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本文以天津某发电厂的钢筋混凝土多管套筒式烟囱为例,对多管套筒式烟囱的外筒进行研究,通过三种有限元分析软件(ETABS、MIDAS、PKPM)对钢筋混凝土多管套筒式烟囱的外筒进行受力分析,得到了一系列结构性能参数指标,再对分析结果进行综合对比后,总结归纳出钢筋混凝土外筒的受力及变形特点,并且找到可能存在的薄弱部位在设计时予以加强,希望本文的分析结果能为指导该类型烟囱的施工图设计及新的设计分析软件的开发提供依据。
In this paper, a multi-pipe reinforced concrete chimney in a power plant in Tianjin was taken as an example to study the outer cylinder of the multi-tube chimney. Three types of reinforced concrete multi-tube (ETABS, MIDAS, PKPM) The outer cylinder of the chimney stack is subjected to the force analysis. A series of structural performance parameters are obtained. After comprehensive comparison of the analysis results, the force and deformation characteristics of the outer cylinder of the reinforced concrete are summarized, and the possible weakness is found Site design should be strengthened, I hope the results of this paper can guide the construction of this type of chimney design and the development of new design and analysis software to provide the basis.