某钢筋混凝土套筒式烟囱外筒的受力分析与结构设计  

Structural Design and Force Analysis on Exterior Tube of the Tube-in-tube R.C.Chimney

作　　者：颜伟华 王庆海 陈玲 金福青 王茜 

机构地区：[1]中国五洲工程设计集团有限公司,北京100053

出　　处：《特种结构》2015年第1期114-117,6,共5页Special Structures

摘　　要：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。R.C.tube-in-tube multi-flue chimney in one power plant in Tianjin was taken as an example to conduct an analysis on exterior tube of the tube-in-tube multi-flue chimney.A series of parameters on structural performance was obtained through stress analysis on the exterior tube by using three kinds of finite-element analytical software（ETABS,MIDAS and PKPM）.And then characteristics of the stress and deformation were found by making comprehensive comparison of the results.By doing so,weak points that might exist can be spotted and reinforced when design is being made,and this analysis can serve as guiding basis for working drawing design of the chimney of such a kind and for development of new analytical software on design.

关 键 词：钢筋混凝土烟囱 有限元 结构性能 

分 类 号：TU375[建筑科学—结构工程]