VIBRATION SUPPRESSION STRUCTURE AND ATOMIC FURNACE

PROBLEM TO BE SOLVED: To provide a vibration suppression structure or the like, which can move a vibration suppression structure or the like properly at an emergency such as an earthquake, while facilitating an access to a group of control rod driving devices.SOLUTION: A vibration suppression structure 12 is provided that suppresses vibration of a group of a control rod driving devices 11, in which the plurality of vertically extending control rod driving devices 11 are apposed in a horizontal plane. The vibration suppression structure 12 comprises: a bundle 21 for bundling the plurality of control rod driving devices 11 into a group of control rod driving devices 11; and a mass damper 22 provided in the bundle 21 to be attached to the group of the control rod driving devices 11.SELECTED DRAWING: Figure 2 【課題】一群の制御棒駆動装置へのアクセスを容易としつつ、地震等の緊急時において、制御棒駆動装置を好適に移動させることができる振動抑制構造物等を提供する。【解決手段】振動抑制構造物１２は、鉛直方向に延びて設けられる制御棒駆動装置１１を、水平面内において複数並べて配置された一群の制御棒駆動装置１１の振動を抑制するものであって、複数の制御棒駆動装置１１を束ねて一群の制御棒駆動装置１１とするバンドル２１と、一群の制御棒駆動装置１１に取り付けられるバンドル２１に設けられるマスダンパー２２とを備える。【選択図】図２