SEISMIC ISOLATION BEARING FOR BRIDGE AND BRIDGE USING THE SAME
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United States of America Patent
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May 16, 2019
app pub date -
Apr 10, 2017
filing date -
Apr 10, 2017
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Abstract
A seismic isolation bearing for a bridge includes rubber plates, steel plates and a laminated body; a hollow portion provided inside the laminated body in a hermetically closed manner; and a lead plug filled densely in the hollow portion. The lead plug has a pair of rectangular faces extending in a bridge axis orthogonal direction and opposed to each other in a bridge axis direction and a pair of rectangular faces extending in the bridge axis direction and opposed to each other in the bridge axis orthogonal direction.
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