水电站立式机组机墩设计的一个重要环节,是在各种受力情况下对机墩结构正确地进行静力和动力分析。目前,静力分析已有比较成熟的方法,而动力分析特别是机墩垂直自振频率的计算尚无成熟的方法,为此,在设计中各家常采用不同的计算分析方法,其中使用较多的是工程频率公式,但计算结果往往不能满足不发生共振的要求,而实际上又能安全运行。鉴于上述情况,本文提出一种计算方法,与读者共同探讨。 An important part of the design of vertical piers for piers of hydropower stations is that the static and dynamic analysis of the pier structure is carried out correctly under various stress conditions. At present, static analysis has more mature methods, and dynamic analysis, especially the calculation of vertical natural frequency of piers there is no mature method, for which, in the design of each often use different calculation and analysis methods, which use more The engineering frequency formula, but the results often can not meet the resonance does not occur, but in fact safe operation. In view of the above situation, this paper presents a calculation method, and readers to explore.