双曲线冷却塔风筒几何缺陷分析  

Analysis on geometrical imperfections of air tunnel in hyperbolic cooling tower

作　　者：刘树国[1] 

机构地区：[1]辽宁电力勘测设计院发电工程部,沈阳110179

出　　处：《沈阳工程学院学报（自然科学版）》2012年第2期116-121,共6页Journal of Shenyang Institute of Engineering:Natural Science

摘　　要：由于施工放样原因,双曲线冷却塔风筒发生移位变形,筒壁出现初始几何缺陷,偏差超出规范允许值,造成冷却塔应力状态改变.利用冷却塔专用计算软件对冷却塔结构进行静力计算,根据计算的内力对强度进行验算,分析初始几何缺陷对冷却塔应力状态的影响,评价冷却塔结构安全性及是否需要进行加固处理,并对冷却塔后期维护提出建议.Because of construction lofting reason, the geometrical imperfection of hyperbolic cooling tower shell is beyond the allowable value standard and leads to the change of stress condition. This paper makes the static analysis of structure through the special calculation software about cooling tower, according to the internal stress and the loading capacity of the tower, analyzing initial geometric imperfection on cooling tower the effect of stress state, cooling tower structure safety evaluation and whether or not to make the reinforcement, and put forward the proposal to later period maintenance cooling tower.

关 键 词：双曲线冷却塔 风筒几何缺陷 应力状态 结构验算 安全评价 

分 类 号：TU375[建筑科学—结构工程]