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SMA Negative Stiffness Damper
A negative stiffness damping device with double convex spherical surface and SMA cables is proposed. Its design principle and deformation mechanism are introduced. Theoretical derivation and finite element simulation were conducted to explore the relationship between lateral displacements and restoring forces. The results show that the new device can not only reduce the internal force and displacement response of the bridge, but also provide the self-resetting ability for the bridge, and also improve the displacement limit ability of the bridge in extremely strong or near-fault earthquakes.
SMA Negative Stiffness Damper
A negative stiffness damping device with double convex spherical surface and SMA cables is proposed. Its design principle and deformation mechanism are introduced. Theoretical derivation and finite element simulation were conducted to explore the relationship between lateral displacements and restoring forces. The results show that the new device can not only reduce the internal force and displacement response of the bridge, but also provide the self-resetting ability for the bridge, and also improve the displacement limit ability of the bridge in extremely strong or near-fault earthquakes.
SMA Negative Stiffness Damper
Chang, Hua-hui (author) / Cao, Sa-sa (author) / Ji, Hong-yan (author)
2020-01-01
1751173 byte
Conference paper
Electronic Resource
English
MULTIDIRECTIONAL HYSTERETIC DAMPER ENDOWED WITH NEGATIVE STIFFNESS
| European Patent Office | 2024