【摘要】 本文通过线弹性动力有限元方法分析溪洛渡拱坝的自振频率和振型 ,比较了不同水位、不同地基模型对拱坝一地基系统自振频率的影响 ,采用反应历程法计算拱坝在不同水位和不同地震输入条件下的地震响应 ,并对计算结果进行了评价和讨论。更多还原

【Abstract】 Xiluodu arch dam is a high concrete dam in the southwest of China.Comparison of the mode shape and natural frequency of the dam foundation system under different water levels and different foundation simplified models is analyzed with linear elastic finite element method.The seismic response caused by different combinations of earthquake records under different water level are computed with time history method.Estimation of numerical results and discussion of high arch dam analysis are performed in this paper.更多还原