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烟囱圆板基础在三角形荷载作用下,按《烟囱设计规范》(GB 50051-2002)计算底板反力P,用此值计算环壁以内底板上部两个正交方向单位宽度的弯矩设计值时,发现与实际受力相差较大。本文根据有限元程序分析圆板在三角形荷载作用下的实际弯矩。同时,通过进一步的分析比较,建议采用本文所述的实用计算方法进行计算。与规范计算公式相比,本文方法可减少配筋。
Under the action of triangular load, the chimney circular plate foundation calculates the reaction force P of the bottom plate in accordance with the Code for Design of Chimney (GB 50051-2002), and calculates the design value of the bending moment per unit width of two orthogonal directions in the upper part of the bottom plate within the annular wall, , Found a significant difference with the actual force. In this paper, according to the finite element program to analyze the circular plate in the triangular load under the actual bending moment. At the same time, through further analysis and comparison, it is recommended to use the practical calculation method described in this article to calculate. Compared with the standard calculation formula, this method can reduce the reinforcement.