Artículos de revistas
Applicability of superelastic materials in seismic protection systems: A parametric study of performance in isolation of structures
Fecha
2017-08Registro en:
Soul, Hugo Ramon; Yawny, Alejandro Andres; Applicability of superelastic materials in seismic protection systems: A parametric study of performance in isolation of structures; IOP Publishing; Smart Materials & Structures; 26; 8; 8-2017; 1-16
0964-1726
CONICET Digital
CONICET
Autor
Soul, Hugo Ramon
Yawny, Alejandro Andres
Resumen
The dynamic response to different seismic inputs of an isolated structure disposed on a sliding layer and connected to the ground with a superelastic NiTi device was analyzed. The device allows wires of NiTi to be mechanically cycled by supporting externally applied tension/ compression forces exploiting both dissipative and self-centering capabilities associated with superelasticity. Simulations were carried out modifying the wires length and the structural mass. Both parameters were varied over two orders of magnitude with the aim of evaluating the type of response, the mitigation level that can be accomplished and the combination of parameters resulting in an optimal response. Results indicate that the proposed device is suitable for seismic protection of isolated structures and it is demonstrated that the protective action is more related with the restraining and self-centering properties of the NiTi superelastic wires than with its damping capacity.