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

Figure 9

The crack distributions at failure. (a) AL1, (b) AL2, (c) AL3, (d) AS1, (e) AS2, and (f) AS3.

(a)

(b)

(c)

(d)

(e)

(f)