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本文以同时考虑坝体的弯曲变形与剪切变形影响的楧钗?从理論和試驗两方面对混凝土重力坝及坝內式水电站空心重力坝的自振特性进行了研究诒疚牡牡谝徊糠萁亓⒑喕苫∥战拥男哿菏浇Y构,进行其自振問題分析。根据简化图形及解决問题的途径不同,作者使用两种分析方法;(1)将重力坝简化成三角形悬臂梁的級数解法。(2)考虑垻体实际外形的半理論半試驗的振型叠加原理的方法:經过試驗驗证上述两种方法基本正确,可供設計参考之用。研究的結果也回答了一般将重力垻简化成三角形外形进行其动力分析的合理程度及由此带来的差别。在本文的第二部分介紹了一种分析垻內式水电站空心重力垻自振特性的方法——考虑垻体实际外形的半理論半試驗的振型叠加原理的方法。經过試驗驗証此法基本正确,可供設計参考之用。
In this paper, the self-vibration characteristics of concrete gravity dams and hollow gravity dams with hydropower stations are studied in terms of both theoretical and experimental considerations of both bending deformation and shear deformation.谝徊糠萁亓 10. 喕苫∥ 喕苫∥ 拥 拥 拥 拥 哿 哿 哿 , , , , , , , , , , , , , , , , , According to different ways of simplifying graphs and solving problems, the author uses two kinds of analysis methods; (1) The gravity dam is reduced to a series solution of a triangular cantilever beam. (2) The method of vibration mode superposition principle considering the semi-theoretical semi-test of the actual shape of the carcass: the above two methods are basically verified by experiments and are available for design reference. The results of the study also answered the rationality and the resulting differences in the general dynamic analysis of gravity from a triangular shape. In the second part of this paper, we introduce a method for analyzing the natural vibration characteristics of the hollow gravity enthalpy at the Raohe-type hydropower station, which considers the mode superposition principle of the semi-theoretical semi-test of the actual shape of the concrete body. The test has verified that this method is basically correct and can be used for design reference.