Retrofit of the Louisa-Fort Gay Bridge Using CFRP Laminates

Choo, C. C.; Zhao, Tong; Harik, Issam E.

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Retrofit of the Louisa-Fort Gay Bridge Using CFRP Laminates

2007-06-01
By Choo, C. C. ; Zhao, Tong ; Harik, Issam E.

File Language:

English

Details

Creators:

Choo, C. C. ; Zhao, Tong ; Harik, Issam E.
Corporate Creators:

University of Kentucky Transportation Center
Corporate Contributors:

Kentucky. Transportation Cabinet
Subject/TRT Terms:
Publication/ Report Number:

KTC-07-08/FRT118-03-1F
Resource Type:

Tech Report
Geographical Coverage:

Kentucky ; United States
Corporate Publisher:

University of Kentucky Transportation Center
Abstract:

This report details the processes pertaining to the repair and strengthening of the Louisa-Fort Gay Bridge, Lawrence County, KY, using advanced composite materials. Site inspections revealed flexural cracks in the reinforced concrete girders of the continuous bridge structure. To determine the cause of these cracks, an evaluation was initiated based on vehicle classification and truck weight data. The results confirmed that certain reinforced concrete girders were stressed beyond the limits allowed by the AASHTO Code. A retrofit scheme using carbon fiber reinforced polymer (CFRP) composite was devised and the amount of CFRP laminates needed for flexural strengthening was determined from moment-curvature analyses. Retrofitting work began in September of 2003, and the project was completed in October of 2003. Crack gauges were installed at the affected areas to monitor the effectiveness of the retrofit. The bridge was inspected on a number of occasions and, as of September 28 2006, no movement in the crack gauges has been observed.
Format:

PDF
Funding:

FRT118
Download URL:

https://rosap.ntl.bts.gov/view/dot/21678/dot_21678_DS1.pdf
File Type:

[PDF - 556.40 KB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:045a80a79a7f2a31354e6336e3e581bc6e763fe67d77c32c894175558d738717defc2a5975da4482170cb0693cd1992195516e4d3fc427e541479258cc5201ce

File Language:

English

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