Abstract: The present invention relates to a structural element known in the technical field as “tensairity”, which introduces as distinctive elements with respect to the known art: (i) ropes in the shape-memory alloy (SMA) with superelastic (SE) and shape memory (ME) behaviour; (ii) mechanical tensioners for the adjustment of the initial tension in the ropes; (iii) optionally a control apparatus (processor) is connected to electric circuits that induce flow of intensity variable current through the SMA wire ropes; (iv) optionally devices for real-time monitoring of the temperature and the level of tension in the SMA ropes; (v) optionally devices for real-time monitoring of the tensairity oscillations; (vi) optionally new structural geometries capable of sustaining static actions and multidirectional dynamics.