Flexural Behaviour of Unbonded Posttensioned Concrete Beam Strengthened with Aluminium Alloy Plates

Figure 12

The curves of load slip of the beams. (a) AL1, (b) AL2, (c) AL3, (d) AS1, (e) AS2, and (f) AS3.

(a)

(b)

(c)

(d)

(e)

(f)