| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a bridge having a vibration control function, allowing a vibration control mechanism to be easily installed at a low cost, and a construction method of the bridge. <P>SOLUTION: The bridge 10 having the vibration control function includes bridge girders 11 on the upper part of which a floor slab 12 is arranged; bridge piers 13 each supporting the bridge girder 11 by a pair of fulcrums arranged at a predetermined space in the longitudinal direction of the bridge girder 11; a viscoelastic body 14 joined to the lower face of a lower flange 11b of the bridge girder 11; and a plate 15 joined to the lower face of the viscoelastic body 14 and higher in rigidity than the viscoelastic body. When the bridge girder 11 bends, shearing deformation occurs to the viscoelastic body 14 held between the lower flange 11b and the plate 15, thereby absorbing vibrational energy to suppress the vibration of the bridge 10. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
