Dynamical Experiment Research on New Seismic Isolation Bearings with SMA Wires
Deng Zongcai,Sun Hongjun,Liu Chunguo,Niu Kun,Deng Hongliang
Strategic Study of CAE ›› 2005, Vol. 7 ›› Issue (12) : 61 -68.
Dynamical Experiment Research on New Seismic Isolation Bearings with SMA Wires
As the aim of improving the utilization ratio of SMAs in SMA-rubber seismic isolation bearings, several different SMA-rubber seismic isolation bearings were designed, and energy dissipation experiments were done. The factors which affect the level stiffness, energy dissipation and equivalent damping ratio of SMA-rubber seismic isolation bearings including level displacement amplitude, level loading frequency and vertical load were studied. Result showed that the new SMA-rubber seismic isolation bearings have better hysteresis and energy dissipation capabilities. It provided the base to optimize the SMA-rubber seismic isolation bearings.
shape memory alloy / seismic isolation bearings / initial stiffness / hysteresis energy dissipation / equivalent damping ratio
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