Chapter
Apr 26, 2012
Monitoring of a FRP-Wrapped Balsa Wood Bridge Deck with Fiber Optic Sensors
Authors: C. S. Cai [email protected], Shuang Hou [email protected], and Walid Alaywan [email protected]Author Affiliations
Publication: Earth & Space 2008: Engineering, Science, Construction, and Operations in Challenging Environments
Abstract
A FRP-wrapped Balsa wood bridge deck system is under development in Louisiana, and the bridge long-term performance will be monitored using fiber optic sensors throughout its service. First, the instrumentation plan of the long-term monitoring system of the bridge is introduced in this paper; then a novel moisture monitoring method using FBG sensors is put forward, in which the expansion induced by moisture in the FRP wrapped Balsa wood is measured to indicate its moisture contents. A test on FRP wrapped Balsa wood specimen was conducted in which moisture penetration process was monitored through the proposed method. The feasibility of the proposed method was validated.
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© 2008 American Society of Civil Engineers.
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Published online: Apr 26, 2012
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Louisiana State University, Baton Rouge, LA 70803. E-mail: [email protected]
Louisiana State University, Baton Rouge, LA 70803,. Email: [email protected]; Dalian University of Technology, Dalian, 116024, China.E-mail: [email protected]
Louisiana Transportation Research Center, Baton Rouge, LA 70808. E-mail: [email protected]
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