenomenon and the optimization of the interaction between torsion and distortion. This results in a more agile, faster analysis than finite-element analysis, which requires sophisticated, laborious models and does not distinguish between the two phenomena.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Hetenyi, M. (1971). Beams on elastic foundation, theory with application in the fields of civil and mechanical engineering. University of Michigan, Ann Arbor, Mich.
2.
Rosignoli, M.(1997). “Influences of the incremental launching construction method on the sizing of prestressed concrete bridge decks.”Proc. Instn. of Civ. Engrs., Struct. and Build., London, U.K., 122(3), 316–325.
3.
Rosignoli, M. (1998a). Launched bridges. ASCE Press, New York.
4.
Rosignoli, M.(1998b). “Serio River Bridge: Creep and incremental launch.”Proc., Instn. of Civ. Engrs., Struct. and Build., London, U.K., 128(1), 1–11.
5.
Wright, R. N., Abdel-Samad, S. R., and Robinson, A. R. (1968). “BEF analogy for analysis of box girders.”J. Struct. Div., ASCE, 104(7).
Information & Authors
Information
Published In
Journal of Bridge Engineering
Volume 3 • Issue 4 • November 1998
Pages: 170 - 176
Copyright
Copyright © 1998 American Society of Civil Engineers.
History
Published online: Nov 1, 1998
Published in print: Nov 1998
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.