| 摘要 |
To set up such a constitution that no compression forces act on braces, alternatively, to set up a constitution that makes it possible to make compression forces to be applied to braces smaller extremely; and to provide a vibration control device for beam-and-column frame that can demonstrate high vibration control performance. A rotary supporting member 40 supports a parallel member 30 rotatably with respect to an upper beam 13. A first brace 60 connects an opposite-end side of the parallel member 30 with an opposite-end side of a lower beam 14. A second brace 70 connects another opposite-end side of the parallel member 30 with another opposite-end side of the lower beam 14. An intersection position of the first brace 60 with the second brace 70 is positioned more adjacent to a side of the upper beam 13 than where an intermediate position between the upper beam 13 and the lower beam 14 is present. The resulting vibration control device includes damper members (80, 90) being disposed respectively so as to be interposed between the parallel member 30 and the upper beam 13, connecting the parallel member 30 with the upper beam 13, and being disposed to make a pair at least on both sides each of which is separated away from the rotary supporting member 40 to interpose the rotary supporting member 40 therebetween. |
