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风荷载是间接空冷塔承受的主要荷载,对大型间接空冷塔的结构设计影响尤为重大.塔筒加肋可以增加其表面的粗糙度,有效降低风压分布系数,从而减小塔筒、支柱及环基的内力,进而减少钢筋和混凝土量.工程实践发现,间接空冷塔塔筒加肋对结构工程量的影响与外界基本风压相关.结合某工程实例,量化分析塔筒加肋和无肋2种结构形式下间接空冷塔结构塔体不同部位受力特性及配筋量、塔筒局部稳定性,为间接空冷塔的结构设计提供理论依据,并为其他工程提供参考.
Wind load is the main load that an indirect air-cooled tower is subjected to, which is particularly important for the structural design of a large-scale indirect air-cooled tower.The tower rib with ribs can increase the surface roughness and reduce the wind pressure distribution coefficient, The internal force of the ring foundation, and then reduce the amount of steel and concrete.It has been found in engineering practice that the influence of the indirect air-cooling tower with tower rib on the structural engineering quantity is related to the external basic wind pressure.Combining with an engineering example, Under the two kinds of structures, the mechanical properties and the amount of reinforcement in different parts of tower structure of the indirect air-cooling tower and the local stability of the tower tube provide the theoretical basis for the structural design of the indirect air-cooling tower and provide reference for other projects.