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|Title:||Long-term deflections of reinforced concrete beams externally bonded with FRP system|
|Authors:||Tan, K.H. |
Fiber reinforced polymers
|Citation:||Tan, K.H., Saha, M.K. (2006). Long-term deflections of reinforced concrete beams externally bonded with FRP system. Journal of Composites for Construction 10 (6) : 474-482. ScholarBank@NUS Repository. https://doi.org/10.1061/(ASCE)1090-0268(2006)10:6(474)|
|Abstract:||External bonding of fiber-reinforced polymer (FRP) composite laminates to the tension soffit of reinforced concrete beams has become a popular method for flexural strengthening. However, the long-term performance of FRP-bonded beams under service loads is still a concern. This study was therefore aimed at investigating, both analytically and experimentally, the long-term deflection characteristics of FRP-bonded beams under sustained loads. Nine reinforced concrete beams, six of which were externally bonded with glass FRP composite laminates, were subjected to sustained loads for 2 years. The test parameters were the FRP ratio and sustained load level. The long-term deflections of the beams were reduced 23 and 33% with a FRP ratio of 0.64 and 1.92%, respectively. The total beam deflections were accurately predicted by the adjusted effective modulus method, and overestimated by about 20% by the effective modulus method. © 2006 ASCE.|
|Source Title:||Journal of Composites for Construction|
|Appears in Collections:||Staff Publications|
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