STRUCTURAL EFFECTIVENESS OF EXTERNALLY BONDED CFRP’s IN STRENGTHENING OF RC BEAMS

STRUCTURAL EFFECTIVENESS OF EXTERNALLY BONDED CFRP’s IN STRENGTHENING OF RC BEAMS
Author(s):
S.Rajesh, P.Suneetha
Keywords:
FRP
Abstract
The desirable characteristics of carbon fibre reinforced polymer (CFRP) composites such as their high stiffness-to-weight ratio, high environmental durability, high tensile strength, and ease of application have led to their use as an alternative to conventional materials used for shear and flexural strengthening of reinforced concrete (RC) members. Over the past two decades, many studies have been conducted in order to investigate the performance of FRP composites in civil engineering and structural applications. A primary concern of FRP structural strengthening systems is that FRP sheets may de-bond from the concrete surface at a force significantly lower than the strength of the FRP material. Debonding failures are often brittle and occur with little warning, therefore making them an undesirable failure mode. ACI 440.2R-08 mentions the use of transversely placed FRP sheets, or U-wraps, to delay debonding. There is, however, scarcity of research pertaining to strengthening beams in shear with FRP strips or continuous wraps.
Article Details
Unique Paper ID: 144527 Publication Volume & Issue: Volume 3, Issue 12 Page(s): 83 - 88
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