2005, Volume 7, Issue 12
Strategic Study of CAE >> 2005, Volume 7, Issue 12
Dynamical Experiment Research on New Seismic Isolation Bearings with SMA Wires
College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100022, China
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Abstract
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.
Keywords
shape memory alloy ; seismic isolation bearings ; initial stiffness ; hysteresis energy dissipation ; equivalent damping ratio
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References
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