Vertical seismic isolation using metamaterials made of superelastic shape memory alloys
Vertical seismic isolation using metamaterials made of superelastic shape memory alloys
Farsha Karazmay1 Peyman Narjabadifam2
1) student at university of BONAB
2) Professor at university of BONAB
Publication :
9th.International Congress On Civil Engineering, Architecture & Urban Development(9icsau.ir)
Abstract :
One of the well-known effective methods for reducing earthquake risks is implementing seismic
isolation. It is also required to isolate structures from the vertical excitations of earthquakes, especially
in near fault aeras and for light structures. A proposed solution involves utilizing advanced materials
to dissipate energy and to reduce stiffness. Vertical seismic isolation using metamaterials made of
superelastic shape memory alloys has been evaluated by modeling the isolator with SolidWorks and
simulating the behavior in ABAQUS software. The use of metamaterials made of superelastic shape
memory alloys practically provides lateral stability (due to the negative Poisson s ratio of the
metamaterial) and vertical restoring capability (due to the superelasticity of shape memory alloys and
the cellular arrangement of the metamaterials). This innovative approach presents a more effective
solution for seismic isolation.
Keywords :
vertical seismic isolation
metamaterials
shape memory alloys
damping
sustainability