Abstract
Base isolation provides a very effective passive method of protecting the structure from the hazards of earthquakes. The proposed smart isolation system combines the laminated rubber bearing with the device made of shape memory alloy (SMA). The constitutive law for superelastic material is extended to describe a hardening of the stress-strain relation of SMA at large strain levels. The smart base isolation utilizes the different responses of the SMA at different levels of strain to control the displacements of the rubber bearing at various excitation levels. At the same time the hysteresis of the alloy is used to increase the energy dissipation capacity. The performance of the smart base isolation is compared with the responses of laminated rubber bearing with and without lead core to quantified the benefits of applying SMA for isolation of three story building.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 122-133 |
| Number of pages | 12 |
| Journal | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 3043 |
| DOIs | |
| State | Published - May 23 1997 |
| Externally published | Yes |
| Event | Smart Structures and Materials 1997: Smart Systems for Bridges, Structures, and Highways - San Diego, United States Duration: Mar 3 1997 → Mar 6 1997 |
Keywords
- Base isolation
- Buildings
- Earthquake excitation
- Shape memory alloys
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering