Stiffness and Crack Behavior of Unbonded Posttensioned Concrete Beam Strengthened with Aluminum Alloy Plate

<div>Relationship between 1/<i>β</i>′ and 1/<i>β</i><sub>0</sub>.</div>

Advances in Civil Engineering

Figure 8: Stiffness and Crack Behavior of Unbonded Posttensioned Concrete Beam Strengthened with Aluminum Alloy Plate 