換流站閥廳結構地震效應動力分析
魏文暉，周興樂，胡孝平
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(武漢理工大學道路橋梁與結構工程湖北省重點實驗室，武漢 430070)［摘要］根據(jù)閥廳結構的動力特性，推導了考慮懸吊閥塔晃動離心力的閥廳結構動力計算方程，建立了有限元模型，并將深圳某換流站閥廳結構模態(tài)分析結果與實測結果進行對比，驗證了模型的正確性。在此基礎上，對該換流站閥廳結構體系在不同峰值、不同場地和不同方向地震波作用下，分別進行了動力時程分析。根據(jù)分析結果對換流站閥廳結構體系的地震作用效應、塔索的拉力等問題進行了探討，為換流站閥廳結構體系的抗震設計提供依據(jù)。［關鍵詞］換流站閥廳結構；地震作用；懸索動拉力Dynamic analysis on seismic behavior of inverter station valve hallWei Wenhui, Zhou Xingle, Hu Xiaoping(Hubei Key Lab. of Road Bridge and Structure Engineering, Wuhan Univ. of Tech., Wuhan 430070, China)Abstract:The finite element model for dynamic calculation of the valve hall with suspension valve tower was established，and the result of model analysis was compared with the measured result of an inverter station valve hall in Shenzhen to verify the validity of the model. On this basis, dynamic time history analysis was carried out in different peaks, different areas and different directions of seismic waves for this inverter station valve hall. According to the analysis, the seismic behavior of the valve hall and the tensile force of suspension cables were discussed and the suggestion for seismic design of the inverter station valve hall was presented.Keywords:inverter station valve hall; seismic response; dynamic tension of suspension cable作者簡介：魏文暉，博士，教授，Email:weiwenhui@whut.edu.cn。參考文獻［1］康希良，趙鴻鐵，薛建陽，等. 懸吊質(zhì)量結構減震性能的研究［J］. 蘭州理工大學學報，2006，32(4): 112-116.［2］ANH N D, MATSUHISA H, VIET L D, et al. Vibration control of an inverted pendulum type structure by passive mass-spring-pendulum dynamic vibration absorber［J］. Journal of Sound and Vibration, 2007，307:187-201.［3］NIKOLAEN N A, BURGAMEN I N. Earthquake resistance of structures with suspended masses［C］//Proceedings of 5th International Symp on Earthquake Structural Engineering.Missouri USA: University Missouri,1976. 683-698.［4］李宏男. 擺結構體系減震性能研究［J］. 工程力學, 1996, 13(3): 123-129.［5］GB50011—2001建筑抗震設計規(guī)范［S］. 北京：中國建筑工業(yè)出版社，2001.
