An innovative tying technique based on the use of shape memory alloys has been developed. It entails the interconnection of outside masonry walls and floors with shape memory alloy devices that, exploiting the highly non-linear super-elastic behaviour of said alloys, can control the forces transmitted to the wall while allowing the wall a certain leeway of deformation. The force vs. displacement behaviour of the devices can be easy adapted to different design requirements owing to the high modularity of elements composition. Shaking table tests on models of historical brick masonry walls indicate that by using shape memory alloy devices instead of steel bars to tie walls there is significant improvement in seismic behaviour.
The Influence of Shape Memory Alloy Ties on the Seismic Behaviour of Historical Masonry Buildings
Martelli, A.;
2000-05-01
Abstract
An innovative tying technique based on the use of shape memory alloys has been developed. It entails the interconnection of outside masonry walls and floors with shape memory alloy devices that, exploiting the highly non-linear super-elastic behaviour of said alloys, can control the forces transmitted to the wall while allowing the wall a certain leeway of deformation. The force vs. displacement behaviour of the devices can be easy adapted to different design requirements owing to the high modularity of elements composition. Shaking table tests on models of historical brick masonry walls indicate that by using shape memory alloy devices instead of steel bars to tie walls there is significant improvement in seismic behaviour.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
