- 摘 要
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（1 中國石油化工股份有限公司天津分公司， 天津 300271； 2 中國石化工程建設(shè)有限公司， 北京 100101；3 中國建筑科學(xué)研究院， 北京 100013； 4 天津市城市規(guī)劃設(shè)計研究院， 天津 300201）
［摘要］以具有較大長細(xì)比反應(yīng)器的某石化裝置鋼結(jié)構(gòu)框架為對象，利用脈動法對框架動力特性、反應(yīng)器的振動特性及結(jié)構(gòu)的動力響應(yīng)進(jìn)行了測試，分析框架振動異常原因。構(gòu)造激勵波，采用ANSYS軟件對設(shè)備、結(jié)構(gòu)作整體有限元模型分析，提出合理處治方案，并與實測結(jié)果進(jìn)行對比。結(jié)果表明，支撐在鋼框架上的具有較高長細(xì)比的設(shè)備，生產(chǎn)期間因設(shè)備內(nèi)部物料狀態(tài)的改變引起的設(shè)備及支撐框架的振動，設(shè)計時宜做反應(yīng)器和框架整體動力分析和評價。
［關(guān)鍵詞］較大長細(xì)比反應(yīng)器； 鋼結(jié)構(gòu)框架； 脈動法測試； 振動異常； 構(gòu)造激勵波； 時程分析
中圖分類號：TU392-1文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2017)15-0059-06
Analysis on causes and treatment for abnormal vibration of petrochemical steel structure frame
Hu Yongyi1, Zhu Ji2, Pan Chongping3, Zhou Ran4, Zhang Daqing4
(1 Sinopec Tianjin Company, Tianjin 300271, China; 2 Sinopec Engineering Incorporation, Beijing 100101, China; 3 China Academy of Building Research, Beijing 100013, China; 4 Tianjin Urban Planning & Design Institute, Tianjin 300201, China)
Abstract:A petrochemical steel structure frame with a reactor of large slenderness ratio was taken as the research object, and the pulsating method was employed in testing of dynamic characteristics of the frame, the vibration performance of reactor and the dynamic response of the frame, to analyze the causes of abnormal vibration of the frame. Excitation wave was composed and ANSYS program was used to conduct unitary finite element model analysis on the reactor and frame. Reasonable treatment plan was put forward, and results were compared with the field measured results. Results show that there appear responses in device with large slenderness ratio and supporting steel frame caused by the material status changing within the equipment during production, and unitary dynamic analysis and evaluation should be done in design.
Keywords:reactor of high slenderness ratio; steel structure frame; pulsating method testing; abnormal vibration; composing excitation wave; time history analysis
作者簡介：呼永奕，碩士，一級注冊結(jié)構(gòu)工程師，Email: huran428@163.com。
