双管自立式钢结构烟囱设计计算分析  

Design and Analysis of a Self-supporting Steel Chimney

作　　者：马人乐[1] 梁杰[1] 

机构地区：[1]同济大学建筑工程系,上海200092

出　　处：《特种结构》2008年第5期5-8,28,共5页Special Structures

摘　　要：双管自立式钢结构烟囱相对于传统工业烟囱最大的特点在于,在抵抗侧向荷载时可以利用钢排烟筒自身刚度,以充分发挥材料本身的强度。本文介绍了某发电厂双管自立式钢结构烟囱的实际工程案例。由于在国内采用较少,所以在本文中对该结构形式进行了详细的计算分析。包括结构体系的特点,荷载工况取值,整体结构弹性分析以及局部构件有限元分析。分析方法和结果可供类似结构的研究和设计参考。Distinguishing from traditional chimney, self-supporting steel chimney has an outstanding feature that stiffness of chimney would make great contribution when bearing lateral loads. Therefore, the full potential of material is brought into play. In this paper, an engineering example of a self-supporting steel chimney is introduced. Detailed calculation was carried out, including linear analysis for integrated structure and finite element analysis for key components. Analytical method and results could be referenced for similar structure.

关 键 词：自立式 烟囱 整体结构分析 节点有限元分析 

分 类 号：TU391[建筑科学—结构工程] TU248.7