【摘要】：多層工業(yè)廠房引進大型動力設備而引起的結(jié)構振動時有發(fā)生。為了研究動力設備擾力作用下結(jié)構振動問題,結(jié)合某篩分樓在振動篩工作時廠房振動強烈的工程實例,通過現(xiàn)場振動測試和有限元軟件Sap2000建模分析,對比理論分析結(jié)果與振動測試結(jié)果,驗證了模型的合理性并確定振動原因。在有限元分析的基礎上提出二次隔振加固方案,加固前后的理論計算值對比表明:二次隔振方案減振效果顯著,可為既有結(jié)構異常振動的減振加固提供一定參考。
[Abstract]:Structural vibration caused by the introduction of large power equipment in multi-storey industrial plants occurs from time to time. In order to study the problem of structural vibration under the action of disturbance force of power equipment, combined with the engineering example of strong vibration of factory building when vibrating screen is working, the field vibration test and finite element software Sap2000 modeling and analysis are carried out. By comparing the theoretical analysis results with the vibration test results, the rationality of the model is verified and the vibration cause is determined. On the basis of finite element analysis, the secondary vibration isolation reinforcement scheme is put forward. The comparison of the theoretical calculation values before and after reinforcement shows that the secondary vibration isolation scheme has remarkable damping effect, which can provide a certain reference for the vibration reduction reinforcement of the existing structures with abnormal vibration.
【作者單位】： 西安建筑科技大學土木工程學院;
【分類號】：O328

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