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http://dx.doi.org/10.4334/JKCI.2002.14.6.922

Structural Behavior on the Externally Strengthened Bridge Deck with Glass Fiber Reinforced Polymer  

오홍섭 (한양대학교 토목ㆍ환경공학과)
심종성 (한양대학교 토목ㆍ환경공학과)
최장환 (한양대학교 토목ㆍ환경공학과)
Publication Information
Journal of the Korea Concrete Institute / v.14, no.6, 2002 , pp. 922-933 More about this Journal
Abstract
Since the deterioration of concrete bridge decks affect durability, safety, and function, structural rehabilitation of damaged concrete deck that was strengthened with Fiber Reinforced Polymer(FRP) is increasing the latest. But recent studies on the strengthened structures are focused on the static behavior, however only a few studies on the fatigue behavior are performed. In this study, static and fatigue behavior of strengthened deck were peformed on 11 deck specimens strengthened with sheet typed Glass Fiber Reinforced Polymer(GFRP) that were reinforced by two different strengthening methods for the static test. A amount of strengthening material in the each direction such as transverse and longitudinal was adopted experimental variables for the static test and also the stress level of the static maximum load are adopted for the fatigue test. By the results of the experimental study, with respect to the strengthened decks, the resistance effect of crack propagation and effect of stress distribution are improved. In addition, the rate of variation of compliance decreased.
Keywords
fatigue behavior; glass fiber reinforced polymer; strengthened bridge deck;
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