Techno Press
Techno Press

Steel and Composite Structures   Volume 9, Number 2, April 2009, pages 103-118
Experimental study on repair of corroded steel beam using CFRP
Meiling Chen and Sreekanta Das

Abstract     [Full Text]
    It has been reported that more than thirty five percent of steel bridges in the USA are structurally deficient because of structural degradations. The degraded structures need either full replacement or rehabilitation such that they are able to provide the required services for a longer period of time. The cost for repair in most cases is far less than the cost of replacement. Moreover, repair method generally takes less time than replacement and also reduces service interruption time. Modern advanced composites have been used in aerospace and automotive fields since World War II. In the recent past, because of the high strength-to-weight ratio and high stiffness-to-weight ratio, these composite materials have been introduced to civil engineering infrastructures primarily for repair and rehabilitation of concrete structures. However, only a few preliminary studies on repair of corroded steel structures using theses composite materials are reported in the literature available in the public domain. Thus, in this study, a series of laboratory tests was undertaken to evaluate the effectiveness of this repair method using carbon fiber reinforced polymer composite. The paper discusses the test method and test results obtained from these tests.
Key Words
    steel beam; corrosion; repair; carbon fiber reinforced polymer composite; strength; stiffness; bond; ductility.
Meiling Chen and Sreekanta Das; Department of Civil and Environmental Engineering, University of Windsor, Windsor,Ontario N9B 3P4, Canada

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