VIBRATION CONTROL METHOD AND VIBRATION CONTROL STRUCTURE FOR STEEL FRAME STRUCTURE, AND RACK TYPE WAREHOUSE USING THE SAME

摘要

PROBLEM TO BE SOLVED: To reliably restrain vibrations of a steel frame structure such as a rack of a rack type warehouse from being generated by an external force of an earthquake, a strong wind or the like, by a simple structure different from a conventional vibration control structure.SOLUTION: In a vibration control method and a vibration control structure, an upper fulcrum P1 is provided in an upper layer part of a steel frame structure S; a lower fulcrum P2 is provided in a position away by a predetermined distance from the steel frame structure S, on an installation surface G for the steel frame structure; a displacement amplification mechanism 1 with a built-in vibration control damper 2 is obliquely erected between the upper and lower fulcrums P1 and P2; and an attenuation action is added to the steel frame structure S through the utilization of bending deformation of the steel frame structure S to absorb vibrational energy of the steel frame structure S.SELECTED DRAWING: Figure 1