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    • 2. 发明专利
    • Vibration damping device of the Frames, and a clean room with the floor damping device Frames
    • JP5374113B2
    • 2013-12-25
    • JP2008275606
    • 2008-10-27
    • 株式会社竹中工務店
    • 宏和 吉岡良典 高橋隆之 阿部竜太 井上仁士 松下
    • E04B5/43E04B1/98E04H5/02F16F15/02
    • PROBLEM TO BE SOLVED: To reduce vibrations of a frame by a vibration control device of the frame which suppresses the vibrations of the frame, regarding a clean room which has the vibration control device installed on a floor section. SOLUTION: In the vibration control device 10 of the frame, a girder 12 is laid between columns 14. The end of the girder 12 is joined to the column 14, and a beam-column joint 28 is formed. A working member 30 for making an excitation force act on the girder 12 is mounted near the beam-column joint 28 by using the column 14 as a reaction receiver. The working member 30 comprises a piezoelectric element 16, a beam-side fixing implement 18, the axis line of which agrees with the displacement axis Z1 of the piezoelectric element 16, and a column-side fixing implement 20. In this case, a triangle is formed of the working member 30, the girder 12 and the column 14. A vibration sensor 22 is attached to the girder 12, and the vibrations of the girder 12 are detected and output to a controller 24. The controller 24 generates a vibration control waveform for canceling a vibrational waveform, and outputs it to a driver 26; and the driver 26 generates voltage output corresponding to the vibration control waveform, and outputs it to the piezoelectric element 16. The piezoelectric element 16 is expanded/contracted depending on the vibration control waveform, so as to make the excitation force act on the girder 12. COPYRIGHT: (C)2010,JPO&INPIT