随机缺陷对冷却塔屈曲承载力的影响分析
nalysis on Buckling Capacity of Cooling Towers with Random Geometric Imperfections
考虑几何初始缺陷的随机性，采用概率密度演化理论分析风荷载作用下冷却塔屈曲承载力的演化过程。考虑一阶屈曲模态为缺陷构型，分析结果表明：荷载比例因子的随机性随加载弧长逐渐增大。当缺陷幅值的标准差取为施工规范限值时，其屈曲承载力明显低于不考虑缺陷影响时的冷却塔承载力。
aking geometric imperfection into account, the buckling capacity of a cooling tower was evaluated using probability density evolution method. Taking the first-order buckling mode as the imperfection configuration, the simulation results indicated that the variation increased with arc length. The buckling capacity considering the effect of imperfection indeed decreased as the imperfection amplitude was specified with the limitation of construction.
平旸杰、徐亚洲
工程基础科学通用技术、通用设备
冷却塔概率密度演化初始缺陷风荷载
cooling towerprobability density evolution methodinitial imperfectionwind loads
平旸杰,徐亚洲.随机缺陷对冷却塔屈曲承载力的影响分析[EB/OL].(2016-05-20)[2025-08-11].http://www.paper.edu.cn/releasepaper/content/201605-902.点此复制
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