Triangle steel hysteretic device
The TRSH device, shown in Fig. 8a, is an easy to dimension and manufacture steel element that is subjected to bending. TRSH devices are combined with flat surface sliders or elastomeric bearing to provide base isolation with defined hysteretic energy dissipation. Tests showed a very robust behaviour and satisfying post-elastic stiffness (Fig. 8b), which is the indication of re-centring behaviour. The system was improved by means of testing and numerical calculations within the 5th FP LESSLOSS-project.