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   張華棟¹，  左中杰¹，  鄭佳明¹，  王  立²，  翟傳明¹
   （1 中電投工程研究檢測評定中心，北京 100840；2 中國電子工程設計院，北京 100840）

[摘要] 針對醫(yī)院CT機房CT設備運行時引起的振動問題，通過對其工作區(qū)域動力特性的測試，分析振動環(huán)境對工作舒適度及樓板結構安全的影響，并在此基礎上對CT機房樓板進行減振改造設計。采取在樓板下安裝可調節(jié)剛度調諧質量阻尼器( TMD)以及粘鋼加固措施，既保證了樓板的承載能力，又有效地減小了設備運行引起的振動。可為類似工程振動分析及控制設計提供參考和依據。
[關鍵詞] CT設備；動力特性；減振改造；TMD
中圖分類號：TU398    文獻標識碼：A  文章編號：1002-848X(2012) Sl-0605-04

Dynamic analysis and vibration reduction transformation design of CT room floor
Zhang Huadong¹,  Zuo Zhongjie¹,  Zheng Jiaming¹,  Wang Li²,  Zhai Chuanming¹
(1 C +E Center for Engineering Research Test and Appraisal, Beijing 100840, China; 2 China Electronics Engineering Design Institute, Beijing 100840, China)

Abstract: Aimed at the vibration caused by CT eqLupments in CT room of a hospital, through testing the dynanuc response in CT equipments working region, the impact of vibration circumstance on working comfort level and the floor safety was analyzed. The vibration reduction transformation design was made on this basis. By installing adjustable stiffness tuned mass dampers( TMD)  and using steel-bonded reinforcement measure, it could guarantee the floor's bearing capacity and reduce effectively the vibration caused by rumung equipment. Reference can be offered for similar project vibration analysis and manage design.
Keywords: CT equipments; dynamic response; vibration reduction transformation; TMD