简述了洗煤厂15 m 直径圆形筒仓仓上建筑加层改造设计方案，采用有限元软件对不同加固方案分别建模计算，通过分析三种不同改造方案的内力、应力计算结果，对原结构关键部位进行校核，分析了每种改造方案的可行性，分析表明结构加固改造应针对原结构的具体情况，综合考虑结构安全、施工简单、工期短、造价低等多方面因素，选用最佳设计方案。%This paper expounds the 15 m diameter circular silo on reinforcement and reconstruction design of storey-adding on the building above top of silo. With finite element software modeling calculation of different reinforcement schemes respectively,through the analysis of three differ-ent reconstruction scheme of internal force,stress calculation results of the original structure of key parts,this article analyzes the feasibility of each scheme. Analysis indicates that the structure reinforcement and reconstruction according to the specific condition of the original structure, considering the structure safety,simple construction,short construction period and low cost factors,choose the best design solution.
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