Utilizzo di leghe a memoria di forma per la pretensione del rinforzo in FRP di elementi inflessi in c.a

Technological development in recent years has allowed the use of smart materials in civil engineering, as the Shape Memory Alloys (SMA). These materials change their physical and mechanical properties to changing environmental conditions. At this moment, the SMA are smart materials that can better exploited in civil engineering; their main properties are the superelasticity and shape memory. In the present study, where the SMA are used as active system, the effectiveness of the external reinforcement with FRP and SMA bending concrete elements is evaluated at the ultimate and service conditions.