Lokuge, W. P. and Setunge, S. and Sanjayan, J. G. (2011) Stress-strain model for high strength concrete confined by FRP. In: ACMSM 21: Incorporating Sustainable Practice in Mechanics of Structures and Materials, 7-10 Dec 2010, Melbourne, Australia.
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Ductility of High Strength Concrete (HSC) columns can be increased by lateral confinement. The conventional confinement with steel reinforcement may not always be adequate to provide the ductility levels desired by the engineer. The lateral confinement by FRP can provide significantly higher confinement stresses than the conventional steel reinforcement, and convenient for repair applications. Confining pressure applied by FRP is a function of the lateral strain of concrete. Therefore information of axial stress, axial strain and lateral strain relationships of concrete is fundamental in the design of confinement. Many existing models are based on test results with low confining pressures which are not suitable for modelling FRP confined concrete. The authors present a model in this paper which is suitable for use in designing FRP confinement of concrete. Model results are compared with experimental results of FRP confined columns. The results demonstrate the model is suitable for this use.
|Item Type:||Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)|
|Additional Information:||Submitted version deposited in accordance with the copyright policy of the publisher.|
|Uncontrolled Keywords:||high strength concrete; FRP confinement; stress-strain behaviour|
|Depositing User:||Dr Weena Lokuge|
|Date Deposited:||14 Feb 2011 02:26|
|Last Modified:||03 Jul 2013 00:27|
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