Study on Strengthing of Reinforced Concrete Beams using Externally Bonded Aluminium Alloy Plates

Structural Engineering

The major problem in the reinforced concrete beam is no longer to be considered as safe due to various reasons such as temperature variation, chloride attacks etc., so this RC beams are either need to be replaced or strengthened. Recently developed high strength aluminium alloy have the potential to overcome some of these drawbacks by providing strengthening to the reinforced concrete beam. Compared to steel and FRP, aluminium alloy have superior properties such as ductility, good thermal and corrosion resistance. Externally bonded reinforced concrete beam with epoxy-bonded aluminium alloy plates were tested to failure using a symmetrical two point concentrated static loading system. A beam with 2 layers and 3 layers of aluminium alloy plates are externally bonded with the use of epoxy resin and the conventional beam is casted and tested under two point loading system, and analyzed by the ANSYS Software. The results clearly show that, the 3 layers of externally bonded aluminium alloy plates significantly increases the strength than the conventional beam.

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