Inspection of Luling Bridge Cable Stays: Case Study
Publication: Journal of Construction Engineering and Management
Volume 129, Issue 2
Abstract
Most cable-stayed bridges in the United States have been built in the last 30 years. As the number of existing cable-stayed bridges increase, one problem continues to arise—how to inspect the cable stays for corrosion and deterioration. An inherent difficulty in developing an inspection procedure for cable-stayed bridges is that each cable-stayed bridge is unique in its cable configuration. The Louisiana Department of Transportation and Development (LADOTD) has built two separate trolleys to aid their inspectors and maintenance crew with visual inspection and maintenance of the cable stays on the Luling Bridge over the Mississippi River in St. Charles Parish near New Orleans, Louisiana. With the use of the two trolleys, LADOTD bridge inspectors are able to inspect the cable stays at hands-on distances. The cable-stay inspection procedure adopted by the LADOTD is inexpensive and time efficient, and it minimally impacts bridge traffic. This manuscript reviews the inspection procedure adopted by the LADOTD to inspect the cable sheathing at the Luling Bridge.
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References
Billington, D. P., and Nazmy, A.(1991). “History and aesthetics of cable-stayed bridges.” J. Struct. Eng., 117(10), 3103–3134.
“Constructing cable-stayed orthotropic bridge.” (1981). Construction News, Apr. 17, 22–25.
Soast, A. (1986). “Trolleys cut cost of inspecting bridge cables.” Engineering News Record, May 15, 58.
Stahl, F. L., and Gagnon, C. P. (1996). Cable corrosion in bridges and other structures, ASCE, New York.
Thibodeaux, R. (1982). “Luling Bridge support cables finally installed.” The Times-Picayune/The States Item, June 11, 1:17.
Information & Authors
Information
Published In
Journal of Construction Engineering and Management
Volume 129 • Issue 2 • April 2003
Pages: 226 - 230
Copyright
Copyright © 2003 American Society of Civil Engineers.
History
Received: Sep 28, 2001
Accepted: Apr 2, 2002
Published online: Mar 14, 2003
Published in print: Apr 2003
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