| 摘要 |
PROBLEM TO BE SOLVED: To provide a base-isolating apparatus simple in structure and durable for long use. SOLUTION: Since tops 1 of a go game stone type attenuate the propagation of seismic forces from a foundation to ground sills by rocking to the left and right in all directions, they can reduce vibrations propagating to the upper parts of a building. COPYRIGHT: (C)2006,JPO&NCIPI
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