VIBRATION CONTROL DEVICE OF BUILDING

摘要

PROBLEM TO BE SOLVED: To easily assure an original vibration control performance without being limited by the assurance of strength of a vibration control plate and to provide a generally constant vibration control performance even if the temperature varies by reducing a moment acting on each vibration control plate through a reduction in size of a vibration control structure while the vibration control performance of wind and earthquake with variable deformation of a building is satisfied. SOLUTION: A vibration control structural body 16 comprises an energy absorbing body 40 using a viscous elastic material absorbing vibration energy following the relative movement of both vibration control plates 34 and 36 disposed in an overlapped portion 38 between a first vibration control plate 34 and a second vibration control plate 36 folded up with each other. An upper projected part 18 and a lower projected part 20 opposed to each other are projected from an upper RC beam and a lower RC beam. A vibration control structural body 16 is installed between the upper and lower projected parts 18 and 20 so that one of the first and second vibration control plates 34 and 36 are formed integrally with the upper projected part 18 and the other is formed integrally with the lower projected part 20. A viscoelastic body less in temperature dependency is used on the energy absorbing body 40.