（1 清华大学土木工程系 北京 100084；2 国电华北电力设计院工程有限公司 北京 100011）
［提要］某大型火力发电厂烟囱结构中采用大跨度圆环形简支板。原设计方案为钢筋混凝土板，后改为钢混凝土组合板。利用有限元程序对钢筋混凝土板和钢混凝土组合板两种设计方案进行计算分析和对比，说明钢混凝土组合板应用于大跨度不规则板结构的优点和经济指标。工程实践表明，应用效果良好。
［关键词］ 钢筋混凝土环板 钢混凝土组合环板 有限元分析 工程应用
Application of Composite Steelconcrete Slab in a Chimney Construction/Nie Jianguo1,Tian Chunyu1,Zhou Jianjun2,Liu Changqing2,Li Xingli2(1 Civil Engineering Department,Tsinghua University, Beijing 100084,China; 2 North China Power Engineering Co., Ltd., Beijing 100011,China)
Abstract:The design and analysis of longspan cirque simple supported slab are introduced in a chimney construction.The reinforced concrete slab is used in the original design and then replaced by the steel concrete composite slab.Finite element method is used to analyze reinforced concrete slab and steelconcrete composite slab, and the cost of materials is compared. The analysis results reveal that steelconcrete composite slab has advantage over reinforced concrete slab when used in  longspan and special slab structure.
Keywords:reinforced concrete cirque slab;   steelconcrete composite cirque slab;   finite element analysis; engineering practice