三角形荷载作用下烟囱圆板基础环壁内的上部弯矩分析  

Analysis of Up Moment of Round Plate of Chimney Foundation in the Ring Shell Under Triangle Load

作　　者：钟金周[1] 方伟定[1] 余智恩[1] 李琪[1] 

机构地区：[1]浙江省电力设计院,杭州310012

出　　处：《特种结构》2010年第5期67-70,共4页Special Structures

摘　　要：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 triangle load action, the design value of calculated the morrvents, calculated by the pressure p got from the Code For Design of Chimneys, GB5001 - 2002） in two orthogonal direction at unit width at the up part of the bed plate within the ring shell is greatly different from the actual ones. A FEA method is brought forward in the paper to analyze the actual moment and compare the result with that by the code. It＇s shown that the cost will be saved by the method of this paper.

关 键 词：烟囱圆板基础 三角形荷载 弯矩 

分 类 号：TU470.3[建筑科学—结构工程]