本文用Novozhilov壳体理论和本文作者所建议的一般旋转壳的环肋理论,采用旋转壳有限环单元,计算分析了钢筋混凝土材料双曲冷却塔的自由振动和在阵风作用下的动力响应问题。文中详细讨论了肋的质量、刚度,横截面尺寸,加肋的位置、数量、以及劝的偏心对双曲冷却塔壳固有频率、振型、阵风响应的影响。本文的计算结果及其由此得到的结论对于目前双曲冷却塔的研究、设计、制造具有重要的指导意义。 In this paper, by using the theory of Novozhilov shell and the ring rib theory of the general rotating shell proposed by the authors, the finite element of the rotating shell is used to analyze the free vibration of the hyperbolic cooling tower of reinforced concrete material and the dynamic response under the action of gust. In this paper, the influences of rib quality, stiffness, cross-section size, location and number of ribbing, and advised eccentricity on natural frequency, mode shape and gust response of hyperbolic cooling tower are discussed in detail. The calculation results and the conclusions drawn from this paper are of great significance to the current research, design and manufacture of hyperbolic cooling towers.