| 摘要 |
PROBLEM TO BE SOLVED: To provide a vibration control device-adjusting method which facilitates adjustment of a natural frequency of a vibration control device when it is mounted on a slab of a building construction, and to provide the vibration control device and a building floor structure. SOLUTION: A TMD (tuned mass damper) 100 or the vibration control device has a viscoelastic body 104 which is directly or indirectly mounted on an upper surface or a lower surface of the floor slab 16, and a steel plate 102 mounted on the viscoelastic body 104. Then, the natural frequency of the TMD 100 is matched with the natural frequency of the floor slab 16 by changing a size of the viscoelastic body 104 and changing a mounting area of the same. Thus, only by cutting the viscoelastic body 104, for instance, synchronization between the natural frequency of the TMD 100 and the natural frequency of the floor slab 16 is achieved, and therefore preparation of a single type of the viscoelastic body 104 and a single type of the steel plate 102 is sufficient, which leads to good utilization efficiency. Further, only by changing the size of the viscoelastic body 104, the natural frequency of the TMD 100 can be adjusted, which facilitates mounting of the TMD. COPYRIGHT: (C)2009,JPO&INPIT
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