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An Experimental Study on the Flexural Behavior of RC Beams Strengthened with Near-Surface-Mounted CFRP Strips  

Lim, Dong-Hwan (동서대학교 토목공학)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.12, no.6, 2008 , pp. 89-96 More about this Journal
Abstract
The purpose of this study is to investigate the flexural strengthening effectiveness for the beams reinforced with NSM CFRP strips. To accomplish this objective, concrete T beams were made and tested. From this study, it is found that the flexural stiffness and strength of the beams reinforced with NSM strips were significantly improved compared to the beams without CFRP strip. The maximum increase of flexural strength was 247%. Failure of the beam reinforced with NSM was initiated by a part of separation of NSM strips along the longitudinal direction, and the second failure of strips was investigated. After the first rupture of the NSM strips, the load dropped suddenly and the second rupture was succeeded. This result shows that a perfect composite reaction with NSM strips and concrete is possible in the beam reinforced with NSM CFRP strips the NSM strips and Near surface mounted(NSM) is one of the most recent and promising strengthening techniques for reinforced concrete structures.
Keywords
Near surface mounted(NSM); CFRP; Load-displacement behavior; Failure modes;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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