- 摘 要
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王倩1，張志強2，夏冬平3，楊康2，周晨2
（1 合肥工業(yè)大學土木與水利工程學院， 合肥 230009； 2 東南大學土木工程學院， 南京 210096；
3 南京市建筑設計研究院有限責任公司， 南京 210005）
［摘要］針對某鋼結構登機橋的人致振動減振控制，采用結構減振控制理論，選取調頻質量阻尼器(TMD)對結構進行人群荷載作用下的振動控制與舒適度設計。采用有限元分析軟件MIDAS/Gen建立結構三維分析模型，對多種人群荷載工況輸入下減振前后樓蓋結構的動力響應進行時程分析；對大跨度樓蓋動力特性與安裝TMD前后的人群荷載下最大加速度響應進行現(xiàn)場振動測試，對減振前后結構的實測加速度響應進行對比分析。結果表明，采用TMD減振方案并根據(jù)實測結構動力特性調整其剛度可以使結構滿足人群荷載作用下的舒適度要求，TMD起到了良好的減振效果。
［關鍵詞］減振控制； TMD； 人致振動； 舒適度設計； 振動測試
中圖分類號：TH353+.1，TU3933文獻標識碼：A文章編號：1002-848X(2016)01-0019-05
Study on human-induced vibration control of a large-span terminal aerobridge
Wang Qian1, Zhang Zhiqiang2, Xia Dongping3, Yang Kang2, Zhou Chen2
(1 School of Civil and Hydraulic Engineering,
2 School of Civil Engineering,
3
Abstract:In order to control the human-induced vibration of a steel structure terminal aerobridge, structural vibration control theory was adopted and tuned mass damper (TMD) device was used to control vibration under human loading and carry out comfort design. The three-dimensional analysis model of the structure was developed based on the finite element analysis software MIDAS/Gen, and time-history analyses were carried out on dynamic responses of floor structures with different human loading working condition inputs before and after vibration control. Field vibration tests were conducted on the dynamic properties of large-span floor and the maximum acceleration responses under human loading before and after TMD installation. The acceleration responses of the structure before and after vibration control were compared and analyzed. Results show that the structure meets comfort requirements under the human loading when TMD vibration control scheme is adopted and TMD stiffness is adjusted according to the actual measured structural dynamic properties.TMD has good vibration control effect.
Keywords:vibration control; TMD; human-induced vibration; comfort design; vibration test
*國家自然科學基金項目（51278106），江蘇省建設廳基金“新型建筑結構體系關鍵技術研究與示范”（7605000023）。
作者簡介：王倩，碩士研究生，Email:wangqian199075@163.com。
