Seismic isolation bearing
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United States of America Patent
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-
Feb 4, 2014
Grant Date -
Jun 13, 2013
app pub date -
Jun 14, 2012
filing date -
Dec 9, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A seismic isolation bearing has a lower plate and an upper plate separated by a slider. The lower plate has an upward facing concave surface. The upper plate has a downward facing concave surface. The slider includes a first member and a second member separated by a shock absorbing pad. The first member has an upper convex surface that slides along the concave surface of the upper plate. The second member has a lower convex surface that slides along the concave surface of the lower plate. In the event of an earthquake, the lower plate and the upper plate are intended to move relative to each other via the slider to dissipate the horizontal seismic energy. In addition, the shock absorbing pad can deform to absorb the vertical seismic energy. Thus, the seismic isolation bearing can increase its ability to isolate seismic energy.
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