【摘要】 本文对一个拱形重力坝进行了软胶模型和石膏模型动力试验；建议了一种用梁向的平面有 限元和拱向的差分组合来代替空间结构分析的近似方法；用有限点法确定了拱形重力坝的振型 动水压强；用摄动法确定了满库时坝的动力特性。更多还原

【Abstract】 The dynamic behavior of an arch-gravity dam during earthquakes is determined by the gelatin-model dynamic test, gypsum-model dynamic test and the approximate analysis. These results are fairly comsistent. The appr- oximate analysis method proposed in this paper is to determine the dynamic behavior of the entire dam from the dynamic behaviors of some vertical cross sections. The natural frequencies, modal shapes and the stresses of the dam with reservoir full are determined in terms of those yolues with reservoir empty by the perturbation method.更多还原